Vintage and Classic Hondas

Primary chain tensioner

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Kirk Creswick

Primary chain tensioner

I'm replacing anything rubber during my rebuild of my 1980 CB 750 F, but I've found that some items such as the primary chain tensioner are difficult if not impossible to find as NOS.

What are you doing when it comes to assessing the primary chain tensioner?

Where can replacements be found?

There are three paths to knowlege:
Imitation is the easiest
Reflection is the noblest
Experience is the bitterest
Confucious

shinyribs

Re: Primary chain tensioner

Administrator

Bump.

LukeM

Re: Primary chain tensioner

Administrator

In reply to this post by Kirk Creswick

I was lucky enough to find both the primary and secondary cam chain tensioners at a local MC junkyard. Rice Paddy in Columbus OH. I think I paid maybe $20 for both. They didn't look too worn, compared to the ones I took out of mine. Most of the plastic/nylon on the old ones was gone. Probably what killed my cam chain.

I'm sure there are some used parts out there that are serviceable. Just have to ask around, and keep digging.

Luke M

Used to have a 1979 CB750L, sold it as a parts bike, now riding a slightly modified 1984 VT700C. Network/Field Engineer. Central OH, USA, Earth, Sol System, Milky Way Galaxy, Universe.

Lucky 1

Re: Primary chain tensioner

In reply to this post by Kirk Creswick

Do you mean cam chain tensioner???

There is no primary chain tensioner as far as I know of.

On a Roadstar Adventure.

Lucky 1

Re: Primary chain tensioner

In reply to this post by Kirk Creswick

Maybe you should go over to the DOHC website. They would know more.

On a Roadstar Adventure.

pat english

Re: Primary chain tensioner

In reply to this post by Lucky 1

if you split the cases,there is a another chain tensioner inside..

pat english

Re: Primary chain tensioner

In reply to this post by Kirk Creswick

here you go bud..wasnt to hard..plenty to choose from...

http://www.ebay.com/sch/i.html?_trksid=p5197.m570.l1313&_nkw=cb+750+primary+chain+tensioner&_sacat=0

TOOLS1

Re: Primary chain tensioner

Administrator

In reply to this post by Lucky 1

Lucky 1 wrote

Maybe you should go over to the DOHC website. They would know more.

This is a DOHC web site!!!!!!!!!
TOOLS

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1976 CB 750-A X 2
1977 CB 750-A X 4
1977 CB 750-K
1976 CB 750 F
1981 CB 750
1966 Kawasaki SG 250
1981 KZ 750 LTD
1973 CB 350
1979 CM 185 Twinstar
1982 Honda XL 80
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Kirk Creswick

Re: Primary chain tensioner

In reply to this post by pat english

Based on the replies so far, it appears that used is the only option.

The ones on eBay look about as good as mine.

There are three paths to knowlege:
Imitation is the easiest
Reflection is the noblest
Experience is the bitterest
Confucious

Kirk Creswick

Re: Primary chain tensioner

In reply to this post by LukeM

Rubber and plastic do not fair well in Arizona junk yards!

There are three paths to knowlege:
Imitation is the easiest
Reflection is the noblest
Experience is the bitterest
Confucious