Sled repair

Old Hubbard Rd · 02-24-2009, 08:59 AM

Many thanks to your many comments. Sorry I have been away. This seems like a unfortunate consistant problem with these machines. I guess I'm not alone. I never realized how often this happened to people. I noticed that both times I blew something it was after Fishing Derby weekend and I had the family out on their 1 time a year sled ride. My family is pretty frightened of driving on the ice/lake. There are no trails from Meredith Neck to other trails without crossing the lake. When the famly drives they go rather slow and I really think these skeds need to be beat a tiny bit. I've never had problems on the trails because I think the continued throttling helps.

I'm sure Polaris and HK will do nothing about this even though I purchased these sleds there.

chipj29 · 02-24-2009, 11:58 AM

Quote:

Originally Posted by Old Hubbard Rd

...I'm sure Polaris and HK will do nothing about this even though I purchased these sleds there.

Both sleds are 2000 models? If that is the case, then I highly doubt any dealer or manufacturer would do anything.
That being said, someone else mentioned it above, but there has been a prob with the Polaris 550's. I read about it on slednh.com

Smitty1 · 03-03-2009, 09:30 AM

I have a 2006 Ski Doo MXZ 550 Fan that blew a piston which then tore up more of the motor. I have a quote for about $2000 to repair.

This happened after I got gas in Holderness. It seems that ethanol gas/water is the problem.

FYI Here are 2 products I have heard of that may help with these issues:

http://www.k100fueltreatment.com/

http://mystarbrite.com/startron/

A friend of mine uses K100 in all his sleds and in his boat during the Summer.

Smitty1

Old Hubbard Rd · 03-03-2009, 12:41 PM

Quote:

Originally Posted by Smitty1

I have a 2006 Ski Doo MXZ 550 Fan that blew a piston which then tore up more of the motor. I have a quote for about $2000 to repair.

This happened after I got gas in Holderness. It seems that ethanol gas/water is the problem.

FYI Here are 2 products I have heard of that may help with these issues:

http://www.k100fueltreatment.com/

http://mystarbrite.com/startron/

A friend of mine uses K100 in all his sleds and in his boat during the Summer.

Smitty1

My last fuel up was at the Irving Station across from the Plymouth State/University field. Where did you fuel up??

I think that the new fuel with ethenol plays a part in this. HK said the inexpensive oil I'm using is not the issue. These sleds do tend to heat up I guess being fan cooled. Plus HK said that these fan cooled motors are not designed for speed so when I'm trying to keep up with others on wide open lake ride my sled is working harder than others. He also said something about running lower octane fuel as it burns cooler than high octane. Blowing a motor on our toys STINKS!!!!!!

dan · 03-03-2009, 01:21 PM

I'm not positive but I don't think the octane rating of the fuel has anything to do with it. (Octane rating does not relate to the energy content of the fuel (see heating value). It is only a measure of the fuel's tendency to burn rather than explode.) This is the definition of octane that I have seen many times. When buying gas we used to say, "if it don't knock burn it." I had a friend who was an aircraft mechanic during WWll who told me they used to water inject the radial engines when they were in a dog fight. Claimed it gave them more power but raised hell with the pistons. If this is true maybe moisture in the tank is causing it to run hotter.

Smitty1 · 03-03-2009, 03:14 PM

Quote:

Originally Posted by Old Hubbard Rd

My last fuel up was at the Irving Station across from the Plymouth State/University field. Where did you fuel up??

I think that the new fuel with ethenol plays a part in this. HK said the inexpensive oil I'm using is not the issue. These sleds do tend to heat up I guess being fan cooled. Plus HK said that these fan cooled motors are not designed for speed so when I'm trying to keep up with others on wide open lake ride my sled is working harder than others. He also said something about running lower octane fuel as it burns cooler than high octane. Blowing a motor on our toys STINKS!!!!!!

When you come down the hill out of Plymouth there is a Mobil and an Irving on the left. I wish I had gone to the Mobil!

02-24-2009, 08:59 AM	#1
Old Hubbard Rd Senior Member Join Date: Apr 2004 Posts: 462 Thanks: 141 Thanked 54 Times in 33 Posts	Thanks Many thanks to your many comments. Sorry I have been away. This seems like a unfortunate consistant problem with these machines. I guess I'm not alone. I never realized how often this happened to people. I noticed that both times I blew something it was after Fishing Derby weekend and I had the family out on their 1 time a year sled ride. My family is pretty frightened of driving on the ice/lake. There are no trails from Meredith Neck to other trails without crossing the lake. When the famly drives they go rather slow and I really think these skeds need to be beat a tiny bit. I've never had problems on the trails because I think the continued throttling helps. I'm sure Polaris and HK will do nothing about this even though I purchased these sleds there.

03-03-2009, 09:30 AM	#3
Smitty1 Senior Member Join Date: Jan 2006 Location: Moultonborough, NH Posts: 142 Thanks: 44 Thanked 14 Times in 5 Posts	I have a 2006 Ski Doo MXZ 550 Fan that blew a piston which then tore up more of the motor. I have a quote for about $2000 to repair. This happened after I got gas in Holderness. It seems that ethanol gas/water is the problem. FYI Here are 2 products I have heard of that may help with these issues: http://www.k100fueltreatment.com/ http://mystarbrite.com/startron/ A friend of mine uses K100 in all his sleds and in his boat during the Summer. Smitty1

03-03-2009, 01:21 PM	#5
dan Member Join Date: Jan 2005 Location: moultonborough/billerica Posts: 42 Thanks: 21 Thanked 7 Times in 4 Posts	I'm not positive but I don't think the octane rating of the fuel has anything to do with it. (Octane rating does not relate to the energy content of the fuel (see heating value). It is only a measure of the fuel's tendency to burn rather than explode.) This is the definition of octane that I have seen many times. When buying gas we used to say, "if it don't knock burn it." I had a friend who was an aircraft mechanic during WWll who told me they used to water inject the radial engines when they were in a dog fight. Claimed it gave them more power but raised hell with the pistons. If this is true maybe moisture in the tank is causing it to run hotter.