I have a 1980 puch sport MKII and i have a 20 tooth front sprocket coming along with a proma circuit pipe 15mm bing carb and 15mm intake and high flow filter. My question is after i get it tuned what kind of top speed will i be looking at? And i know the circuit exhaust isn't a top speed exhaust.
40+.
with a 20 tooth front U will be lucky to get moving at all but if you do get up to speed you should be going like hell, 16 tooth is big enought
It's a two speed. You'll be fine with the 20 tooth.
did you get jets? I'd start in the upper 60's or low 70's and work down.
We will see now wont we?
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