I just put together a 87 TRX 250R with a completely new 320 stroker and my first run to the dunes has me scatching my head a bit. The jetting seems dialed in and over all it ran very good but the rpm range to get to the power band seems high, which made it hard to pull the hills in second gear. It would bog down unless I kept on the clutch and that usually meant that I had to go faster than I wanted to. Is it possible to change this with the jetting or do I have the wrong pipe or.... do I gear down? I'm running a Pro-Circuit Platnium pipe.
Any advise out there?