SOHC.co.uk Forums > CB500/550

500K2 engine rebuild. Newbie questions

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ebmbiker:
Cheers for the drawings and info guys. This really is a very helpful forum!

I’ll try and find a 650 tensioner before I make the bracket. I reckon once everything is replaced in the primary drive it will be good for years to come as I won’t be doing lots of mileage. The one thing that I’m picking up from reading the posts on the forum is regular oil change, and using good quality oil.

philward:
I also think you should consider how your bike will be used and mileage you will be do. My American inport 500k2 (with 11000 miles indicated but not authenticated - so at least that mileage I would guess) had no marks on the cases. I replaced the chain/dampers but I am unlikely to get that mileage on the bike before I snuff it so probably not worth me doing the mod.
There's a few members on here who have done 100,000 plus miles and would be interested to see what their cases are like? I will vary with use and maintenence I suppose

murdock:
 aqui hay un poco mas sobre el tensor

here is a little more about the chain tensioner

                                                                                                                   
                http://www.sohc.co.uk/index.php?topic=11741.0

Oddjob:
Old topic I know but I was looking at some old Kwack primary chains today and noticed that the ZX600 I think it was also had a primary chain tensioner fitted that looks a lot like the CB650 one, it may not be identical but it could be made to work I reckon.

https://www.ebay.co.uk/itm/203865918192?hash=item2f775b0af0:g:JYcAAOSwMS9iLNR~

https://www.ebay.co.uk/itm/373566567673?epid=1323120587&hash=item56fa4d74f9:g:ltoAAOSwFFhgkKt2

Oddjob:
Managed to spot and buy a 650 primary chain tensioner today. It came with a knackered primary chain, of course it may not be knackered but seriously who'd take a chance fitting an old one.

I'll now bung the tensioner and bracket on Ebay unless someone on here wants to buy them both.

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