Recently picked up a 2000 ZR 440 Sno Pro that was an ice oval race sled owned by Dan Devault which has been confirmed by him.  I don't know it's full racing history but it's sister sled is in the museum in Eagle River.  

https://www.worldsnowmobilehq.com/hq_snowmobile/2001-arctic-cat-zr-440-ed-devault-29/

Sled was trail ridden after being purchased from Devault Racing and had sat a few years recently.  Wouldn't start without pouring a little fuel down the cylinders and the choke on.  Compression tested good.  Brake was stuck.  Has an updated Cross Country CDI, V-Force reeds but other than that bone stock as they raced in the stock class.  Sled was fully intact with very minimal issues, the snow flap is f'ng mint... and I just could not walk away from it.  

Today was the first day really tearing into it.  Pulled the carbs which smelled like Assoline, got a really good look inside the tank and found some stank and debris in it I wasn't comfortable with so off came the seat, cowl and tank and everything in the fuel system is getting cleaned/replaced.  There was also a bit of water in the fuel.  Found the master cylinder a bit dirty, cracked open the bleeder and some foul crap came out.  Already ordered a new master and caliper seal kit from Wilwood to rebuild the caliper and if necessary replace the entire master.  Found a 2002 green tinted windshield on FB marketplace for a great price and nabbed it.  Not sure which shield we'll run on it yet but it didn't come with the original.  Will pull and check the reeds next week and address the utterly moronic recoil rope routing which has rubbed into (but not through) the fuel tank and oil tank.

I'm going to talk to Joe about adding a Tempaflow because I honestly hate fiddling with jets.  Down the road it's going to need the shocks gone through by Carver, go through the skid, maybe a little blasting and powder coating of the A-arms, handlebars and rails.  Just simple stuff to make it ridable and reliable as a 23 year old race sled can be.

This is going to be a project sled between my brother, his sons and I... which my brother doesn't know yet.  I'm giving it to him on his birthday.  So, at this point I'm going to make sure it's got go and whoa, then off to the east coast it's going to go for a family project.  My part of the deal will be... he just has to bring it back home to WI once a winter for me to ride with him and/or my nephews. 

Will add pics... 

  

Edited January 15, 20232 yr by Crnr2Crnr

On 1/4/2024 at 12:57 PM, Crnr2Crnr said:

he's putting in a stator (just in case?), pulling jugs and freshening the top end.  Lord only knows what else he'll do to it...

by the time it finally gets back here it'll probably have a spare mod motor in it.  

 

 

possibly a 720....

4 minutes ago, hayward said:

possibly a 720....

what's up there? 

20 minutes ago, Crnr2Crnr said:

what's up there? 

  Last I heard, he was tracking down a cylinder, as one was ported, and one was not.....

Edited January 5, 20241 yr by hayward

1 hour ago, hayward said:

  Last I heard, he was tracking down a cylinder, as one was ported, and one was not.....

I might know a guy with one... 

2 hours ago, Crnr2Crnr said:

I might know a guy with one... 

Well I havn't been pushing the issue tbh, between the struggles he has, and mine, snowmachining hasn't exactly been on the priorities list.  When he gets to it, he gets to it kind of thing.  I ain't pushy.

 

6 minutes ago, hayward said:

Well I havn't been pushing the issue tbh, between the struggles he has, and mine, snowmachining hasn't exactly been on the priorities list.  When he gets to it, he gets to it kind of thing.  I ain't pushy.

 

No worries bud.  I'll pm you some info if you need it.

 

Enigma has been a real journey thusfar... but thanks to 426ODR it's alive!!! 

Next up... seat cover, shocks to Carver, skis/carbides and a new track???

 

the short version of the rest of the story... there was all kinds of sin inside the engine and a few other little bugs still being sorted out.  for those who know who's done the work, he's the man. 

 

Blown motor will do it everytime

Doesn't sound like it's running quite right there 

23 hours ago, joe_zrt said:

Blown motor will do it everytime

wasn't 'blown' but someone had been in it once and did a very poor job reassembling it... missing bolts/screws, some not tight, quite a bit of sin.  it idled amazingly well for whatever odd reason? 

18 hours ago, mnstang said:

Doesn't sound like it's running quite right there 

Pipe temp sensor should be there today (hopefully the last f'ng piece of the puzzle), and he's going to adjust the jetting when the temps drop this fall.  Was 95F that day.   

3 hours ago, Crnr2Crnr said:

wasn't 'blown' but someone had been in it once and did a very poor job reassembling it... missing bolts/screws, some not tight, quite a bit of sin.  it idled amazingly well for whatever odd reason? 

Pipe temp sensor should be there today (hopefully the last f'ng piece of the puzzle), and he's going to adjust the jetting when the temps drop this fall.  Was 95F that day.   

Agreed.  I wouldn't change anything till the climate changes.

I still think you should buy the new in the box engine for that sled I found for you just in case for later years. You can store it with your ultra rare windshields