Minarelli 2 Stroke (1e40qmb) Starter Clutch Issue

[Fahqu2]

Originally Posted by lind9555

Hey Guys-
At a stand still on this one and hoping someone out there may know a little something about these starter assemblies as i'm struggling to find a solution.

I bought a Sinski 50cc scooter (Chinese) about a year back.
It would start up, and continue to run so long as I reved it up and then all of a sudden violently die.
Below are two videos I took of this;




I pulled the clutch assembly apart and the starter clutch was wore to heck.
After a few attempts/purchases to find the right replacement starter clutch I found the starter clutch off of a 2 stroke Zuma was exactly the same as the original. (coincidentally the cylinder is stamped yahmaha)
Once I replaced it with this one it started catching right away as shown in this video;



I had filmed a dissasembly but cant seem to find the video.
I'll try to take a video of that and upload it later this week.

I've been at a dead end for about a year now and hoping to get this back up and running so the lady can get out and enjoy the social distancing via scooter!
Let me know if anyone has any ideas on what the issue could be or any questions.
Thanks in advanced!

The engine dying is an air leak or compression issue which could be piston rings need to be replaced. Starter clutch not sure.

[Big Bill Gilesbie]

did you install it backwards?