YT175 top end.

[angryyoung]

When I pin my yt175 it goes all choppy on the top end. Its not smooth. Does this have something to do with the air/fuel screw?

[Kintore]

You have rich jetting, do a plug chop test WOT and see if its black/oily. If it is your rich, white/dry is lean.

Get back to us on this-

K

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