So I am hoping someone here can shed some light on this issue. I just bought this sled to get back into the sport after 15 years out of it. I spent the past few weeks going over the machine to hopefully resolve any issues. When I had a chance to take it out for a little test I noticed a high rpm bog. When I get into the throttle it pulls great to about 6500 rpm, I then let off and got back into it and the bog came back at 7000 rpm and got out of it again and back on it for the bog to happen again at 7500 rpm. Thinking that once it cleans itself out after sitting all summer that it would go away I got on it a few more times but the bog never went away. Then when I stopped it would idle at 3400ish rpm. If I hit the choke the idle will come down to 1200ish rpm then when I flip the choke off it comes back to 2000 rpm. While checking over the sled I did check out the jetting, it has 490 mains and needles in the 3rd clip which is correct according to SLP's web site (it has twin SLP pipes). I contacted SLP to verify the info and there take on the situation is that if my fuel has ethanol in it then I am lean but this fuel should not have any ethanol. It pulls great in the midrange and runs great other than this issue. Not sure if this has any bearing but when it was sitting in the garage and I filled it with fuel (Shell premium with a good dose of Sea Foam to clean it out), I come out the next morning to find a bunch of fuel on the floor and the motor hydro locked. So I pulled the carbs out and cleaned out the floats and bowls. This has not happened since so I am assuming I fixed it. Any help with this would be appreciated. Thanks
2005 RMK 800 bog at 7000 rpm
- Thread starter Saltwater Cowboy
- Start date
Might be your clutch is not back shifting, causing it to bog once you let off and get back on it. Clean and service both clutches, might just solve it
Idle issue is fixed just out of adjustment. Clutches were off and gone through last year they aren't a problem. Seems to me that it is running really rich at the top end. Did these sleds come with an altitude compensating system and if so could this be giving me grief?
They are set-up VERY rich from the factory, I had to go down four jets from stock.
C
chadkrump
Active member
Oiler
Had a buddy having the same issue. Found the oil pump arm was stripped out and it went to full oil all the time. Would run great down low, but wouldn't make top Rpms. Once we changed pumps, it ran great. We chased the same issues you are having and tried virtually everything. Check your pump
Hope this helps
CK
Had a buddy having the same issue. Found the oil pump arm was stripped out and it went to full oil all the time. Would run great down low, but wouldn't make top Rpms. Once we changed pumps, it ran great. We chased the same issues you are having and tried virtually everything. Check your pump
Hope this helps
CK
3000 feet. SLP's site says 490's with their twin pipes. I went right through the carbs tonight and think I found one if not the problem. The floats were not the same so I went digging. Turns out someone installed a float for a 600 in one carb. They almost look the same but different part #'s. I will test it out tomorrow.
So I got to test it today. After it warmed up pulled a couple wide open runs and it seemed to get better on each run. After 2 or 3 runs across a field it would pull right up to 7500 rpm and still climbing, but I ran out of room. Ran great after it cleaned it self out. But if I let it idle it would bog for a run or 2. I will be checking out the oil pump and getting the air and fuel screws adjusted. Seems rich on idle but jumps right out of the gate when you open it up. Hopefully after that it is all good.
