Author Topic: Chain length (Read 7911 times)

longshanks · « **on:** November 12, 2011, 02:03:42 PM »

So its time to replace my chain and sprocket on my 750 so I was counting out the links on my chain and it came out to 84 links. I also counted the rear sprocket and I have 40teeth which is way below stock. I don't know the teeth on the front sprocket as I haven't pulled the front cover yet. Right now at 5k rpm on the freeway I clock in a little below 80 with a 120/90-18 rear tire. Isn't stock on a K6 18/48 for the sprockets? and is 84 links way too short? Will I see a big difference freeway speeds/acceleration when going to stock? Here is a video I posted a while ago showing how crappy and stretched out my chain is:

cb750 chain rattle

It's a really crude chain as it seems like it came from a dirt bike.

MCRider · « **Reply #1 on:** November 12, 2011, 02:18:23 PM »

Quote from: longshanks on November 12, 2011, 02:03:42 PM

So its time to replace my chain and sprocket on my 750 so I was counting out the links on my chain and it came out to 84 links. I also counted the rear sprocket and I have 40teeth which is way below stock. I don't know the teeth on the front sprocket as I haven't pulled the front cover yet. Right now at 5k rpm on the freeway I clock in a little below 80 with a 120/90-18 rear tire. Isn't stock on a K6 18/48 for the sprockets? and is 84 links way too short? Will I see a big difference freeway speeds/acceleration when going to stock? Here is a video I posted a while ago showing how crappy and stretched out my chain is:

cb750 chain rattle

It's a really crude chain as it seems like it came from a dirt bike.

18/48 = .375. 16/40 = .40, only a little higher. IIRC 5K sb a little more than 70. So if you have a 16 (or a 15) front sprocket, all sounds well.

I'd go back to a 17/48 (=.35) for better chain wear and good compromise between accel and highway rpms. Bout 102 link I think.

Spanner 1 · « **Reply #2 on:** November 12, 2011, 02:34:35 PM »

On a K6 with 530 chain, it should be 100 links with 17/48 sprockets.... I just put an X-Ring chain on my K1.... OMG what a difference ! and no need of adjustment yet ( about 400 miles ). The old chain needed adj. every day I rode the bike

. Cost 40 bucks, well worth it !

longshanks · « **Reply #3 on:** November 13, 2011, 12:45:56 AM »

Quote from: Spanner 1 on November 12, 2011, 02:34:35 PM

On a K6 with 530 chain, it should be 100 links with 17/48 sprockets.... I just put an X-Ring chain on my K1.... OMG what a difference ! and no need of adjustment yet ( about 400 miles ). The old chain needed adj. every day I rode the bike . Cost 40 bucks, well worth it !

Spanner, your X-ring chain only cost $40??? If so what brand? I was looking at DID gold X-ring's and they were going for about $160!
Any sprocket recommendations would be awesome too

(thinking of just going stock steel sprockets)

longshanks · « **Reply #4 on:** November 13, 2011, 12:49:14 AM »

Quote from: MCRider on November 12, 2011, 02:18:23 PM

Quote from: longshanks on November 12, 2011, 02:03:42 PM
So its time to replace my chain and sprocket on my 750 so I was counting out the links on my chain and it came out to 84 links. I also counted the rear sprocket and I have 40teeth which is way below stock. I don't know the teeth on the front sprocket as I haven't pulled the front cover yet. Right now at 5k rpm on the freeway I clock in a little below 80 with a 120/90-18 rear tire. Isn't stock on a K6 18/48 for the sprockets? and is 84 links way too short? Will I see a big difference freeway speeds/acceleration when going to stock? Here is a video I posted a while ago showing how crappy and stretched out my chain is:

cb750 chain rattle

It's a really crude chain as it seems like it came from a dirt bike.
18/48 = .375. 16/40 = .40, only a little higher. IIRC 5K sb a little more than 70. So if you have a 16 (or a 15) front sprocket, all sounds well.

I'd go back to a 17/48 (=.35) for better chain wear and good compromise between accel and highway rpms. Bout 102 link I think.

Thanks MC!

dhall57 · « **Reply #5 on:** November 13, 2011, 04:45:21 AM »

Shanks, I replaced my chain and sprockets on my 750 K6 shortly after I got it in 2009. What a difference. I stayed with the stock size 18/48 sprockets and got them from Z1 Enterprizes. Went with Hondamans recommendation and got a Diamond 530 chain. Just be sure to replace both sprockets and chain all at the same time to get even wear and best life out of them.

dhall

Spanner 1 · « **Reply #6 on:** November 13, 2011, 07:01:22 AM »

Pure luck with the X-Ring chain , I just walked in to a bike dealer and they had an 'old stock' clearance one on the shelf for $40......

grcamna2 · « **Reply #7 on:** November 13, 2011, 07:22:14 AM »

dhall57,
Can you tell me more about the Diamond 530 chain ? is it standard or o-ring ? I want to know a few more details...& ask Marcia what she recommends.

dhall57 · « **Reply #8 on:** November 13, 2011, 07:27:57 AM »

Spanner, You be surprised at times what dealers still have on the shelves for these old CB's A couple weeks ago I was putting a new shifter shaft seal on my KO and had a brain fart and messed it up. I thought no way is any dealer going to have one of these in stock. So I was just going to reorder one a have to wait a week to get it. But just for the h@* of it I decided to call a few Honda dealers near by and gave them the part# and bingo 2nd one I called had one. Who would of thunk it

dhall57 · « **Reply #9 on:** November 13, 2011, 08:09:38 AM »

Quote from: grcamna2 on November 13, 2011, 07:22:14 AM

dhall57,
Can you tell me more about the Diamond 530 chain ? is it standard or o-ring ? I want to know a few more details...& ask Marcia what she recommends.

Quote from: grcamna2 on November 13, 2011, 07:22:14 AM

dhall57,
Can you tell me more about the Diamond 530 chain ? is it standard or o-ring ? I want to know a few more details...& ask Marcia what she recommends.

sure no problem grc, It's a standard#530 chain, no o-ring. Im looking at the old inv. and here are the two part#'s
Diamond part#XMC-1548-M-102P
Chain part#DIA530RIV-102P
I got the chain back in 2010 so I'm sure it's more now just like every thing else, but I believe I paid around $50 including frt. Diamond Chain is located in Indianpolis,IN, but there is a distributor in my home town Greensboro NC , Kaman Industries that I ordered it from. Called them up #336-333- 9992, paid for it and had me a new chain in a few days del. to my door step. Couldn't be no easier than that. I could of run the 102 link like it was right out of the box, but IMO I thought it set the wheel a little to far back in the adjustment( about half way) so I took 2 links out and that brought it up right near the 1st mark of the adjustment. New conn. link and clip in box also. Hope this helps. Marcia sure is HOT isn't she. The old childhood crush still gets to me

dhall

grcamna2 · « **Reply #10 on:** November 13, 2011, 08:23:08 AM »

Dhall,
It sure does help; we have one of those Kaman places up here but...these Northern prices are not what I want to do.I appreciate those part #'s you gave me because that way I can take them & shop around a bit. How does that Diamond chain wear in a motorcycle application ? I was speaking to a local Industrial supplier up here & he didn't think that it would work for the speeds that the motorcycle would put on it...but,anyway he was just a salesman & not a Tech person.I could try some other local places to ask how it works.The Diamond chain you ordered...did they say it is recommended for full on use with your motorcycle ? I could just keep trying to make sure I get the one that's made for heavy "motorcycle" use,or try a few other "local?" suppliers.
Thanks

grcamna2 · « **Reply #11 on:** November 13, 2011, 08:28:02 AM »

+1 on Marcia

Dave K · « **Reply #12 on:** November 13, 2011, 08:39:15 AM »

I had real good look with Diamond motorcycle chains. BUT, I went to O'ring about 15yrs. ago and will never go back unless I have to. Yes, you pay more for a good O'ring chain, but it is so much cheaper and cleaner running over the long haul. Your mileage may vary, but that is my take on it. I understand that those reading this and thinking about an O'ring chain for their 500/550 4's maybe out of luck. The O'ring chain doesn't have enough side clearance in the cases and will wear a hole in the block. OUCH!

grcamna2 · « **Reply #13 on:** November 13, 2011, 08:57:04 AM »

I can't run an O-ring chain on my CB400F & that's why I want to get the best non o-ring chain I can.HondaMan does recommend the Diamond & I know it has to be excellent...I just want to be sure I get the "motorcycle specific" model.

dhall57 · « **Reply #14 on:** November 13, 2011, 09:09:16 AM »

Quote from: grcamna2 on November 13, 2011, 08:23:08 AM

Dhall,
It sure does help; we have one of those Kaman places up here but...these Northern prices are not what I want to do.I appreciate those part #'s you gave me because that way I can take them & shop around a bit. How does that Diamond chain wear in a motorcycle application ? I was speaking to a local Industrial supplier up here & he didn't think that it would work for the speeds that the motorcycle would put on it...but,anyway he was just a salesman & not a Tech person.I could try some other local places to ask how it works.The Diamond chain you ordered...did they say it is recommended for full on use with your motorcycle ? I could just keep trying to make sure I get the one that's made for heavy "motorcycle" use,or try a few other "local?" suppliers.
Thanks

These Diamond#'s I gave you are for motorcycle applications and will work fine on a 750 if that is what you have, if not these #'s dont' apply. I was under the impression you had CB750. Have no idea off hand what a CB400 would take. But Im sure Diamond would have a application for it also. Like I said I replaced both sprockets 18/48 with the 530 Diamond chain on my 750K6 2 years ago and no problems what so ever and runs smooth and quite. There classified as Diamond Powersport chains.

+++++1 on Marica for sure!

longshanks · « **Reply #15 on:** November 13, 2011, 02:42:15 PM »

Ok so I think I'm going to go with 17/48 sprockets from Z1. Should I get an O-ring chain there too? Can anyone else confirm or deny if its 100 or 102 links for a 17/48 set-up? I'm pensive about Diamond since its non O-ring but the recommendations that come with it make it a hard choice.

grcamna2 · « **Reply #16 on:** November 13, 2011, 03:41:13 PM »

The CB400F also takes a 530 chain,but just a bit shorter...I'm going w/ the Diamond chain when mine wears out.

MCRider · « **Reply #17 on:** November 13, 2011, 03:54:49 PM »

Quote from: longshanks on November 13, 2011, 02:42:15 PM

Ok so I think I'm going to go with 17/48 sprockets from Z1. Should I get an O-ring chain there too? Can anyone else confirm or deny if its 100 or 102 links for a 17/48 set-up? I'm pensive about Diamond since its non O-ring but the recommendations that come with it make it a hard choice.

Generally, you buy 110 links and cut it to fit. Can you buy it at 100 or 102?

dhall57 · « **Reply #18 on:** November 13, 2011, 03:56:02 PM »

Good deal grc, I think you will be happy with it

longshanks · « **Reply #19 on:** November 13, 2011, 06:50:06 PM »

Quote from: MCRider on November 13, 2011, 03:54:49 PM

Quote from: longshanks on November 13, 2011, 02:42:15 PM
Ok so I think I'm going to go with 17/48 sprockets from Z1. Should I get an O-ring chain there too? Can anyone else confirm or deny if its 100 or 102 links for a 17/48 set-up? I'm pensive about Diamond since its non O-ring but the recommendations that come with it make it a hard choice.
Generally, you buy 110 links and cut it to fit. Can you buy it at 100 or 102?

Sure can.

http://www.z1enterprises.com/530-Chain--RK-100-link-X-Ring-376.aspx

http://www.z1enterprises.com/530-Chain--RK-102-link-X-Ring-377.aspx

Is this a good brand to go with? need a recommendation.
thanks,

andy750 · « **Reply #20 on:** November 13, 2011, 06:56:52 PM »

RK chains are fine. I got the same one from Z1 for my CB750K4 and it works well.

MCRider · « **Reply #21 on:** November 14, 2011, 05:19:33 AM »

Quote from: longshanks on November 13, 2011, 06:50:06 PM

Quote from: MCRider on November 13, 2011, 03:54:49 PM
Quote from: longshanks on November 13, 2011, 02:42:15 PM
Ok so I think I'm going to go with 17/48 sprockets from Z1. Should I get an O-ring chain there too? Can anyone else confirm or deny if its 100 or 102 links for a 17/48 set-up? I'm pensive about Diamond since its non O-ring but the recommendations that come with it make it a hard choice.
Generally, you buy 110 links and cut it to fit. Can you buy it at 100 or 102?

Sure can.

http://www.z1enterprises.com/530-Chain--RK-100-link-X-Ring-376.aspx

http://www.z1enterprises.com/530-Chain--RK-102-link-X-Ring-377.aspx

Is this a good brand to go with? need a recommendation.
thanks,

I see.
Stock is 18/48. So a 17/48 would be 2 links longer than stock. (always 2 link increments). I'd look up stock on any microfishy, like motogrid.com.

longshanks · « **Reply #22 on:** November 14, 2011, 10:29:21 AM »

You recommended going 17/48 correct? I looked it up on motogrid.com and I found the drive chain but it doesn't specify how many links:

http://www.motogrid.com/pages/oemparts?aribrand=HOM#/Honda/CB750K_A_(76)_MOTORCYCLE%2c_JPN%2c_VIN%23_CB750-2540001_TO_CB750-2575894/SWINGARM_%2b_DRIVE_CHAIN/CB750K-76-JPN-A/2Y133416F13341619A

Also, should I go with a rivet chain only or get a master link/clip?

MCRider · « **Reply #23 on:** November 14, 2011, 10:43:26 AM »

Quote from: longshanks on November 14, 2011, 10:29:21 AM

You recommended going 17/48 correct? I looked it up on motogrid.com and I found the drive chain but it doesn't specify how many links:

http://www.motogrid.com/pages/oemparts?aribrand=HOM#/Honda/CB750K_A_(76)_MOTORCYCLE%2c_JPN%2c_VIN%23_CB750-2540001_TO_CB750-2575894/SWINGARM_%2b_DRIVE_CHAIN/CB750K-76-JPN-A/2Y133416F13341619A

Also, should I go with a rivet chain only or get a master link/clip?

Thank you for taking me up on the tip. You're right the chain length is not shown on the 76. I popped over the 72 K2 and it's shown as 100L, using 18/48. So you'd need 102 for the 17/48 combo.

Yes I recommend the 17/48. It gives a little more pick up and ease of coming off the line, like in around town traffic, without cranking the revs up too high on the highway. I think the 18/48 was a little overkill for various reasons: chain wear, lower highway revs for less noise and vibration, etc. Honda went back to 17/48 on the 75/76 Fs. They wanted that feel of pep.

I'd go with the clip type link, to avoid having to buy the rivet tool. The clip link will have a press on plate for security, and some ORings that you manually insert. There is a little technique with a pair of vice grips for easily pressing on the sideplate. So no extra tools are required.

scottly · « **Reply #24 on:** November 14, 2011, 10:59:48 AM »

Are you sure the bike is a K6?? The chain length and rear sprocket teeth sound like K7/K8, with 630 chain. These had 15 teeth on the front sprocket. You can verify the chain size by measuring the center-to-center distance on the chain rivets. 530=5/8", 630=3/4".

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Author Topic: Chain length (Read 7911 times)