06 rmk 600 new sled to our family did the radiator delete kit took out for the first time today ran like crap till we ran it in parking lot then ran great momentarily then it bogged down no power and then died would not start let sit for about 15 minutes and started bogged down ran great then bogged down and quit again repeated this approx 5 times then towed sled back to truck. When I did the radiator delete did not change or drill thermostat and has always had service engine light on display since we. Bought it any suggestions appreciated
Did you bleed the air out of the coolant? Raise the front end with a jack, warm the engine and open the cap. once the therm opens it should burp out any air!
Next did you clean the carbs? Check the center to center on the clutches and clean them?
Ok figured it out there was a vaccum hose located on the right rear of cylinder that goes to the pump located on the oil and coolant resavoir where factory red hoses and fuel shut off is located bonehead mistake didn't see until I removed air box runs like a champ thanks guys happy sledding