Engine help

markb

New Member
Oct 10, 2010
25
0
0
east ayrshire,scotland
Bought a cheap stock blaster last week Had seen on a couple of threads on here before i bought it there quite noisey engines,so i went and seen it had a drive on it etc...
The problem is it makes a knocking noise when its idleing,the noise go's as soon as you give it a rev it has loads of power compresion etc
Another thing i took the oil cap off and i can move the flywheel side to side Think its time for a rebuild?
 
yes, the crank bearings are shot, time to split the cases and go through the thing. new bearings/seals throughout
 
holy crap i need to read closer lol


you were probably moving the clutch basket, that's not good either....



time to tear her down and check it out
 
ok. Now I understand. Your either missing a spacer or washer on the clutch side or it is not torqued down and the nut is coming off. Your weird sound might be that clutch assembly moving while you are riding.
 
Someone else already posted asking about the knocking sounds. My guess is your just not used to the sound of these 2 strokes. Take a look at this video and let us know if yours sounds the alike.
 
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