Engine list of Max ????

[Robio_8x8]

You best bet is to contact a BRP snowmobile dealer

The Rotex engines I work with in Ski-doos have oil injection so I am not 100% sure what the perfect mix is. The older sleds had a very rich oil mixture but I have been told that with new 2cycle oils it does not need to be as rich. I have seen the mixture as rich as 20:1 on a Rotex but most are around 40:1 or 50:1. If you go to rich you may just fowl the plugs and possibly gum up the carb. No big deal both can be easily cleaned. To lean of a mixture could cause problems far beyond cleaning.

I have also seen an 8hp JLO engine in a Jiger take 16:1 oil mix but I usually do not see it that high not even my weed trimmer or chain saws take that rich of a mixture.

I would say 32:1 would be safe with quality two cycle oil but you may want to get in touch with a BRP dealer. This will not be the same engine as the Sea-doos they are lake/ocean water cooled.

[chrisivins]

Yes, its a 2 cycle. Anyone know the fuel oil mix ratio?

[Robio_8x8]

Snowmobiles use that engine

The max i just bought the guy said it had a rotax in it also. he said it came from the factory. He said i could get parts from an airplane store because they use that engine in hang gliders..

It may not be common in Florida but those engines are common in snowmobiles making it very easy to find parts if and when needed.

Is yours a two cycle motor?

This site may help

Snowmobile Parts, ATV Parts, Go Kart Parts, Mini Bike Part, Lawn Mower Parts, Chainsaw Part and Small Engine Parts

Look under Ski-Doo /BRP Bombardier Recreational Products

BRP-Rotax

[chrisivins]

I dont know how to tell what size rotax it is but it does go fast. Ill post some pics this week.

[jpswift1]

Recreatives never used a Rotax engine, although depending on the model of engine, he is right on the the use of Rotax engines in ultra light aircraft. The 503 Rotax is an especially popular engine for this application. It is a great motor, and very powerful. Hydromike has one in his Attex 503/R and that thing flies!!!

[chrisivins]

The max i just bought the guy said it had a rotax in it also. he said it came from the factory. He said i could get parts from an airplane store because they use that engine in hang gliders..

[Marc]

Thats exactly the rollcage i also have, i thought it was custom made and i could not understand for what it should be. Normaly the usual rollcage should do it i thought.

[whipper-ag]

When I bought my first Big Max in 1972 ( the 11th one off the assembly line), it had a 400JLO and it was one wheelie machine. I got in the car with the salesman, and he pulled a monster wheelie with both of us in it. I got out and said I'll take it.Back then RI used to have a 3 point roll cage that went around the back of the car and tied into the trailer hitch. That actually stopped me from rolling over backwards many times. I never broke a chain or a T-20 from doing a wheelie. Ahhh, the good old days.
I say, if you got the horsepower, a roll cage and are strapped in, GO FOR IT!!
And then post some videos. Try it you'll love it.
Now let's talk rollovers, anyone got any good stories?
I rolled my first Max without a roll cage and got pinned underneath,thanks to some friends they lifted it off me.Let that be a lesson to all that ride without a cage.
Whipper

[Roger S]

"throw you back in the seat and keep you there until you let off the throttle."

That's what I'm talkin' about. My 8 wheeler's a little heavy to get that effect. They make lightweight safety flywheels for the vanguards. About 7 lbs compared to 17 stock. Let's it rev quick. No magnets for a charging system, though. I think one would have made a wheelie machine out of Whipper's Attex before the springer conversion, without slipping the bands to launch it.

[liflod]

My Max II has a 440 Rotax in it. I have not tried wheelies yet, but I managed to get 42 MPH out of it before I had to let off for a turn. It had a lot more left when I let off. I may try the wheelie thing but I know something is going to break! When you hit the gas from a rolling start (10 MPH) it will throw you back in the seat and keep you there until you let off the throttle.

[Marc]

I´m not sure if i should try a wheelie.
I want to get old one day
No seriously, i dont know if the chains and sprockets are build for wheelies.
But maybe.... a little try here and there... and if im out of hospital i will report (i thought this smily is the best for this situation even it means something different)

[jpswift1]

Marc, the guys that build the Maxes up at the factory (Recreatives Industries) told me that the Max II with the Kawasaki 440 could pull wheelies. I think the machines also weighed less back in the 1980's when the Kawasaki 440cc engines came in them.

[Marc]

It seems to be the original engine, but i only had driven a few meters untill now.
I was to busy the last weeks so i dont had the time to try anything. The preowner told me that it should be dangerous to drive this monster.
I have to replace the fueltubes and then i will try it. I also will try to make a video of my first real ride like i did with all my other aatvs.

[45js45]

Were there any reliability issues with this motor?Anyone ever driven 1 with this,it would seem to be overkill considering the 4 stroke motors thay come with today.Was this a upgrade motor?

[argohunter]

Marc,

That old Kawasaki should have an engine number plate. It would consist of eight or nine letters/digits. This is an example of what the number would look like: T1D440A2A

The last digit or letter should be stamped in the plate. The preceeding letter/digits should be printed on the plate. Can you get the number and let us know what it is?