We got a LOT of snow today
. (And got a fair share last week)
Was just about up to my knee in some spots on the lake. Was a lot of fun after having to wait all year for because the sled was in the shop with all sorts of problems. Took the day off and went out...
Unfortunately my sled broke down in the middle of the lake, YET AGAIN!
Fouled a plug immediately after driving it off the trailer. Changed the plug and it was running like a raped snake at ~7900 rpm at full throttle for awhile, slowed down to make a turn, and it popped a little through the exhaust (figured after running at higher rpms was just the hot exhaust)... went to give it gas and it was surging at 6000rpm... Headed back towards the trailer immediately because I knew what was coming... Slowed down for another curve and this time the rpm's decided to drop off significantly as soon as I touched the throttle. RPM's dropped down to 500 and was on the verge of dieing and I played with the throttle until I got it to surge back up to 4000. Decided I wasn't going to goof around and take the corners safely and I tried to not slow down as much for the next turn, sled slid out on some ice and then caught some snow and I took the leap of faith but landed on my feet luckily. Sled ended up dieing out in the middle of the lake about 2km away from my truck in upper-shin deep snow.
To make matters worst it was one of those white-out days and it was starting to blizzard a little, decided I was going to ride the sled back or leave it there.
Primed it up and pulled it over while holding the throttle, it would start but kept dieing... I realized it would only remain running if I kept priming it.
Drove back with my right hand working the primer and my left hand working the throttle (figure that one out!)...
Good running plug was dark cardboard brown with 1 lighter brown spot. Other plug was black (leads me to believe it's oil).
Anyways, thats my story for todays riding experience!
I'm thinking it's the oil settings on that cylinder since it fouled two plugs in ~60 minutes and I don't think it's leaning out. I'm guessing the added gas while priming was what kept the oil-gas mixture acceptable.
It worked amazingly well the day I picked it up, since then all that's happened is a little drop from driving it off the trailer, filling the gas up from 1/4 to full and slightly colder conditions and the engine bay got filled up with snow while riding... Oh and I started it, maybe I'm fouling them up as soon as I start it?
Unless the main jet got blocked and it was leaning out? Air filter wasn't blocked...
I don't know, I'm beyond frustration now. It CAN'T be an ignition problem. New Caps, Wires, Coil, Plugs, CDI and the Stator has been re-timed. Shouldn't be gas it's a fresh tank and the Carbs were just redone and rejetted. Using synthetic oil. Rotary valve timing was redone. Clutches are clean and seem to be functioning fine. Chain tension reset and fresh oil. Track tension was reset. The top end was taken off and both pistons looked good, one was a little scoured but not enough for concern... Compression was over 130 on both sides and within 10 of eachother.
The carbs were jetted a little leaner when I got it tuned-up so I imagine the guy would have set the oil injection to match, but I'm definitely leaning towards an over-oiling problem.
I dunno, I give up on this snowmobiling thing
... Just kidding I'll be back out as soon as possible...
don't worry i'm an idiot!!
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