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Old 12-30-2012, 09:08 PM
crdude's Avatar
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Default fixxing the proxr w/ pics

     

So I was one of the unlucky ones with an 800. crank snapped in half at 11xx miles.

So, I'm replacing it with a liberty 700 ves, minimal loss in performance and gained reliability. I beleave the 800 was rated at 136hp, and the 700 in stock form is rated at 129hp. so throw a pipe on the 700 and it should be relativly close in hp.

bought a 2002 rmk 700 for the engine. got it pulled.

spent about an hour cleaning the engine.

installed prox style exhaust manifold

installed prox carb boots and my 800 reeds. also why my reeds were removed I noticed my crank has been rebuilt before. and installed prox engine straps

dragged my proxr in the shop, couldnt resist taking a beauty shot of it.

under the hood was dirty from sitting for the past year.. cleaned it up.
before

after

removed the recoil, oil pump and lines, and coolent/oil pump belt. I then replaced them with the parts from my 800, sense they only had 1100 miles on them.

out with the old, in with the new(er)

installed an aftermarket can.

got the engine dropped into place.

oil lines connected, coolent hoses connected, fuel lines conected, oil cable adjusted to spec.



Now I'm currently trying to figure out some wiring issues I'm having, the 2002 700 CDI wont plug into the 2004 CDI wiring harness, so I'll either have to find a 2004 CDI (which id like, so I will have D.E.T and PERC) but dont want to dump $400 on a new one. so for now I'm looking for a way to run my 2002 CDI harness to the 04 chassis. I'v also been looking for a local shop that can remap CDI's, if I can find one I'll have my 2004 800 cdi remapped to 700 specs.
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Old 02-26-2013, 12:32 AM
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No real progress has been made, but I did orderd a CDI. It should be here in a couple weeks.
I also orderd some stock 2004 700 pilot jets, stock 04 700 ran 440 main jets, I was running 430's with my 800 so I'm going to run those and see how it does. My only consern with the jetting is the 800 needle, I'm not sure how well it will work with a 700. I guess I'll find out in a few weeks.

Have to pull my engine, and swap out the 14deg stator for a newer style 18deg stator to work with the 04 CDI.

I'm really looking forward to seeing how this engine will perform in this chassis. The 2002 700 Im using has higher compression then the 03-05's due to no decomp port in the cylinders. Harder to pull over, but makes more hp.
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Old 02-26-2013, 12:42 AM
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This looks extremely interesting!! I've never really had a chance to look at a snow mobile before and the working therein, if we had snow here I'd get one
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Old 02-26-2013, 02:31 AM
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Oh man, they are a BLAST to ride!!! I hate to admit it, but I enjoy riding sleds more then bikes.

The only down side is they are much more expensive to maintain then a 2stroke bike is. Everything costs an arm and a leg even with the discount I get at the local dealer, and I'm very good at breaking things when I ride. For me, I have issues with avoiding trees for some reason. I sware they have a magnet in them. I couldnt see very well due to flat light and unexpectedly launched off a wind drift. Right side suspension cought the part of a tree and the end resault is a slow ride off a mountain and about $400 in damage.. (if you look closly, there are NO tracks around where my sled is in the pic, thats how it landed and it brought some of the tree with it!) fortunatly that is the only wreck I'v had with this sled.


In the end, its still worth it.
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Old 02-26-2013, 02:50 AM
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Haha wow!!!! Yea I bet they are expensive....but great fun
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Old 02-26-2013, 03:43 AM
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I used to have one until my little brother crashed it into a tree so my dad ended up getting rid of it. I sure wish I had one right now because were about to get another winter storm with 8-10 inches of snow....
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Old 02-26-2013, 11:42 PM
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engine is pulled.



removed the oil pump and recoil





Here is what I found...







This is the one from my 04.







It appears someone has already swapped it to an 18 deg. the 18 deg. mag wouldnt work with a 14 deg stator would it? The date on the CDI from the parts sled was 07/13/2001 so it was a 02 model, which should of had the 14deg stator.. I'm trying to figure out how it could have run like this. BUT, the good news is, if it has a 18 deg stator and not just the mag. I will have a spare setup and I wont have to swap the stator to work with the 04 CDI.



Next, swapped my helix. figured I would post picture for those that have never pulled one from a TEAM clutch.


this shows the difference between a ER helix and a non ER helix.



and finished. Im running a TEAM 409 helix, on the 64-44-46 ramp side.

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Old 03-01-2013, 03:29 AM
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Pilot jets got in today...

My cdi showed up too!


Went to the dealer and looked up some part #'s, the 02 rmk 700 did infact use the 18deg stator. But I swapped it for my other one anyways, looks better (like looks matter) and cleaned up the housing to.


Should have the engine back in and everything hooked up and ready to go tomorrow, but I still need to get my buddy down at the polaris dealership to give me a hand rebuilding my rear shock before I do any test runs with it.... I just cant wait to get out and ride!
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Old 03-01-2013, 03:54 AM
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Do you have a go pro to go with the test runs? =D
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Old 03-01-2013, 05:59 AM
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I dont own one, but I'm sure one of my buddys would be willing to let me borrow one. I'll get vid of it rippin go pro or not.
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