Question about Honda Motorcycles
My CBR600 F(P) '93 has a very loud knocking noise when I'm accelerating from low revs, in all gears. It sounds like someone is hitting the frame with a hammer, about twice a second. I've had the clutch and cam chain tensioner out and they appear to be fine. Any help would be much appreciated....
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Posted on Jan 02, 2017
Locate the tensioner locknut on the right-hand cilinder (bottom): -keep the engine idling for about two or three minutes -loosen the locknut about two turnes while idling -the chain tensioner will slide into the proper position -tighten the locknut to secure the tensioner position and stop the engine -repeat every 3000km or 2000mls
Posted on Nov 10, 2008
SOURCE: Loud Intermittent Droaning Noise
rear axle to ring gear side bearing is loose due to weak preload. might be able to locktight is its not to late. was in bmwmoa memeber mag this month december08
Posted on Dec 08, 2008
SOURCE: Grabby clutch in 1st.
I'll bet you replaced the "fiber" plates only in which case you need to either take the steel plated out and have them sand blasted, or preferably "glass beaded", you have a hot spot on one of the plates which is causing the clutch to be "grabby" also not sure if you replaced the clutch springs but if you did and they are after market they may be to high of spring pressure.
Did you install a stock clutch or a after market one? Many times the after market hi-performance clutches are made with aluminum plates and then they add the fiber and the clutch will chatter because the engine HP to to substantial for the aluminum to handle. I highly recommend using the stock Yamaha clutch plates and springs. They are of the highest quality and are the best to use.
Please let me know what type of plates you are running and I'll work from there with you. Also if you cannot get the plates blasted you can take them out and rough them up on your garage floor. Your want to use even pressure and move in a circular motion to scratch them up. Make sure you clean them afterward in mineral spirits. You can buy that at any paint store real cheap.
Posted on Dec 12, 2008
It sounds like the primary drive chain is loose. The way I adjust mine is to take off the upper left inspection cover, start the bike and slowly tighten the adjuster until it starts to wine, then back off until it stops. Rev it slowly and listen for a wine. No wine good to go.
Posted on May 07, 2009
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