Gilera storm/Piaggio typhoon 70cc kit help?

[speedjunkie06]

Hi there,

I recently put a 70cc kit into my gilera storm, the kit was a pm tuning x-tech 70cc, I was advised to put either a size 90 or 88 jet in the carb, I have done so and run the cylinder kit in by 200 miles, however my moped is now slower than it was when I had the standard cylinder in? I have since been told the jet size may be wrong and was wondering if you guys would be able to help me narrow down what size to put in. If it helps I have a blue polini sponge air filter aswell as the leo vince zx sports pipe. Thanks for any help

Alex

[ms51ves3]

Have you experimented with the rollers?

You need the correct weights so that they hold the engine in the powerband.