Knowing when a camchain is due for renewal?

redrocks · Post by **redrocks** » Tue Apr 22, 2014 2:54 pm

Apologies for yet another question.....my bike has 31,000+ on the clock. I guess it sounds a bit "rattly" to me (but might be quite normal of course) - could this be the camchain at all and is it possible to check this and / or the tensioner? I've been tempted to check the valve clearances too. Prior to getting the bike about 18 months ago, i don't think it had been particularly well maintained so i'm still working through various "jobs" !!
Andy

wonkiwheel · Post by **wonkiwheel** » Tue Apr 22, 2014 3:05 pm

My ace was rattley when i bought it so decided to check the tensioner, quite a straight forward job, found out it was stuck. Take the big centre bolt out of the tensioner first before the two smaller holding bolts to assess how far the tensioner has gone. Degunked and replaced the gasket, voila quiet as a mouse (except for my noisy clutch!!!)

redrocks · Post by **redrocks** » Tue Apr 22, 2014 5:47 pm

Will the tensioner re-set itself once its reinstalled - the manual does say to remove it completely then re-install?
Andy

wonkiwheel · Post by **wonkiwheel** » Tue Apr 22, 2014 5:56 pm

Yea, I just reversed the removal procedure, you can hear it clicking/tensioning when installing the large bolt and springs. Like i say its pretty straight forward, even i could do it, although i did try to put it back in the wrong way round!!!!

wonkiwheel · Post by **wonkiwheel** » Tue Apr 22, 2014 5:59 pm

https://www.youtube.com/watch?v=wrcsFF7az1Y

YAMAEXUP · Post by **YAMAEXUP** » Thu Apr 24, 2014 11:07 pm

If you do a full service ie. shims, air filter, plugs etc then balance up the carbs this may well get rid of most of your clutch rattle.

My '90 Exup has 50k+ on the clock & sounds sweet, so unless you've run it short of oil, I doubt that the cam chain needs replacing.