Obviously its running rich, although when i first got my Triumph i went through 2 BOXES (think there are like 12-18 plugs to a box??) of ngk plugs in a weekend. So two sets doesnt sound all that bad to me....lol j/k, a properly tuned sled should hardly ever foul a plug out. Make sure you are running a quality gasoline and of the proper octane rating. Believe it or not, there is such a thing as too much octane as well as too little octane. Make sure the gas is fresh, say less than a month old.
Ok, if all sounds good so far, make sure your air box has no restrictions (plugged foam filter) and that your chokes are adjusted properly. If you still seem to be satisfied with what i have said so far, its time to pull the carbs and give them a good cleaning, checking for stuck inlet needle valves, improper float lever, waterlogged floats and/or proper jet sizes.
I would say the #1 problem with any snowmobile engine performance complaints, is due to dirty carbs. Pull them off and give them a thorough cleaning, most of the time your problems will be solved.
Polaris is my way out - Other people just use a door.
Ok, if all sounds good so far, make sure your air box has no restrictions (plugged foam filter) and that your chokes are adjusted properly. If you still seem to be satisfied with what i have said so far, its time to pull the carbs and give them a good cleaning, checking for stuck inlet needle valves, improper float lever, waterlogged floats and/or proper jet sizes.
I would say the #1 problem with any snowmobile engine performance complaints, is due to dirty carbs. Pull them off and give them a thorough cleaning, most of the time your problems will be solved.
Polaris is my way out - Other people just use a door.
