I have a 06 900 rmk with 151. Was rideing sun on some trails and after about 50 miles my sled backfired. Temp was running around 130 then went up to about 170. I stoped and checked and my slide kick scratchers had turned and stoped working spraying snow so i fixed them then i never ran over 130 degrees again. Then i was crusing about half throttle and it started to bog I let off and then went to 3/4 throttle and it took off hard and boged again then ran at 1/4 throttle and it seemed normal. 10 miles later I got on it and it did the same thing. It seemed to come out of it by the time i got back to truck. Put a hundred miles on or so total. I cleaned my valves 150 miles ago. I noticed alittle bog at half throttle when i was riding in some deep powder the time before but thought that might be a clutching issue. Had a pretty hard landing begining of the ride on sun. My question is could a wire have shaken loose? Could it be the oil cable? Should i check the throttle body boots? Or do i need to go straight to compresion? Sled has about 500 miles on it.
sporadic miss
- Thread starter anderson
- Start date
Bogg
The first time, I would say you hit the temp retard function. When they get too warm the VDI retards the iming and they will miss. If it continues to get hot then the light will come on and it may even shut down. Other times may be due to water in the fuel. Polaris recommends use of Carbon Clean Plus on the Dragons now if you are using fuel without ethenol. I would try that and ride it before I did much to it. Wouldn't hurt to check wire connections though. Same with boots. Check plug wires and boots too. Oil pump cable will not make it miss.
The first time, I would say you hit the temp retard function. When they get too warm the VDI retards the iming and they will miss. If it continues to get hot then the light will come on and it may even shut down. Other times may be due to water in the fuel. Polaris recommends use of Carbon Clean Plus on the Dragons now if you are using fuel without ethenol. I would try that and ride it before I did much to it. Wouldn't hurt to check wire connections though. Same with boots. Check plug wires and boots too. Oil pump cable will not make it miss.
Might also check your fuel tank vent line to make sure it's not pinched they sometimes are pinched inside the tank I think. Also the throttle lever has a built in safety switch and if you start it at home wiggle it a bit to see, if it's to loose it will act up.
check plugs and antifreeze and make sure its not going down you maybe burning the antifreeze and that will cause a miss and or bog.
Similar Issue
A friend's 900 RMK 151 is doing a similar thing, though it doesn't sound to be as persistant as yours. It backfired twice over the weekend on separate days when it was pretty hot, and occasionally bogs when doing a longer climb. It is using coolant and the resovior tank gets foamy
after a ride. Plugs don't seem to be getting cleaned (thats usually an indicator of bad head gasket, isn't it?), or in the case of the 900 they use o-rings instead of a head gasket don't they? Either way, just letting you know you're not alone while hopefully finding an answer myself.
A friend's 900 RMK 151 is doing a similar thing, though it doesn't sound to be as persistant as yours. It backfired twice over the weekend on separate days when it was pretty hot, and occasionally bogs when doing a longer climb. It is using coolant and the resovior tank gets foamy
after a ride. Plugs don't seem to be getting cleaned (thats usually an indicator of bad head gasket, isn't it?), or in the case of the 900 they use o-rings instead of a head gasket don't they? Either way, just letting you know you're not alone while hopefully finding an answer myself.sounds like you are burning the antifreeze.they have the high temp inter O ring now, thats what I put in ,as I had it happen twice.it will melt the inter O ring and your antifreeze will go down as you burn it,dont run it too long that way or will will be worse off.you may even have oil in the antifreeze too.A friend's 900 RMK 151 is doing a similar thing, though it doesn't sound to be as persistant as yours. It backfired twice over the weekend on separate days when it was pretty hot, and occasionally bogs when doing a longer climb. It is using coolant and the resovior tank gets foamy
do you have a pic of them, they will look a little white. but if you are burning antifteeze it will go down ,it may be slow, but it will go down. if not yu are not burning it,it will stay full.
