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Michaelcal141

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Hey so I recently just bought a jap 90cc and when I was riding it a few days ago the stator nut that holds the magnet on the crankshaft fell off.. Well I didn't notice it fall off so I continued to ride.. When I was done I let my friend ride it aroun my block and the little like notch in the crankshaft that has a like ridge? On it. Its basically a thing that keeps the magnet from free spinning when kicking it. well that ridge is gone.. So I was wondering ifthere is anyway around it by like finding something that could go in there to hold it in place? Or being able to take the tiny piece off a non working bike? I just dint have the money for a new crankshaft so any ideas to help me out would he great!!
Thanks!
 

timeeh

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hey mate ive sone that exact same thing on mine :( The way i fixed it is to put in a new key (like hilz just mentioned) they are called a woodruff key and I couldn't see it costing mare than a dollar or 2 (bring in your old one to measure). What i did (cause my shaft ground out pretty good) was use a slightly larger key (fatter) then the original one, then do a little filing/grinding off the slot the key fits in then jam your stator back on n away you go :)
 

timeeh

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I'm soo bored at work so I thought i'd draw some stuff for you.

This will pop out with a screw driver

(Mum always told me i'd be the next picasso.....cause my drawing is good n stuff)
 

Michaelcal141

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Well it's not stuck in the magnet it's just Gone? Hah so imma buy a new one but how did you get yours in? Like did you use like a jb weld or rubber cement or do you just ram it in there??
 

timeeh

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i sat the new one inside the shaft (on the electrics side) then tapped on the stator with a rubber mallet. Normally it would slide on but because of the damage i caused i figured a bigger one would be better. As for where i got mine from, one of my mates had a box full of them (being an ex mechanic). Also just a side note i could recommend putting locktite on the stator nut once it's put back in. Hope that helps :)
 

Michaelcal141

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oh i gotcha haha allrighty thanks for the help! and yes i remember that i had to lock tight the nuts and bolts on my bike after it happened haha
 

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