2007 TRX 420 TE7 (electric shift)
Have read allot of things hear that kept my bikes running, but now have an issue where i need to post. as soon as the bike is put in gear, it takes off. I'm stumped somewhat.
The back story: kid sunk it and let stall. drained, filled, and drained again. changed oil every 25 hours so the first year. still, almost two years later it started smoking and was getting worse. So, pulled the entire engine, split the cases, clean everything, reassembled per shop manual, and finally fired it up this past weekend. All was good until i i hit the shift button to go to 1st and the thing jumped forward like a rocket. Does the same thing in reverse. If i hold the brakes, i can stall the engine. Based on what i've read here and in the manual:
1. I pulled the front cover off tonight and verified the centrifugal clutch spins freely counter clockwise but doesn't budge when turned clockwise (I assume put in the correct way)
2. with rear wheels off the ground, started it up, put a wrench on the manual shift on the front of the engine and pulled up. back wheels start to slow down. when i release, the wheels engage again. also, notice the gear indicator in the display blanks out until i turn the key off then back on. maybe that's nothing. (i assume the clutch pack / disks are ok....maybe?)
3. While off, i can cycle the shift buttons up or down and go thru all 5 up, all 5 down, into reverse, and neutral (having to rock it now and then to get it to fall in gear. normal based on past experiences with Honda's).
4. While running, and rear tires off the ground, i can perform #3 with no issues or noises that seem out of the ordinary.
5. I've re-adjusted the adjustment screw per manual (turn until resistance, then 1/4 turn off) then tightened the lock nut.
My initial hunch was i had the 1way bearing in wrong for the centrifugal clutch. Now I'm wondering if the problem lies in the clutch disks themselves. So at the time. i cleaned them and put a smidgen of regular oil on them, then put them back in the bike. then it sat for a few weeks until i get back to it. I don't recall pulling those disks back out and soaking in oil made for wet clutch applications for a few hours. And yes, i do plan on getting new set of disks now that i have the front cover back off again, but if possible, i would like to make sure the thing doesn't take off like a rocket when put in gear first; if that means i destroy the current set trying to figure out what's wrong, i'm ok with that.
I'm open to any thoughts or suggestions. Thanks
Have read allot of things hear that kept my bikes running, but now have an issue where i need to post. as soon as the bike is put in gear, it takes off. I'm stumped somewhat.
The back story: kid sunk it and let stall. drained, filled, and drained again. changed oil every 25 hours so the first year. still, almost two years later it started smoking and was getting worse. So, pulled the entire engine, split the cases, clean everything, reassembled per shop manual, and finally fired it up this past weekend. All was good until i i hit the shift button to go to 1st and the thing jumped forward like a rocket. Does the same thing in reverse. If i hold the brakes, i can stall the engine. Based on what i've read here and in the manual:
1. I pulled the front cover off tonight and verified the centrifugal clutch spins freely counter clockwise but doesn't budge when turned clockwise (I assume put in the correct way)
2. with rear wheels off the ground, started it up, put a wrench on the manual shift on the front of the engine and pulled up. back wheels start to slow down. when i release, the wheels engage again. also, notice the gear indicator in the display blanks out until i turn the key off then back on. maybe that's nothing. (i assume the clutch pack / disks are ok....maybe?)
3. While off, i can cycle the shift buttons up or down and go thru all 5 up, all 5 down, into reverse, and neutral (having to rock it now and then to get it to fall in gear. normal based on past experiences with Honda's).
4. While running, and rear tires off the ground, i can perform #3 with no issues or noises that seem out of the ordinary.
5. I've re-adjusted the adjustment screw per manual (turn until resistance, then 1/4 turn off) then tightened the lock nut.
My initial hunch was i had the 1way bearing in wrong for the centrifugal clutch. Now I'm wondering if the problem lies in the clutch disks themselves. So at the time. i cleaned them and put a smidgen of regular oil on them, then put them back in the bike. then it sat for a few weeks until i get back to it. I don't recall pulling those disks back out and soaking in oil made for wet clutch applications for a few hours. And yes, i do plan on getting new set of disks now that i have the front cover back off again, but if possible, i would like to make sure the thing doesn't take off like a rocket when put in gear first; if that means i destroy the current set trying to figure out what's wrong, i'm ok with that.
I'm open to any thoughts or suggestions. Thanks
In fact, IMO, the clutch pack has to be the cause of my issue just because the centrif clutch appears to be fine. I guess this week I'll have to break down and take both clutches off and give the disks and assy a good look over to make sure i haven't missed anything.
