Re: Garelli Gran Sport -need some speed

DrGeorgeTompson (Alan) /
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Ben Whittle Wrote:

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> Upjetting doesn't

> help a stock bike, especially since most came a

> little rich out of the factory (can't speak for

> all though.) It only adds more fuel into the mix

> when something is changed such as a higher flowing

> air filter. More air in the motor will need more

> fuel to burn with it, see?

garellis were actually jetted lean out of the factory. They are also notoriously hot motors.

iirc, i had a 50 in my stock 14.12 carb, filter, and air box. even with a SHA 15.15 on stock intake and a pipe i think i was at 53 or 54. 65 is kinda crazy. my polini 70cc with the same 15 SHA and stock intake is only at 66. but If you ask me, it's hard to tell when the stock NOI is 4 stroking.

If you want more speed, get a pipe and maybe a filter and upjet like 1 or 2 from stock depending.

If you are actually at a 65 jet, i would check that thing for leaks, cause that seems way wrong.

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