Ski doo break in

[muss]

Well, I thought for sure I would have my new 2011 MXZ TNT carb broke in by now seeing I bought it in Feb last year, But it is now almost the middle of Jan
And not a flake of snow here since I bought it. We are leaving the 24th for a trip to Houghton and I am curious to get some opinions on how many miles I need
To break in before I open her up on the lake. I know I need to vary the throttle a lot but am I ok to travel 65-75 while doing it? And when the boys hit the lake
Can I try to keep up, or should I wait until I hit a certain amount of miles? Any input appreciated.

 

[russholio]

If I remember from the owner' manual.....varying the throttle is important (sounds like you already know that), and generally not going over 3/4 throttle. However, brief runs of WOT are okay. I believe break-in is in effect for the first tank of gas.

Been so long since I've had a new sled I don't remember for sure, I'm just relying on memory....if you don't have an owner's manual I think you can download them in .pdf format from Doo's web site.

 

[gary_in_neenah]

Muss,
Back in 03 we had a Low-Snow year like this one and I had just bought a new MXZ, a similiar situation as yourself, anxious to ride anywhere. Me and some friends hauled the machines north to Munising for two or three days to play in the snow up there. The group I was riding with at the time rode fast and hard and I had no choice but to go with the flow on a new engine. I had no issues whatsoever though I would have preferred a more gradual break-in period. Good luck with your new ride. Do what you can under the circumstances by watching the fluid levels, use fresh gasoline and a quality oil. Enjoy the new ride!

 

[walteroch]

i am new user of this site

 

[Deleted member 10829]

i am new user of this site

Welcome to the site! Let us know if you have any questions and enjoy!

 

[muss]

thanks for the replys, I guess I will just vary the throttle a lot even at 60-70 mph the first full day
and by day two I will start to open it up on the lake. There is oil in the gas tank now for the first fill
does anyone think I should add more on the second fill? or is the first fill enough?

 

[jimfsr]

firs tank is fine for the oil mix. Don't ride steady throttle at 6000-6500 rpm for more than 1/8 mile or so on that motor, real lean spot there, tends to run hot. just keep the throttle moving around to vary the fuel being sucked into the cyl at those rpms and it should be fine. Just speaking from the readings on my EGT, the temps really go up in that rpm range. WOT is fine with stock jetting, nice cool EGT readings.

 

[snowfreak56]

Dont be afraid to run it across the lake i just would not pull any real long wide open pulls for the first tank of gas.Sounds like you have the rest figured out.Dont treat it like you aint going to ride it.In my opinion break them in the way you are going to ride them with the exception of long wide open pulls right off the bat.And no extra oil after first tank.Enjoy

 

[muss]

All great advice, Here is another question, can I jump off trail in deep pow? (if there is deep pow by then ) just don't pin it all the way
And vary the throttle? Thing is, I tend to pin it in deep pow, so maybe I will stay away from it the first day. Who knows maybe we will
Get some snow here in NW Illinois before the 24th and I can still get the break in over with here in the flat lands!

 

[BREEZY]

how much oil did you put in the first tank

 

[muss]

I am not sure to be honest, the dealer At Robs performance added it when I bought it and it has been
So long I forgot how much he said. After the first tank and I refill with straight gas should I add
Seafoam?

 

[whitedust]

Baby it or ride it like you stole it after 25 miles of easy stuff. Get that engine super hot & let cool & repeat 3 times hot to cool. After that you are ready for anything forget seafoam won't help with breakin. Mix oil in 1st tank make sure oil is being metered & rock & roll. I have seen 2s ridden flat out out of box & I have seen 2s babyed both ran about the same with edge to longer service for flat out smelling that new engine paint doing a burn.

 

[rp7x]

ride it like ya stole it

i broke in my 03 pro x when the first 100 rolled on it i was runnin a 100 sold it just under 7000 never been apart

 

[DJDOO]

Robs added the oil for break in, run that through and then add straight premium, vary throttle often no WOT for first 10 hours or 300 miles or what ever comes first-done. They also have a chip that limits Engine output that will expire at about 10 hrs.

 

[muss]

Interesting, I didn't know they had a chip, so does the chip prevent from WOT. On a side note I put on about 15 miles today, 285 to go!

 

[skidooking]

Thanks for the invite!

 

[600etec]

since Ski-doo came out with the ZX chassis in 1999 on the mxz600 w/mpem box they have a program that retards the timing/program curves to control break in for I believe 10 hrs. Other than 8-12oz of oil in the tank ride it how you want. the main thing like others has stated do not hold at steady RMP. Opener up and let her ripppppp! biggest thing is break in the belt for 10-15 miles(no wide open).

 

[muss]

Update.....I know have 51 miles on her, Its hard to put miles on in the ditches of Illinois vs the trails in the UP
It's going good although I really want to get on it and it's hard not to go wide open, the only thing I worry about
Is when I am in the drifts I Need to pin it a little so I don't get stuck, so I have been floating through them almost getting
Stuck a few times as I don't want to go full throttle of course. Craig, check you email.

 

[muss]

Another question I have is what should my RPMs be running at idle, shouldn't it be idling at 2? I noticed when
I come to a stop and idle the RPM reading is around 3 and takes it's sweet time to idle all the way down to 2
Sometimes I even had to hit the throttle to get it to idle down to 2, is this common with breaking in the sled?

 

[600etec]

do not worry about opening it up and given it **** in the fluff you won't hurt it. It is a 2 stroke let her ripppppp... actually there are beliefs out there that if you break a 2 stroke in fast it will be a fast sled and slow will be a slow sled.
As for the idle issue, it is usually a pilot jet issue. Did you clean the carbs? did you use sea foam for storage? very little build up in the pilot jet will cause the sled to idle higher. When you burp it (give it a little gas) it will sometimes idle down other times it won't. Correct? i had the same problem on a carbed ski-doo.