Will not fire up!

[redcougy]

So I was out riding the other day with a buddy, we were probably out for about 5 hrs. Testing out the banshee after installing new clutch and top end gaskets. We were out riding the dunes pretty hard and my banshee was overheating, one of my mistakes was filling up the radiator and reservoir with antifreeze and not cycling it in thru the engine. Because when I got back home I checked the antifreeze level in the radiator and it was practically half to three quarters empty. Anyways while we were out riding trying to ride out of a sand bowl my banshee bogged down and quite on me, it just stalled! Tried new plugs out in the field and nothing, tried push starting and nothing. I got home and checked to see if I was getting a spark and it was, I cleaned out the carbs and still nothing, sometimes it backfires. I topped of the radiator and kicked it over a couple of times, and I notice antifreeze leaking thru the nuts that hold the heads down. It turned out that the nuts had loosened up, so I re tighten and and attempt to start and no more leak but still doesn't start. Any Ideas, I've checked for Spark, Fuel, Air and nothing will start her up.

[AKheathen]

check compression. you're supposed to retorque the head after a few heat cycles. you probably messed something sucking coolant, or overheating. what did the plugs look like?

[Rodneya]

Do a compression test and then pull the head and have a look inside, Overheating and the motor dying don't sound good.

[2001Stroker]

Sounds like you messed up the head gasket, to me. Did you torque it properly, warm it up, and re-torque it again? Do you have a stock head with a gasket, or a cool head with o-rings? If you have a cool head, I'd bet the you pinched an o-ring.

[studroes]

if you had an antifreeze leak then chances are pretty good that the base of your motor filled up with coolant. a 2 stroke wont run if there is any liquid in the crank case. here's what i would do, turn off your gas and kill switch or key, hold the throttle wide open and just kick it over a bunch of times. pull your plugs out too, this will make it kick over alot easier. by doing that it will force all the antifreeze or liquid out of the base of your motor. you could pull your pipes off too so they dont fill up with coolant. i just recently had to replace the o-rings on my coolhead and had to go through all that too cuz it filled my engine right full of coolant. good luck, hope it works out for you.

[swrbansheeboy]

sounds like you blew a head gasket and it was pumping all your coolant out, thats why you had to re-fill your radiator. by filling the radiator and continuing to ride you were asking for problems imo....

 

as was stated, do a compression test. i'd bet you burnt a piston due to low coolant levels while continuing to ride the bike with a blown head gasket....