View Full Version : adjusting primary chain tension
5th September 2011, 20:35
Okay, I don't log in here that often no more (sold the bike 4 years ago and missing it) but glad to see the tension procedure still helps a few people, and applies even to the newer bikes.
5th May 2012, 15:15
Ok I've been struggling with this for awhile trying to get it right ... Hero thank you 5 minutes with an Allan key and a 7/8s just made my bike shift like brand new !! I've adjusted it so many time to either have a clunk hard as hell or have it whine loud as hell !! This was awesome !!
16th September 2012, 23:42
Yes, with the back tire lifted and the engine running, tighten the tensioner until you hear a whining noise, then back it off until the whining goes away, maybe 1/8th turn more. Tighten the nut and your good to go!
5th December 2012, 19:21
By 'loading up' I mean slowly increase the preload on the tensioner. No need to have the rear wheel turning or even on a lift. Only the engine running, as the whine is audible with the bike standing still. Might be an even clearer whine if you GENTLY twist the throttle between each turn of the adjuster. Take it for a testdrive after, & take the 2 adjusting wrenches with you, coz if you got it wrong, it's only a matter of slackening the locknut & making a fine tuning. Saved me a lot of time in the past.
I know this post is a bit old but i just wanted to share how well this method worked for me. Took me all of 15 mins. With the bike hot and running and primary chain under to much tension you can clearly hear the "whine" give it gas and you can really hear it. Anyways backed of the tension untill the sound was gone locked it all down and wah lah! My bike has never shifted so solid and smoothly.
5th December 2012, 19:25
An oldie but def a goodie! Stefs method is the only way I've ever done this adjustment!
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