Carb/throttle body boots-why the failure?

[xcsp]

On the topic of the carb boots failing-cracking, delaminating, I can see with age that the rubber can fail, but with fairly new sleds, is the problem with the E10 fuel and/or the suppliers of the "boots"?

Years ago, I never had seen much talk of the problems, but lately it seems to be an item that needs to be checked.

 

[snowfreak56]

Part could be a qaulity thing also but the ethanol and other additives in the gas now days causes issues also as it drys the rubber out.Sad thing is with the tecnology we have now days they can make rubber that will stand up to it because rubber is used in fuel systems all the time.

 

[polarisrider1]

with the fusions it was part excessive vibration and to hard of rubber. I have seen boots on 40 year old Polaris sleds looking better than a 06 Fusion. Poo needs to realize that a vendor with defects can kill them. look at the 2113 drive shaft issue on the RMK's. Poo is as dumb as rocks when it comes to trusting vendors. Historically they have let the public test their stuff and ran around behind denying problems as they fixed them. To me that is the worst way to do business. Back to the question, the replacement boots will solve the issue and are easy to change out. I would ask the dealer about a service bulletin on the sled and push for free repair.

 

[winter_time]

I was wondering the same thing and one of the things I thought was that for example on the new polaris fuel injected motors the fuel is delieverd after the the boot and the boot is getting nothing but air which could cause the rubber to dry out with ease. The carbed machines didnt seem to be as bad as the fuel injected machines at least not in my opinion. with that said I do agree with polarisrider1 there is also some problems with the vendors using the wrong type of material.

 

[polarisrider1]

I was wondering the same thing and one of the things I thought was that for example on the new polaris fuel injected motors the fuel is delieverd after the the boot and the boot is getting nothing but air which could cause the rubber to dry out with ease. The carbed machines didnt seem to be as bad as the fuel injected machines at least not in my opinion. with that said I do agree with polarisrider1 there is also some problems with the vendors using the wrong type of material.

I do see your point of oil lubricating the rubber keeping it soft, but gas (corrosive) is at a much higher ratio than the oil (lubricant with some corrosives) which could work just the opposite. (in theory). I suspect low bid got the job and pushed cheaper product thru.