Rebuilt Puch E50 - still making funny noise - Normal?

Barry (Bob) Brown /

I rebuilt my E50 - new crank, piston, bearings, seals, intake and carb. It start on quarter turn and idles/runs fine but it makes a funny tinny ticking sound. Is it normal or.....?

Re: Rebuilt Puch E50 - still making funny noise - Normal?

Moped Lar (OFMC) /

Did you replace the wrist pin bushing? It’s the most overlooked part when doing E50 rebuilds.

Re: Rebuilt Puch E50 - still making funny noise - Normal?

Barry (Bob) Brown /

Yes sir, came with the new piston. I also replaced crank and it came with new needle bearings and now I wonder if I need a wider one?

Re: Rebuilt Puch E50 - still making funny noise - Normal?

Overpriced Parts /

Chamfer the cylinder ports?

Sounds like a sharp ring is hitting a sharp port

Re: Rebuilt Puch E50 - still making funny noise - Normal?

Barry (Bob) Brown /

> Overpriced Parts Wrote:

> -------------------------------------------------------

> Chamfer the cylinder ports?

>

> Sounds like a sharp ring is hitting a sharp port

i pulled it apart and saw no scoring anywhere - piston looks perfect. Chamfor? Will I need to do that with stock cylinder/head and piston?

If so, I will try it out. thx.

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