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No I have't replaced the needle and seats yet, they are pretty pricey as they come as a complete unit with the floats. I guess this weekend I'm going to be checking the reeds, temp sensor and fuel pump. If those don't fix the problem I'll be rebuilding the carb and fuel pump next.

Hmm I could check that out, not sure what to check on it tho to know if it's good or not. Wouldn't want to just buy a new one and hope it fixes the problem.

Carbs are sitting properly, I pulled them off and gave them a cleaning after sitting all summer. I am having a rich fuel problem ever since I've owned it, fuel literally dumping out of my exhaust. No cracks on the intake boots, choke not stuck or sticking. So I'm trying to determine if the rick...

I haven't tried brand new plugs, but I did put in new plugs just before the motor blew up on me so they have only had like 2 hours of riding on them and they look like they are in decent condition.

My 01' RMK 800 seems like it's only running on one cylinder. I just rebuilt the whole motor and am getting 155 psi on both sides, there is spark to both plugs and I am stumped where to go next. I pulled the spark plug wires while it was running and when I pull the pto side the engine stays...

Perfect thanks for the info! Gotta get me a set of ice scratchers after this weekend to complete my set up.

Well she's all cleaned up and ready to hit the snow this weekend. Here's hoping it's a good time out at Valemont. Thoughts on what I should do for a break in period of my new cylinders/pistons/rings? I've let it idle and warm up a handful of times now to re-check the bolts after expansion and...

Ok cool I'll give that a go. I can park my sled in my heated garage for a few days after I wash it so that'll help dry everything out as well.

Do you spray the engine cleaner on the clutches with them still installed? There is a sharpie mark on my primary where it is supposed to be lined up with because it was dynamically balanced. I'd need to make sure I don't loose that.

I redid the top end this summer (new pistons, cylinder, gaskets). I've warmed it up a few times and burped my cooling system. Next on the list is to re-torque the head bolts after a few warm ups. What else should I do for a pre-season maintenance/check? The previous owner said something about...

Finally put back together and seems to be working properly. Haven't fired it up yet but I'm thinking the coolant in the crankcase was getting tossed out the exhaust. Now here's hoping the crankcase being full of coolant for 3 days didn't bugger anything up too badly.

Opened her back up and the crankcase was full of coolant. That's not to say that the coolant didn't fill the crankcase when I pulled the cylinder off as coolant went everywhere. I'm suspecting the base gasket isn't sealing properly. Anyone use any sort of rtv or gasket glue to keep it in place...

Thing is I didn't have any leaks before the new cylinder was put in. Only problem was the low compression making the reverse not work properly. I'm hoping it's not the cylinder but I'll take it apart and take a look at it.

Ya the crankcase has coolant in it, yes both sides but there wasn't a ton as I've only been pulling it a few times by hand and not starting the engine. The cylinders are new so I cleaned them up to make sure there wasn't any sort of machining oil or anything left on it with warm water and soap...

And yes I made sure I'm doing FT. lbs not IN lbs. I've made that mistake before lol

I'm just about ready to quit on this project, seems like I can't catch a break. Got a new cylinder (reconditioned), and new pistons and rings along with a full gasket kit and the engine is 90% put back together. I'm getting 165 psi on both sides BUT I've got coolant flowing out my exhaust ports...

It's been a while since I've looked at the dash/gauge cluster. Is there a temperature gauge or how do I know if it's over heating? I have been meaning to get ice scratchers but I've never seen anything on the dsh telling me the sled is getting too hot.

Lost some of the plating on one side of my cylinder, going to replace with a reconditioned one. I was hoping this would be a reasonable fix but I'm going to have to dip into my sled deck savings :(

Thanks for all the info guys! I'll make sure to take my cylinder with me to MOTS on monday when I pick up the piston kit.

Thanks teeroy I'll give that a try. Seems like it's readily available and worth a shot.