I bought a '21 Expert turbo last spring with 900 miles on it. I only have 4 days on the snow with it mostly trail riding in the Bighorns with the family, 2 days last spring and 2 this past weekend.
Last spring I noticed several times going from 6000rpm to full throttle it would increase RPM slower than I expected. I thought it was the clutch needing adjustment.
Over summer I replaced the oil pump so I had Big John at SHR prime and calibrate the oil pump and RAVEs. When he was doing that, he also told me the throttle at wide open was 107% and I had no freeplay in the cable. I backed off the adjustment for 1/8" of freeplay. I also bought his clutching. I don't know if any of this plays a part, but FYI.
So now to this past weekend I was playing around with the throttle trying to re-create the condition from the spring and I could. If I'm crusing 6000RPM and go to full throttle, it will climb to 7700RPM in 1-2 seconds and then take another 1-2 seconds to get to 7900-8000RPM. If I start at the same 6000RPM, but go to 3/4 throttle (not squeeze all the way to the bar), it will spool instantly to 8000RPM and I can noticabaly feel it pull much harder.
If I were to put a stop on the bar so the throttle could only go to 3/4 position, the sled would be perfect, running exactly how I expect it to. Any ideas what's going on with full throttle?
Last spring I noticed several times going from 6000rpm to full throttle it would increase RPM slower than I expected. I thought it was the clutch needing adjustment.
Over summer I replaced the oil pump so I had Big John at SHR prime and calibrate the oil pump and RAVEs. When he was doing that, he also told me the throttle at wide open was 107% and I had no freeplay in the cable. I backed off the adjustment for 1/8" of freeplay. I also bought his clutching. I don't know if any of this plays a part, but FYI.
So now to this past weekend I was playing around with the throttle trying to re-create the condition from the spring and I could. If I'm crusing 6000RPM and go to full throttle, it will climb to 7700RPM in 1-2 seconds and then take another 1-2 seconds to get to 7900-8000RPM. If I start at the same 6000RPM, but go to 3/4 throttle (not squeeze all the way to the bar), it will spool instantly to 8000RPM and I can noticabaly feel it pull much harder.
If I were to put a stop on the bar so the throttle could only go to 3/4 position, the sled would be perfect, running exactly how I expect it to. Any ideas what's going on with full throttle?
