bog down...

[pmt racing]

i was looking to get more speed out of my 90 so i out a 21 tooth front srpocket on it.. it now has the top speed i need but the take off is awful now.. any suggestions on picking up the bottom end? its been ported 24mm kehin, 4.5 rollers, 1500 ztr and 1500 clutch springs... my girls race flat track

What size of rear sprocket are you running?

[pmt racing]

running a 32 on the rear, i have a 30 but the front is so much easier to change

U need to work on your clutching you are starting off in second gear what belt are you running?

U need to work on your clutching your have to be starting in 2nd gear. What belt are you running,

[pmt racing]

running the malossi M6112742 on the 90.. im having the same problem on the 50 and i put a 20 front sprocket on it running the bando 780 on the 50

I've never had any luck with that belt and the 780 is just to short to get any top speed out of change both to a 787 16 30 then you will have holeshot and topend good luck.