Re: Drive sprocket wobble

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> Mike Flynn Wrote:

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

> Would bad engine bearings cause the moped to mis/backfire at around

> twenty? Also my friend thought it was a blocked exhaust, so he took it

> off, it went over 20mph, did 31. But as soon as it hit 20 the exhaust

> noise went from deafening to almost normal.

Sounds like your pipe needs an oven cleaner treatment . That should bring it back to something 'normal' .

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