the untold problem 2008 09 polaris 800 eng failures

[yoggibear]

i have a 2008 800 dragon with 1000 mi on it i just returned from mcbride bc rode renshaw for 4 days my eng failed the first day there a friend had a spare sled that he lent me for 3 days i was on a hill at half throttle my eng went to a 1 cyl running i shut it off put 2 new spark plugs still on i cyl so i drove it to the cabin and drove it down to the parking lot loaded it and went to glengine in mcbride he looked at it right away and the 1 cyl had no compression at all he removed the reed valve and seen the prob scorched wall and piston my machine still has 2 yrs warranty so he told me to get it fixed at my polaris dealer glen is an excellent mech and person so i get back here and i tell my dealer that my machine only uses about a half a litre of oil for 10 gal gas and that is not enough oil even that it is cynthetic and here goes HE SAYS TO MEET THE USA EMISSION STD POLARIS CUTS BACK ON THE OIL PUMP WOW i think i am about 100 to 1 mixture and we need 50 to 1 SO GET YOUR DEALER TO OPEN THE OIL AND YOUR ENG WILL NOT HEAT up WHAT HAPPENS is your eng gets hot your wrings seize to the piston no compression and then you need the eng block pistons and head so till you get that done put some oil in your gas tank i am not a mechanic that is my 2 cents boys i am 63 g pa and will meet you boys on the hill good riding yogggibear

[timbo]

my 09 800 seized at 400 miles,mag side piston failed.exhaust side had a hole in it,intake was good,don't think it was oil problem was running lean in mid range.did you get latest reflash?mine is running good now,complete short block from polaris.

[yoggibear]

Originally Posted by timbo

my 09 800 seized at 400 miles,mag side piston failed.exhaust side had a hole in it,intake was good,don't think it was oil problem was running lean in mid range.did you get latest reflash?mine is running good now,complete short block from polaris.

yes i had it reflashed i call it mapping last year it was done prob not enough oil my guess

[timbo]

latest mapping reflash jan 27 09

[timbo]

latest mapping reflash jan 27 09

[blastoff]

Hey Yoggibear, I have changed out to a Doo Doo for now. You better get that puppy back on the snow, we got to do that Marie Lake deal yet this year.
Perhaps you should get a machine to use since you have been to hell & back with that machine. Also may be put a Nitrous kit or Turbo on it since it is at the shop.

[blastoff]

Yoggibear, when is this machine going to be ready wans`t this the other Dragon we pulled of the Mountain the next day out of the saddle.

[cey800]

All this talk about remapping, new flashing is crazy. These sleds shouldn't need any updates! They are new sleds. Polaris needs to invest alot more $$$$ in R&D. I thought Polaris would of learned their lesson with the 900 ? I've been riding the Edge chassis since it came out and I'll continue riding it.....it may be old iron, but it gets me home.

[Maxwe]

Same trouble with piston melt down.
ugggg

[BrosBeforeHos]

Originally Posted by timbo

latest mapping reflash jan 27 09

I had the new flash installed. Blew motor last night, mag side piston is done, left metallic specks on the spark plug. This is the end of Polaris for this guy, good luck to the rest of you!!!

[yoggibear]

Originally Posted by Maxwe

Same trouble with piston melt down.
ugggg

hi maxwe yes they put the piston block pistons and head the crank was ok they took it out cleaned and checked the bearings it is now running fine i only put on 50 mi on it but i did make them to open the oil and they added oil to the gas for the first tank ful but also the mapping could be a prob with some of these c u ty marcel

[timbo]

Originally Posted by BrosBeforeHos

I had the new flash installed. Blew motor last night, mag side piston is done, left metallic specks on the spark plug. This is the end of Polaris for this guy, good luck to the rest of you!!!

that sucks!!! you should push your dealer for a complete short block assembly,tell them this one has blown too many times.mine is still goin,but i pull exh valves after every 100 miles for a look see!!!