What is an good rotax Engine that's easy to put in an fl350?

With eletric start

Preferably liquid cooled

Been looking for a snowmobile to get one from but can't find any thing around me

Don't think a jet ski power plant is gonna work.

The output shaft on the few that I have seen are a straight shaft not tapered like that of a snowmobile or and Ody. You wouldn't be able to put a clutch on one.

Rand

Sorry I ment snowmobile


I'm dragging ass at work right now

Basicly any of them from a skidoo sled

583, 670 and all the engines in between

670 rave? Are they e start?

And what should I pay for an sled ?

I think most of the rotax engines can be fitted with electric start. The starter motor (( Internal Combustion Engine ? )) bolts to the rear top half of the crankcase, then you just need a clutch with a ring gear.

I mean stock with an e start

I don't think alot of sleds come with the estart. Most guys want them as light as possible. Look around, they are out there. i added a ring gear and starter to my 670. It just wasn't all that easy to find.

I too had a hard time finding the correct starter and mounting bracket for the 670. Keep in mind that it has to clear a modified y pipe. Not all rotax starters will fit. It takes a specific location of the starter solenoid on the housing. If you can find a 670 Summit, it will have the correct starter parts, but you'll still have to moddify the y-pipe to fit behind the Oddy seat.
If I was to go back to a sled Engine I would do a 470cc twin. More compact, no huge carbs to deal with, better clutch options,less pipe dependent, good reliable power.

Rotax 467-470-583 is a pretty common size, liquid-cooled, and available. If they're 1990's sled or newer, most have an e-start, too. Bulletproof design and tons and tons of info on them.

You can also pick-up a SeaDoo single carb to convert your dual-carb. It makes it a lot easier on your throttle thumb, easier to tune, and frees up a ton of space.

Not the best time to find a sled Engine for a steal-of-a-price with the colder season upon us. I've definitely noticed an increase in sled traffic on the local CL listings.

I've got a Rotax 470 in a complete sled awaiting extraction. Paid $220 for it in June/July and it's actually pretty nice. Picked up the SeaDoo carb/intake for like $60. Just waiting for free-time to become available. But mine will likely be a winter project...and has a slow, slow, slow build log going. lol

IS AN 521 A GOOD Engine ?


I put an add wanting to trade the blown up blaster I got for an liquids cooled rotax and this guy from sac that's has an 2 stroke shop that's mods them wants to trade me an rotax 521 with all the stuff to make it run carbs,pipes,CDI (Capacitor Discharge Ignition),wiring ect



Any one know any thing abought this Engine?

What's the size rotax type 470?

The 470cc twin is a type 467 block.

The 521cc twin is a type 536 block.

That 521 is a good reliable Engine, but physically a litte bigger, as is wider, than the 470.

It's all about packaging the Engine in the space available. Wider block and dual carbs add to the amount of work to get it to fit.
If you are totally against cutting the frame to clear the recoil housing, IMHO, find a 470.
A good running single carb 470 will give you about 55hp to play with.

So I should want an
Type 467
And what type is an 440? Type 454?

The older 440's were the type 454 the type 354 is the same Engine only 340cc the 340 makes more power than you need too see one at a good price buy it, you can install 440 cylinders and head on the type 354 bottom end.

The more modern 440s that are not rotary valve engines might have different numbers?

I am running the type 454 in my Pilot

so i should look for an
type 454 or type 467?

Before beefing up a fl350 with an Engine like that I would do a-arm conversion on the front. The weakest link in the 350 is the suspension. no sense if having speed that's only going to flip you over.

The type 583 is what I would look for, 100HP, same Engine I have in my Drak. you can get them for 300 bucks if you look hard.

What Engine do can u put in and not cut up the frame ?
The 440?

I was actually planning on doing that in the future

Both either one will do

Yup.../\ what he said/\

It's actually an type536

Is there any clearance issues fitting a 670 in the 350 frame? I am thinking of swapping over to a sled Engine as well. I can get full early 90's 583 or 670 sleds for almost the same price. Just curious as to which would be a more simple swap?

I think both of those engines are about the same physical size. The one problem i run into with my sled swaps, is the pull starter not fitting without frame modification on the one side. This is the case with my pilot with the 670, and my FL350 with a Yamaha Exciter 570. Does not really bother me too much because i prefer the electric start anyways.. just will suck the day my battery goes caput.

One other thing to remember about the rotax, is that the intake is down in the crankcase. This requires the Engine to sit up a bit higher in order to let the carbs clear the transmission. YOu could also strech the frame slightly, get a longer belt, and move it forward and down in the frame. Its all up to you the way to go about it.

Yea the carbs the only problem I can see really running into. Someone mentioned before about modding a personal water craft set of carbs to clear, since they sit slightly different then the sled ones.