Author Topic: Need new chain  (Read 747 times)

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Offline Kustomizer

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Need new chain
« on: March 07, 2015, 06:39:25 am »
Just wondering what length chain I need to get for my 1976 CB750?

Offline Ravie

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Re: Need new chain
« Reply #1 on: March 07, 2015, 04:46:52 pm »
Do you have the old one?  If so, measure it. If you have 17/48 sprockets it may have been a 100 link chain. You could do a 102 safely with that setup. Mine had a 100 link on it so that's what I'm replacing it with.

I'm using a D.I.D. (Daido) chain, but I've read Diamond recommended several times.

After much reading, I would personally not recommend O-ring type chains. Seem like more trouble than they're worth and you get less HP to the rear wheel. No thanks.
1975 CB750K5 Rebuild in progress.
http://forums.sohc4.net/index.php?topic=139072.0

Offline guitarkev66

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Re: Need new chain
« Reply #2 on: March 07, 2015, 05:48:41 pm »
Yes I too heard Diamond chains are very well built but very pricey.  I just had a fellow very knowledgable sohc4 forum member tell me he went o ring for his restored K1 and loves it no maintenance.  530/102link
1970 K0 CB750 JDM Blue
1972 K2 cb750 Gold
1970 K0 cb750 Blue
1970 K0 cb750 gold
1970 K0 cb750 red
1971 K1 cb750 gold

Offline MCRider

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Re: Need new chain
« Reply #3 on: March 07, 2015, 06:23:25 pm »
Easy decision: Do you intend to ride a lot, like more than a couple thou a year, and in multi hundred mile bites? and: Do you hate to get your hands dirty while on a trip? You'll love the ORing chain. The mileage rob is a point of contention. Google the issue and you'll get results all over, many saying there is no loss.

All modern production motorcycles that use a chain, use an ORing chain. ANd many of them are very horsepower conscious.

I was once a non believer, but having been experienced to one, on my hawkGT, I'll never go back. OVer 25,000 miles without an adjustment, and very little chain lube.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline Kustomizer

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Re: Need new chain
« Reply #4 on: March 07, 2015, 07:44:21 pm »
Great, thanks for the info!

Offline flybox1

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Re: Need new chain
« Reply #5 on: March 07, 2015, 08:17:42 pm »
For my F3 (17/48) I bought a 110link 530, and cut 4-5 to get the length I wanted.
'78 750K (F3 engine) PD42b's, Modified airbox w/K&N  filter, 40/110 jets, 1 needle shim, IMS@ 1 turn out. Kerker + Cone 18" QuietCore

Past Bikes
1974 550K0 (stock), 1973 CB350F (stock), 1983 Yamaha XS400K (POS)
77/78 cool 2 member #3
"Knowledge without mileage equals bullsh!t" - Henry Rollins

"This is my CB. There are many like it, but this one is mineā€¦"

Offline PeWe

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Re: Need new chain
« Reply #6 on: March 08, 2015, 12:31:52 am »
My CB750K6-76 has allways got 100 links. Last chain is a DC chain, 530 MZX Heavy Duty QX-Ring Gold with really tough solid master link. The same chain today has hollow link which is MUCH easier to rivet. The solid link need a special too, very expensive while the hollow link does not need much force so the cheap tool can be used.

I know since my first cheap tool broke, link still not riveted by the tool, a DID copy. I had to purchase an expensive Whale tool that hammer the rivet end.
Go for hollow link, buy 1 or 2 extra master links. Easy to rivet too hard .
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 MCRider

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Re: Need new chain
« Reply #7 on: March 08, 2015, 07:20:37 am »
Most ORing chains have an alternative clip link. The side plate still needs to be pressed on, but it can be done with a pair of nuts and some vicegrips. Other than that, the clip type is a cinch to install.
Ride Safe:
Ron
1988 NT650 HawkGT;  1978 CB400 Hawk;  1975 CB750F -Free Bird; 1968 CB77 Super Hawk -Ticker;  Phaedrus 1972 CB750K2- Build Thread
"Sometimes the light's all shining on me, other times I can barely see, lately it appears to me, what a long, strange trip its been."

Offline PeWe

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Re: Need new chain
« Reply #8 on: March 08, 2015, 09:49:50 am »
I never had any problem with the old clip type. I used DID 50HDS o-ring chain
No need of expensive riveting tool. Easy to remove chain too.
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