hi i got a problem with my gilera runner 172, it doesnt seem to want to go faster than 70mph? ive got: ported 172 with gold billet head malossi 52mm crank pm tuning variator with 13g rollers malossi belt polini clutch with pm tuning clutch bell primary and secondary gear up kits delorto 25mm carb with 105 main jet, 50 (the small 5mm jet), 60 pilot jet i think? the long 1 and dunno the other 1 malossi air filter pm tuning manifold malossi reed block malossi cdi unit pm 360 pipe koso clocks the problem i have is when i get to 60-70mph that bike dont want to go any faster which it should because my old runner didnt have half the parts this bike has and that did over 100mph on road? can any1 help with any suggestions? thanks
Have you tried crouching down so your more aerodynamic? With my limited mechanical skills that's the only advice I can offer. 100 mph is impressive though !!!
thanks for the replys, ive got koso clocks (weather there any good?) anyway when i get to 3/4 throttle the clocks will say 8500-9000 revs and when i give it more throttle it dont seem to wanna go any faster, when i first bought the bike the revs did go higher to about 11000-12000 easy does any1 else have any problems with koso clocks?
Try lightening the rollers slightly to allow the engine to rev higher. What weight were the original rollers that were in the bike?
