Jeff what track are you running?What temps are you seeing?I have a 135x1.5 and my temps are right around 144 when on hardpacked trails.I also have a rkt head without the thermostat which makes it run cooler also.Mine runs perfect and 10 times better now with the 136.I put in the Polaris 136'' rail and tunnel ext. kit but when riding riding I don't think its getting enough snow with the rear cooler in its same 121'' location .
Anyone else ........... ?????
As stated ..... snow conditions were real good. Flap is stock , all coolent blead ..............at 180 the ECM starts adding fuel and pulling timing out, and that means less power.
Did you open the cooling circuit anywhere to possibly get air in there? bleeding the air out can be a difficult task on these sleds.
Did you shorten your flap at all? That will get them hot real quick.
Where are you riding? how deep is the snow?[/b]