Crank is not moving on za50 help

It was idling for 10 seconds when I heard a click noise and it shut off. Now it won’t turn over and after I took it apart the cranks seems stuck, is a za50 worth a rebuild?

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Re: Crank is not moving on za50 help

Moped Lar (OFMC) /

You seized the motor. Was there oil in the gas?

Re: Crank is not moving on za50 help

You can rebuild the ZA with an aftermarket crank and do bearings/seals while you're there but you'll need to deal with the shimming. Or sell the ZA (still lots of good tranny parts in there people need/like to have extras of) and fund an e50 with the funds. A lot easier if its your first motor rebuild

Re: Crank is not moving on za50 help

Did you replace the shift pucks when you got it? Transmission fluid? Pre-mixing 50:1? If the conrod is not moving you either seized your big end bushing or your clutch side of things has major issues

Re: Crank is not moving on za50 help

jacob campbell /

Yes 50:1

Re: Crank is not moving on za50 help

Did you have the clutches out to flip second? The clutch nut may have backed out.

Re: Crank is not moving on za50 help

doesnt sound seizy to me, Now whens the last time a motor been burned up idling, ok lots but theres no piston damage so it couldnt been that hot. open up the covers something probably jambed.

Re: Crank is not moving on za50 help

Probably Fred /

Check flywheel side first

Re: Crank is not moving on za50 help

Exactly, coil came loose maybe and jammed the flywheel or something like a nut, screw, washer is stuck in the fly wheel

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