It looks bad, but I cannot say it is the cause. My main diagnostic tool is a hair die spray bottle.
MXZ 2000 700 - carb boot question
Hello,
first time poster, I hope this is the right place, sorry if its not
I am excited to see if anyone can answer me this, my MXZ being as old as 22 years old. It was still going strong until last year.
Then it started to run really bad, and ended up impossible to start. I guess these boots are the reason. Part 867873.
It is of course not in stock anywhere any longer. Is my Ski-doo dead, or does anyone here know of any part available today that can replace said part number? Is too bad to have to wreck it only because of this rubber thing, the rest of the scooter is in good shape despite its age.
Any tips would be greatly appreciated!
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Hello
![]()
first time poster, I hope this is the right place, sorry if its not
I am excited to see if anyone can answer me this, my MXZ being as old as 22 years old. It was still going strong until last year.
Then it started to run really bad, and ended up impossible to start. I guess these boots are the reason. Part 867873.
It is of course not in stock anywhere any longer. Is my Ski-doo dead, or does anyone here know of any part available today that can replace said part number? Is too bad to have to wreck it only because of this rubber thing, the rest of the scooter is in good shape despite its age.
Any tips would be greatly appreciated!
1 - 11 of 11 Posts
Oh my! Those boots are very bad.
The unfortunate, likely scenario is you ran the sled for a long time on bad carb boots sucking too much air and have, at a minimum burned down both pistons. I would do a compression check to help verify this. (Too much air is a lean condition and very hot.)
If so this will require at least new pistons, rings and seals along with the boots.
You'll also want to get a look at the pistons. You can see a small section of them from the side if you pull those boots away. Pop the head cover to look at the top of them. Take some pics and post again along with the compression numbers.
Yeah, those boots are tough to find and have been for awhile. Here is a high quality option for replacing the boots.
boyesen.com
If you can do all the work yourself I would guess it will run around $900 in parts if the cylinders are not damaged. (They likely are.)
Let us know what you find and welcome to dootalk.
PS Here is some reading on burn down.
The unfortunate, likely scenario is you ran the sled for a long time on bad carb boots sucking too much air and have, at a minimum burned down both pistons. I would do a compression check to help verify this. (Too much air is a lean condition and very hot.)
If so this will require at least new pistons, rings and seals along with the boots.
You'll also want to get a look at the pistons. You can see a small section of them from the side if you pull those boots away. Pop the head cover to look at the top of them. Take some pics and post again along with the compression numbers.
Yeah, those boots are tough to find and have been for awhile. Here is a high quality option for replacing the boots.
Performance Intake
boyesen.com
Let us know what you find and welcome to dootalk.
PS Here is some reading on burn down.
Thanks for welcome and for answers and info! The sled is situated at my cabin some 1800km away, I will check out compression etc. this summer, and update 
Frighteningly expensive those boots. But do I need to change reeds as well?
Frighteningly expensive those boots. But do I need to change reeds as well?
1 - 11 of 11 Posts
