sand rocket Posted April 12, 2004 Report Share Posted April 12, 2004 This week end i finally had a chance to ride with my new ported motor. It has alot more power up top. But im having a mid range problem. If im riding i 3rd gear 1/2--3/4 throttle in the powerband it runs sweet, it you let the revs down just enough to loose the band and hit the gas to bring it back up it bogs. If you pull the clutch and rev and dump the clutch it will scream back into the pipe. Plugs look like a dark redish brown. Builder said that i should adjust the needle, any suggestions? Also, a gearing question. a bigger front sprocket will spin the tires faster but you will have less top speed, Is this right. Or do i have i backwards. And the back would be reverse, small spins faster but less top speed? Quote Link to comment Share on other sites More sharing options...
streetshee Posted April 12, 2004 Report Share Posted April 12, 2004 no, the other way around,a bigger front sprocket will give u more top speed,1 bigger on the front is about the same as 2,7 smaller on the back Quote Link to comment Share on other sites More sharing options...
sredish Posted April 12, 2004 Report Share Posted April 12, 2004 This week end i finally had a chance to ride with my new ported motor. It has alot more power up top. But im having a mid range problem. If im riding i 3rd gear 1/2--3/4 throttle in the powerband it runs sweet, it you let the revs down just enough to loose the band and hit the gas to bring it back up it bogs. If you pull the clutch and rev and dump the clutch it will scream back into the pipe. Plugs look like a dark redish brown. Builder said that i should adjust the needle, any suggestions? Yep, adjust the needle. With the port, you could probably be on the 5th clip from the top/blunt end. Normally, I suggust the 4th clip with just pipes. That will help the mid. Also, a gearing question.a bigger front sprocket will spin the tires faster but you will have less top speed, Is this right. Or do i have i backwards. And the back would be reverse, small spins faster but less top speed? You have it backwards. Bigger front = higher gearing / more top speed Smaller front = lower gearing / less top speed Opposite for the back. Stock is 14/41 in the newer models, and I'm running a 15/41, so it's geared up. I ran 15/42 in the dunes and it worked well. Quote Link to comment Share on other sites More sharing options...
sand rocket Posted April 12, 2004 Author Report Share Posted April 12, 2004 Bigger front = higher gearing / more top speed Smaller front = lower gearing / less top speed Opposite for the back. Stock is 14/41 in the newer models, and I'm running a 15/41, so it's geared up. I ran 15/42 in the dunes and it worked well. less top speed also = more torqe? Quote Link to comment Share on other sites More sharing options...
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