Name that moped sound

Michael Dreamboat /

I don't really hear it when going at higher speeds but when I'm slower or at a stop I've been hearing a sound that's almost like popcorn popping. Anyone know what this could be?

Re: Name that moped sound

Patrick Keaton /

The connecting rod bushing that the piston pin is connected to might have wear, which can causes a noise.This is more of a nuisance noise than an engine problem, untill the noise worsens.

Re: Name that moped sound

Michael Dreamboat /

I'm figuring it's an inevitability though, the noise worsening thus the piston worsening?

Re: Name that moped sound

Michael Dreamboat /

If I got a kit sometime soon would it come with connecting rod bushings ?

Re: Name that moped sound

Michael Dreamboat Wrote:

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> If I got a kit sometime soon would it come with

> connecting rod bushings ?

no. you would have to upgrade your crankshaft to a roller bearing one, or have a new connecting rod pressed in. you can also get a replacement bushing from treats or 77mopeds or wherever you get your kit from.

Re: Name that moped sound

Michael Dreamboat /

Ahhh, well a new crankshaft is highly recommended for new kits on 30 yr old plus stock bikes, yeah? At least it seems so looking at newbie kit threads around here.

I'll try to study the manuals and wiki some more to try to understand.

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