2012 800 RMK w/2900 Miles

[LongHorn XC]

A buddy of mine, just bought a 2012 800 RMK and the sled is running great. Yes, he did purchase it from a rental shop. He rode it for 4 days after the purchase, and it seems fine.

Since, there are so many miles on this with no warranty, should the pistons be inspected? My thoughts are to let it run until she blows. Maybe, she will hold up for another 2000 miles. I would have thought if there are skirt of piston problems, it would have already occurred.

What are your thougts, anyone else with 3000 miles without any problems on their Pro?

I usually change the pistons at 5000 miles on my sleds. Right now, I have a non-valved 700 motor with 12,000 miles on it. I've only changed pistons twice and it still runs as strong and the day I bought it.

 

[wellfed777]

if it were me i would want to open here up and take a look
i think 3000 miles is time for pistons on a 2 stroke no matter who built it
also waiting till she blowes could be very expencive gamble if it takes out the cases or who know what else
good luck

 

[Demo250]

I think I would just keep running it for the rest of the season. Unless he rides a ton or something.... Maybe before next year if he wants he could look into an RKT drop in or something.

Did the rental company specifically say it is the original motor though? If you don't know for sure, it could have had work done already. Just a thought.

 

[assault11]

Got 3000 on two and theyre running really strong. Haven't had any major issues. Oh and ones for sale if anyone wants it haha

 

[poolaris]

just check the compression?? if its holding, why waste money on changing parts that dont need to be changed

 

[Jaynelson]

^Agreed, if it's running well and the compression tests ok....I would be inclined to let it be.

 

[GREICO1]

If it were mine, I would change them. $400 now to freshen it up sure beats $4000 mid season next year for a new motor. I would also install a new fuel filter, check the reeds, and make sure the throttle body bores are clean. I have seen quite a few (mostly CFI4) motors lose pistons that have a ton of belt dust caked inside of the throttle bodies and reed cages. Guess where that goes?! I would also split the case and have the crank runout and bearings checked. Personally, I would rather take care of this in the warm months of summer than to need to scramble to make a trip in winter.

 

[AndrettiDog]

It's pretty simple to pull the head and see how things are going. If I had the extra cash it would be worth it to tighten the piston slop with the MTK pistons.