500K2 engine rebuild. Newbie questions

[Oddjob]

Ok here Phil.









I've included the 650 primary chain tensioner in the last 2 pics so you can see what to look for. One bracket is attached to it.

[murdock]

here it is all



http://forums.sohc4.net/index.php/topic,80690.25.html

[philward]

Thanks Ken and Murdock

[murdock]

la parte dificil es conseguir el tensor

the hard part is getting the tensioner

[Sesman]

Indeed it is. I couldn’t readily find a tensioner so decided against the mod.

[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.