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Old 01-13-2010, 06:53 PM   #1 (permalink)
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JD LiquiFire 440

Have two 1979 John Deere Liquifire 440s I've been robbing parts off one to use on the other. Finally got the motor running great but as soon as you put on the CVT belt it doesn't want to work correctly. I've found a new belt up north and its being shipped.

Can a belt shrink up? I'm sure its the original belt, or close too. The primary sheave seems to be engaging correctly its the secondary sheave that i'm not sure on. And if a belt can shrink up would a new one correct it? I have just barely an inch of play and its the correct 1.25 width.

All so can anyone tell me where to find OEM parts to get the other running? Everything on the engine says Kawi but from my understanding they wrote everything over to Polaris.
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Old 01-14-2010, 09:48 AM   #2 (permalink)
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That would be a Kawi! About all that could be done is maybe go to a JD dealler and spend some time? What are you needing? What is it doing with the belt on? Did you clean the carbs and replace the little orings on the bottom of the main jets?
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Old 01-14-2010, 08:05 PM   #3 (permalink)
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Step ahead of you. I work at a JD dealer, these are my bosses and he's had them since they were new. The problem we're having is Deere doesn't back these anymore, don't sell any parts for them. All so these CVT systems differ from our gators. No tools nor the clutches interchange. They haven't ran right for the past ten or so years, so my goal is to get these things, or at least one, running flawlessly.

Got the new belt in today, actuall John Deere belt that dates back a long time ago... And it still won't take off and go. If I remove engine drive belt the engine will rap out fine, but the primary clutch kinda pops over a center? then as engine speed increases it'll move in toward the engine.

As soon as the engine drive belt is put on and i start it up, with it sitting on jack stand, the engine wont rap out and the primary sheave won't move like it needs to. If I remove the clutch it moves nice and smooth with some added force.

again yall any ideas are appreciated
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Old 01-14-2010, 08:41 PM   #4 (permalink)
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Possible fouled plug.
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Old 01-14-2010, 10:35 PM   #5 (permalink)
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Like said above, see if one plug is allwet/oily looking. If so, change it. Comet made a clutch for that sled.
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