Join Date: Aug 2010
Location: Moncton, New Brunswick, Canada
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Well, since it's burned more than one of us....is the kill switch ON? :-)
After checking that, I'd pull the spark plug and have a look at it. If the tip is wet and oily than it's possibly just flooded. Take a lighter and dry the plug.
Try it again.
When the plug is out you can check and make sure it's firing (If you want)
- Fit the plug into the end of the plug wire. Hold the ground area of the plug (the threads, or the hex area where the socket fits on) against one of the engine cooling fins (or something that you know is grounded).
Crank the engine for a second or two, watching for spark jumping between the center electrode and the ground tab.
If you've never done this before, use pliers with insulated handles to hold the plug boot. If you're a better path to ground than whatever you have it grounded against, it WILL go through you to get to ground. Won't hurt you, but you'll feel it for sure.
After you try starting it again, check the plug again.
It it's dry, you're not getting fuel. If it's wet, there's likely no spark.
(Rule of thumb....)
From your first statement about it not running unless it's choked, and since you said it sat quite a bit, I'm going to guess your carb is gummed up and it's running really lean. (what year? does it have a carb? I dunno..)
After you verify spark, you'll have a direction to go anyway.
((Edit)) Good idea to check for gas in the oil if it was flooded. Oil's cheap...if it's got gas in it, it should be changed.
If the plug is fouled and not firing, or just simply not firing, when you try to start it, fuel is being pulled into the combustion chamber. If it's not burned, most of it goes down the cylinder walls, past the rings and into the engine oil.
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2010 Brute Force 650 4x4i - Smokey Blue
1998 Grizzly 600 - Blue Smoke
Last edited by gcfishguy; 10-13-2010 at 06:02 AM.