whistling motor

beentryin

beentryin

New Member
i ran my motor about 20 miles today brought it home and took it out about 3 hours later.and it has a whislte to it sounds like its coming from the clutch
 
beentryin said:
i ran my motor about 20 miles today brought it home and took it out about 3 hours later.and it has a whislte to it sounds like its coming from the clutch
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I notice these same sounds as well. It's not the clutch gears but when I travel at higher speeds the engine "whistles" loudly. Is this really the sound of an air leak?
 
One of my PK80's devoloped a "whistle" after about 100 miles, more of a gear "Howl", looked it over, the keyway on the small pinion gear seemed to be jammed up, removed the loc screw, used a bit of loc-tight{blue), put a new keyway on, has not been back since. Hope that helps.
Mac
 
mine really screams. i have a bigger intake, carb, and expanssion chamber exaust, with a billet head. i think it might just be the air being sucked in to the carb.
 
Did you put a finger tip size dolop of grease on the small gear that drives the clutch gear?(inside the clutch cover)
 
psprat496 said:
Oh, we'll that's most likely the sound of your clutch engaging. When you pull your clutch is it easily pulled or stiff?
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its alway been kinda stiff,but its a smooth stiiff if you know wat i mean.i greased the small gear a few days ago,do i just pull the bar out and put grease on it?
 
it honestly just sounds like the clutch cover, where the gears are located. trying holding your hand on it, hear it that dampens the vibration. You can buy a cover that dampens the noise and wont hear a screech or whistle. ""sickbikeparts"" pretty sure.
 
Yes ,just a mild greasing ,all over it............Idle was why I thought of the bucking bar and ball ,under the cover w/the clutch lever in the center of the drive gear,,,a clutch cover damper (above) sounds good too.......If it doesn't stop,you might try small squirts of WD-40 where the intake manifold bolts on,, and carb. conector,etc looking fot a whistling air leak.
 
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