Jet size

[ContemporaryMod]

Picked one of these up for £50,
for my 1961 VBB 150, its standard with standard exhaust at the mo, just wondered what size to upjet to of, if anyone has fitted one.
Not expecting a great deal from it tbh, thinking of getting a SIP Abarth one later, but thought would give this a go for now. May even pop it on my PX.

[coaster]

You could try going up one size on the main but that exhaust isn't likely to increase your perfomance to that extent, better safe than sorry but you might need to change it back again if it's too rich

[C*NTSPEED]

i bet the new exhaust actually makes the scoot slower than when the standerd pipe was on tbh!

[coaster]

i bet the new exhaust actually makes the scoot slower than when the standerd pipe was on tbh!

I thought the same although if the old one is carbonbed up it might make a bit of an improvement.