Author Topic: Chain Questions  (Read 1197 times)

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Offline Rosinante

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Chain Questions
« on: June 14, 2024, 03:05:23 PM »
I simply cannot imagine this could be a controversial topic but I am wondering about riveted chains versus master links. Has this been discussed here before?      8)

But seriously folks.....I guess my main question is whether or not a rear wheel can be removed, by removing the front sprocket, without breaking the chain.  My bike is a 1978 CB750K.

'Nuther question:  I removed the wheel by removing the master link.  Shouldn't I at least get a fresh new masterlink to reinstall?  Or would some of you reuse a master link and clip?

But yeah, I am thinking of just asking the shop to make my chain fully riveted and just remove the front sprocket as part of the wheel removal process.  If this is possible......
1978 CB750K

Offline madmtnmotors

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Re: Chain Questions
« Reply #1 on: June 14, 2024, 03:11:41 PM »
Riveted link chain does NOT require removal of the front sprocket in order to remove the rear wheel from a SOHC CB750. To remove the wheel all you have to do is loosen the adjusters and remove the rear axle bolt and brake arms. Then the axle spacers drop out and the chain is lifted off the rear sprocket. The gap provided by removal of the axle spacers allows the wheel to roll free.

EZPZ  8)
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

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Offline willbird

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Re: Chain Questions
« Reply #2 on: June 14, 2024, 04:07:19 PM »
In this day and age of good chains I see no reason to have an endless chain, they used them originally because they were required for the truly awesome power of our bikes for the chains of that time. I would also never worry about re using a link that seemed to be in good condition.


Offline Rosinante

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Re: Chain Questions
« Reply #3 on: June 14, 2024, 04:20:51 PM »
Riveted link chain does NOT require removal of the front sprocket in order to remove the rear wheel from a SOHC CB750. To remove the wheel all you have to do is loosen the adjusters and remove the rear axle bolt and brake arms. Then the axle spacers drop out and the chain is lifted off the rear sprocket. The gap provided by removal of the axle spacers allows the wheel to roll free.

EZPZ  8)

Nope.  At least as far as I can see.  Exhaust pipes are in the way of removing the axle shaft.  If the shaft can be removed rearward past the forks holding them at the end of the swing arm, then sure.  But that would require removal of the front sprocket.  This is my question.  If the rear wheel can be removed without breaking the chain, then it would require front sprocket removal.  Will this work?
1978 CB750K

Offline Ozzybud

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Re: Chain Questions
« Reply #4 on: June 14, 2024, 04:56:48 PM »
Riveted link chain does NOT require removal of the front sprocket in order to remove the rear wheel from a SOHC CB750. To remove the wheel all you have to do is loosen the adjusters and remove the rear axle bolt and brake arms. Then the axle spacers drop out and the chain is lifted off the rear sprocket. The gap provided by removal of the axle spacers allows the wheel to roll free.

EZPZ  8)

Nope.  At least as far as I can see.  Exhaust pipes are in the way of removing the axle shaft.  If the shaft can be removed rearward past the forks holding them at the end of the swing arm, then sure.  But that would require removal of the front sprocket.  This is my question.  If the rear wheel can be removed without breaking the chain, then it would require front sprocket removal.  Will this work?

Does your current chain have a masterlink? if it does ..Remove it and the whole rear wheel will slide out towards the rear

If it is a solid chain break the chain  and remove the entire wheel assemble towards the rear.

If you don't want to break the chain remove the exhaust in the way of sliding the axle out.

The axle does not need to come out in the direction of the exhaust if you break the chain. You should not have to mess with the front sprocket.
« Last Edit: June 14, 2024, 05:04:53 PM by Ozzybud »
1976 Z50A YELLOW
1970 CT70 BLUE
1971 CT70H ORANGE
1972 CT70H GREEN
1973 CL200 BLUE
1973 CB350F RED
1975 CB360T RED
1975 CB400F BLUE
1975 CB550 ORANGE
1976 CB750F RED

Offline denward17

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Re: Chain Questions
« Reply #5 on: June 14, 2024, 05:24:55 PM »
Yo do not need to remove the chain or the rear axle to remove the wheel.  Just remove part #8 above.

Removing the chain guard will help with visibility.

Offline HondaMan

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Re: Chain Questions
« Reply #6 on: June 14, 2024, 06:04:40 PM »
On the K7/8 I have usually had to remove the screws (bolt-lets?) of the chainguard to get the rear wheel+axle out with the 4 pipes. This was one item where the 4-1 pipe of the "F" bikes had a small advantage. Loosen the axle nut (well) and [usually] the chain adjuster bolts so the axle mounts can be swung down out of the way, then push the wheel forward, lift the chain off the sprocket and let it sit to the left side, then pull the wheel back until the axle falls out of the swingarm's fork mount. Putting it back in might need the assist of some board(s) (or rocks, if you're on the side of the interstate) to raise the wheel assembly when putting it back in, though - it's not light!

On the K0-K6 with all 4 pipes it's easier than on the later 4-pipers, to be sure! This system was created for the 750 due the the weight of the rear wheel assembly. On the early ones it works very well, on the later ones it still works, is just a little clumsy. Many other bikes copied it after 1980.
See SOHC4shop@gmail.com for info about the gadgets I make for these bikes.

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Offline bryanj

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Re: Chain Questions
« Reply #7 on: June 14, 2024, 07:45:23 PM »
As to reusing a split link, why not
Semi Geriatric ex-Honda mechanic and MOT tester (UK version of annual inspection). Garage full of "projects" mostly 500/4 from pre 73 (no road tax in UK).

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Offline Tracksnblades1

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Re: Chain Questions
« Reply #8 on: June 14, 2024, 08:32:50 PM »
I’d cut the chain and put together a 530rk chain and sprocket kit and free up some horsepower…😁

A lot quieter than shaaaashaaaashaaa noise that 630 makes slushing around..
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Offline PeWe

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Re: Chain Questions
« Reply #9 on: June 14, 2024, 11:37:30 PM »
All strong chains have riveted master link.
No problem at all.

Hollow link is easiest and can be done with the cheaper tools. Solid link is pita.

Good idea to buy an extra master link or two with the chain. Distances on both sides when riveting another needed detail to not rivet too hard. Some chains have it included in the package. Grease the link where riveting by rotating and squeezing.

Only situation that need to open rhe chain is when replacing it.

I have pulled engine off the frame without open the chain.

I make more slack by lifting off the front sprocket and push it with chain backwards, rear wheel at max forward position.

Now easy to remove wheel or pull engine.

Open chain and rivet a new master link is trickier. Must be riveted hard enough but not too close so chain will look like a Z around master link.

I have several memories of clip link chains where clip had jumped off despite properly mounted.  Both my bike and friends.

The  chains I have used since 2013 have stretched very little. Not as the chains in the 80's that needed a wheel adjustment very often.

My K6 with over 100whp and lots of torque has  DID  530 ZVM-X.

My K2  that had 58-59whp on dyno got DID 530 VX purchased 2018. The version today is slightly stronger. Bike runs better now.

Both bikes had needed adjustment very seldom. Probably the first time when new. Then when replacing the tire.

I understand guys with  collectors bikes, museum style not much used that use old style clip chain.
They can use weaker chains and tires that do not last long, stock style is more important.
« Last Edit: June 14, 2024, 11:43:22 PM by PeWe »
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
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Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline Rosinante

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Re: Chain Questions
« Reply #10 on: June 15, 2024, 07:24:36 AM »
Thanks to all!

Yes, I have already upgraded to the 530 chain for this bike.  To remove the rear wheel yesterday (rear tire had a bit of wobble most of which the bike shop was able to eliminate vy adjusting spokes) I removed the clip and master link.  I think I will take this chain to that shop and ask that a new link be installed by swedging.  This would give me peace of mind, and I think I can get the wheel back on with that continuous chain.  I still think I may have to remove the front sprocket, which seems WAY easier than removing stuff like exhaust pipes.  I will still need to get the chain onto the rear sprocket and the chain may not be long enough for that.  This chain is near the forward end of the adjuster notches at the end of the swing arm.  If this chain had another link, or maybe two, it would still fall within the rearward adjuster notches. 

I will probably report back.  While the wheel is out, today, I will install new rear brake shoes. 
1978 CB750K

Offline MauiK3

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Re: Chain Questions
« Reply #11 on: June 15, 2024, 07:51:14 AM »
I'm pretty conservative on the throttle, have always used a master link, never have had one break.
1973 CB 750 K3
10/72 build Z1 Kawasaki

Offline RAFster122s

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Re: Chain Questions
« Reply #12 on: June 15, 2024, 09:13:42 AM »
Thanks to all!

Yes, I have already upgraded to the 530 chain for this bike.  To remove the rear wheel yesterday (rear tire had a bit of wobble most of which the bike shop was able to eliminate vy adjusting spokes) I removed the clip and master link.  I think I will take this chain to that shop and ask that a new link be installed by swedging.  This would give me peace of mind, and I think I can get the wheel back on with that continuous chain.  I still think I may have to remove the front sprocket, which seems WAY easier than removing stuff like exhaust pipes.  I will still need to get the chain onto the rear sprocket and the chain may not be long enough for that.  This chain is near the forward end of the adjuster notches at the end of the swing arm.  If this chain had another link, or maybe two, it would still fall within the rearward adjuster notches. 

I will probably report back.  While the wheel is out, today, I will install new rear brake shoes. 

How much are you going to disassemble to get the continuous loop chain back on the bike after a shop swedges it into a continuous loop?
David- back in the desert SW!

Offline Rosinante

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Re: Chain Questions
« Reply #13 on: June 15, 2024, 10:32:24 AM »
Update:  I do not have the chain breaker/reveting tool.  It would probably be smart of me to have this tool since I suspect it would allow chain breaking and riveting with the chain on the bike.  Today I seem to be only smart enough to take the chain to my favorite shop.

With the (clip-type) master link removed I could have removed the chain easily but I wanted to see what is involved in removing/reinstalling a continuous chain.  I found that with the 530 chain and sprockets I am using (I am still grateful to denward17 for his help on this last year), the front sprocket can be removed.  It was then that I noticed the swing arm will need to be removed, which is not a huge deal.  I now know I can remove/reinstall a continuous chain, so long as HondaMan's method works in the sense that the chain can be removed from the rear sprocket and moved to the left so the wheel can be removed or installed.  I am confident about this for two reasons.  First, this advice came from HondaMan.  'Nuff said.  Also, since I can have the front sprocket off for this operation, there will be a LOT of slack in the chain.  I suspect this whole operation can be done with the front sprocket cover and sprocket in place but I can see the swing arm will need to come off.  Again, not a big deal and swing arms need love (cleaning, greasing) too.

Is it worth it?  Engine cases are important and peace of mind is very valuable to me.
1978 CB750K

Offline denward17

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Re: Chain Questions
« Reply #14 on: June 15, 2024, 11:13:08 AM »
Thanks for the kudos, but I'm not sure I understand what you are trying to accomplish now?

Do you have a continuous chain?  If so, you will need to remove the swingarm to remove the chain, unless you cut it off.  I just cut mine off when I converted to 530.

Offline madmtnmotors

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Re: Chain Questions
« Reply #15 on: June 15, 2024, 12:23:46 PM »
Hondaman has described how to do it with the 4-4 exhaust, without removing the exhaust and without removing the front sprocket.
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

Sent from my Tandy TRS-80!

Offline Rosinante

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Re: Chain Questions
« Reply #16 on: June 15, 2024, 05:42:31 PM »
Thanks for the kudos, but I'm not sure I understand what you are trying to accomplish now?

Do you have a continuous chain?  If so, you will need to remove the swingarm to remove the chain, unless you cut it off.  I just cut mine off when I converted to 530.

The wheel and tire needed to be looked at because of a wobble.  I just removed the master link for this, but then decided I did not want to put the clip b ack in.  I want the security of a continuous chain.  This is why I am exploring the continuous chain R&R question.  The answer seems to be that exhausts and probably also front sprockets do not need to be removed.  But as you say....swing arm does need to come off.  Easy peezy, in my view.  Particularly when you notice this is only necessary when replacing a continuous chain.  If you are just removing the wheel, the chain and swing arm stay on.  According to HondaMan's procedure, which I will verify when I reinstall.  The chain and swing arm will go on first, and the installation of the wheel will confirm what we already know from HondaMan.
1978 CB750K

Offline madmtnmotors

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Re: Chain Questions
« Reply #17 on: June 15, 2024, 07:38:35 PM »
Okay, now I get it. You want a shop to press the continuous link in place so you can carry the chain home and install it. In this case, then yes you will have to remove the front sprocket and swingarm.
TAMTF...


Wilbur



Projects:
"Evolution": http://forums.sohc4.net/index.php?topic=100352.0
"P.O. Debacle": http://forums.sohc4.net/index.php/topic,126692.msg1441661.html#msg1441661
F2/F3 O-rings: http://forums.sohc4.net/index.php?topic=113672.msg1300721#msg1300721
Cam Tower Studs: https://www.mcmaster.com/#93210a017/=t19sgp
Clean up that nasty harness: http://forums.sohc4.net/index.php?topic=137351.msg1549191#msg1549191
http://forums.sohc4.net/index.php/topic,148188.msg1688494.html#msg1688494
http://forums.sohc4.net/index.php/topic,139544.msg1579364.html#msg1579364
                                          
Charging system diagnosis: http://forums.sohc4.net/index.php?topic=1012.msg8345#msg8345
Get the manuals: http://manuals.sohc4.net/cb750k/
The Dragon: http://forums.sohc4.net/index.php?topic=45183.msg1571675#msg1571675
Headlight Switch: http://forums.sohc4.net/index.php?topic=113986.msg1283236#msg1283236
Branden's leak free top end thread: http://forums.sohc4.net/index.php?topic=107040.0
Engine Lifting Made Easy: http://forums.sohc4.net/index.php/topic,58210.msg1684742.html#msg1684742
                                      http://forums.sohc4.net/index.php/topic,100352.msg1675840.html#msg1675840
Static and Dynamic Timing: http://www.hondachopper.com/garage/carb_info/timing/timing1.html
Airbox Gasket Replacement: http://forums.sohc4.net/index.php/topic,114485.msg1290000.html#msg1290000
"Café" : http://forums.sohc4.net/index.php/topic,84697.msg953814.html#msg953814
PD Carb Choke Linkage: http://forums.sohc4.net/index.php/topic,100352.msg1669248.html#msg1669248
                                    http://forums.sohc4.net/index.php/topic,110931.msg1248354.html#msg1248354
                                    http://forums.sohc4.net/index.php/topic,48858.msg515204.html#msg515204
Follow up on your damn posts: http://forums.sohc4.net/index.php/topic,144305.msg1791605.html#msg1791605
Taiwanese Cam Chain Tensioners:  http://forums.sohc4.net/index.php/topic,155043.msg1774841.html#msg1774841
Gumtwo Seat Cover: http://forums.sohc4.net/index.php/topic,164440.msg1897366.html#msg1897366
Primary Drive: http://forums.sohc4.net/index.php/topic,166063.msg1919278.html#msg1919278
Tank Latch: http://forums.sohc4.net/index.php/topic,165975.msg1919495.html#msg1919495
Shorten your forks: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-shorten-forks-td4042465.html DO NOT CUT THE SPRINGS!
Clutch How To: http://vintage-and-classic-honda-s.456789.n3.nabble.com/How-to-change-and-adjust-a-clutch-SOHC-td4040391.html
Late model K7/K8/F2/F3 front sprocket cover removal: http://forums.sohc4.net/index.php/topic,178428.msg2072279.html#msg2072279
630 to 530 conversion: http://forums.sohc4.net/index.php/topic,180710.msg2094423.html#msg2094423

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Offline rotortiller

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Re: Chain Questions
« Reply #18 on: June 15, 2024, 09:27:31 PM »
Quote
I have usually had to remove the screws (bolt-lets?) of the chain guard to get the rear wheel+axle out

I have found that removing a few extra parts for better access helps to prevent scratch damage and makes for a more pleasant, easier experience. Why rush, hammer, twist, and bang away to cause yourself grief.  It's also a good time to clean and inspect while in that area. I have no problem taking the wheel off my K7 with a rivet link chain as the wheel parts are designed for that. That being said a clip link is fine and safe plus would save you buying a rivet tool and potentially messing up the first couple of master links. You also may leave the wheel in place with a clip link. Pulling the wheel and swing arm to change an endless chain while not hard is not my first choice. Lots of ways to skin the kat. The fun part will be when you get home from the shop and find out the chain is either too long or too short. :)

Offline HondaMan

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Re: Chain Questions
« Reply #19 on: June 15, 2024, 09:47:24 PM »
[Back when it was King Chain] The Diamond XL/XDL chains have a fully press-on type of sideplate, which is also held on with a flush-closing clip. The press-on portion of this chain requires having an extra sideplate to stack on top of the link's sideplate. You first press the sideplate into seating location (there's a step on the shafts of the masterlink's pegs, with the nubs above the clip portion slightly smaller OD than the link's pins) and then, using needle-nose or [genuine] Honda toolkit pliers, you install the clip until it's open ends meet over both pins. It's a truly bulletproof masterlink, being as strong as the others (which normally isn't the case). In my book there is a picture of a screwdriver pointing to just such a masterlink, minus the clip, that had been ridden for quite some miles (days) before it came to me: even then the link plate still had to be pressed off with a link tool!

I have recently installed several new chains from [modern day] RK, some knockoffs of the Diamond (not nearly as good) and Tsubaki, but have not found such a strong masterlink in them. What other brands have a link like this one today? Anyone?
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Offline Rosinante

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Re: Chain Questions
« Reply #20 on: June 15, 2024, 10:00:04 PM »
Yes rotortiller.  This is a 'pick your poison' choice.  Lots of controversy and scary stories about clip links and NOBODY has told a story about a rivet link that is weaker than the clip style.  I am very fond of my engine case, and peace of mind, and do not even slightly mind the extra step of loosening the two lower shock bolts and removing the big nut holding the swing arm in place.  (this is for removing the continuous riveted chain)  They will be very clean when I reinstall them, and inspected. 

For simply removing the wheel, I think your (and my) assumption about the front sprocket is likely incorrect.  I suspect it's as simple as pushing the wheel forward, slipping the chain off the sprocket to the left, then removing the wheel through the right rear.  And I am going to find out next week.
1978 CB750K

Offline willbird

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Re: Chain Questions
« Reply #21 on: June 16, 2024, 04:59:06 AM »
Every bike made now pretty much comes with a master link chain. I’ll leave continuous drive chains back in the 1970’s where they belong, especially with a bike that made 60hp at best. The horror stories in the 70’s were guys using industrial chain in OEM size with an industrial master link. those always broke.



Bill

Offline PeWe

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Re: Chain Questions
« Reply #22 on: June 16, 2024, 05:05:43 AM »
A weaker chain that stretch much and must frequently be adjusted to avoid too much slack another thing that can cost.

I did not adjust in time on a holiday, "next stop".
In an uphill I shifted down to 3rd + WOT to pass slower going trucks, chain snapped.
836cc and more maybe 75-80whp back then .

Lucky me no cracked cases. Only snapped chain guide bracket on the swingarm, very ugly deep marks on rear hub, sprocket retainer and licence plate got a hit too.

That was the DID 50 HDS o-ring chain that was stronger than stock style. It was not the clip style master link that snapped.

A chain that will not stretch much without  need to be adjusted every 1000km or so  is another good detail to pay extra for.
CB750 K6-76  970cc (Earlier 1005cc JMR Billet block on the shelf waiting for a comeback)
CB750 K2-75 Parts assembled to a stock K2

Updates of the CB750 K6 -1976
http://forums.sohc4.net/index.php/topic,180468.msg2092136.html#msg2092136
The billet block build thread
http://forums.sohc4.net/index.php/topic,49438.msg1863571.html#msg1863571
CB750 K2 -1975  build thread
http://forums.sohc4.net/index.php/topic,168243.msg1948381.html#msg1948381
K2 engine build thread. For a complete CB750 -75
http://forums.sohc4.net/index.php/topic,180088.msg2088008.html#msg2088008
Carb jetting, a long story Mikuni TMR32
http://forums.sohc4.net/index.php/topic,179479.msg2104967.html#msg2104967

Offline rotortiller

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Re: Chain Questions
« Reply #23 on: June 16, 2024, 05:59:31 AM »
Some guys had the battery vent tube dripping on the chain! lol Some installed the clip backwards, some failed to seat the clip properly and some used incorrect links, and this little piggy went all the way home with a good installation. :)

Offline willbird

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Re: Chain Questions
« Reply #24 on: June 16, 2024, 06:46:08 AM »
Some guys had the battery vent tube dripping on the chain! lol Some installed the clip backwards, some failed to seat the clip properly and some used incorrect links, and this little piggy went all the way home with a good installation. :)

Some of our older equipment at work had miles of 40,50,60 Diamond roller chain. Never once saw a master fail, nobody paid any attention to install direction either. Half links yep saw LOTS of those fail. one conveyor had hundreds 40 size chains that were about 12” worth of chain. preparing for rebuilding that one meant folks with nothing else to do would sit and break those lengths of chain their whole shift. We have one machine that uses #100 chain