Sorry I've been sidetracked from my JD project for a while and i forgot about getting a new bumper. Can I send payment and still get one of these?

Here it is two years later and I'm still bringing this topic back up.... Snow will be flying soon and I'd like to get my Liquifire running good once and for all! Replacing my crank seals did help, and the sled does run great for 10-15 minutes now, but again after it gets hot i'm losing spark on one ...

thevintagesnowmobile, Do you still have the original CDI box on your engine? I believe so, I haven't replaced it but I don't know if the guy before me ever did. it is a Prestolite. I've read through several topics on this forum and in the FAQ section and I've narrowed it down to either the stator o...

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My 76 liquifire is doing the exact same thing as yours. I replaced the pto side crank seal and I thought it was fixed but it didn't last long. After riding it for a while one cylinder shuts down and it won't run on both cylinders again until it's cooled down. Please let us know what you find out wit...

Great News! Replacing the crank seal fixed the issue i've been having. I just picked it up from the small engine repair shop today and they had it all ready to go for me. I've been riding it around for the past 20 minutes or so and so far there hasn't been an issue. In the next few days I should get...

I've taken a few weeks off from the JD due to the holidays and my kids got sick..... I busted it back out and here's the latest: Based off of the comments I've had on this post and a lot of research online I've decided replacing the crank seal is the next step in troubleshooting this issue. These ar...

Alright... This morning I pulled the JD back into the garage and checked some of the things you guys have suggested. The choke cables and plungers seems to be functioning fine, seals also look fine on those. I did the crankshaft seal test with some wd40 and the motor revved up when sprayed on there....

are you loosing spark ? could be your high rpm coil on your stator ?? id get an inline ignition tester so you can watch the spark . how much compression does it have ?? I don't know if I'm losing spark. I will have to test that, I also am not sure on the compression. I don't have all the tools but ...

Spence, Does it run better when it is cold? Remove the choke plungers and inspect the rubber seals. If the rubber is worn, it causes a RICH carb condition. Check the free-play of the choke cables, there should be about 1/16 in. slack at the adjusters, when the choke is off. Check the condition of t...

What alt. are you & what Main Jets? Kenny 4465 ft. I don't remember the main jet size but I can take it apart again and look if you need to know. I figured the jetting should be fine because I bought the sled from the original owner that has always ridden it here where I live. (Logan, UT) I for...

Hey guys, I just picked up my '76 Liquifire 440 a couple weeks ago. I have taken the carbs apart and cleaned everything out, I put new spark plugs in, put fresh gas/oil in and replaced the fuel hoses etc.... I put everything back together and my sled runs AMAZING!! Sounds great, tons of power, runs ...

ICCSF 108 wrote:Spence, another thing I forgot to mention is going through the suspension arms making sure all the shafts are loose & lubed with some kind of low temp waterproof grease..

Kenny

Hey thanks a lot for all the info. I will be sure to check everything you've mentioned.

Spence, :welcome: It was nice talking to ya on the phone the other day. Hope that this forum can answer all your questions and help you find any parts that you'll need. The vintage JD thing is a good time. :sled: I looked up the Parts Unlimited # for the "passenger handles" that you asked...

Hey guys, A brief background of myself and my love for JD sleds. ... I'm a new member of this forum, however I've been a visiting here for a long time. Back in high school (2002) I found a '73 John Deere 400 sled buried under a bunch of junk in a barn at a farm I worked on. My boss gave it to me. My...