fuel pump issues

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GaryBlonde340/S
Posts: 4
Joined: Thu Dec 17, 2009 7:35 pm
Location: Litchfield, MI

fuel pump issues

Post by GaryBlonde340/S »

Finished up rididng today and the Trailfire made it without any issues after 200 miles but my 80 Liquifire finished with issues. After investigating my problems, I came to the conclusion my fuel pump is bad (leaks around the pump and air bubbles in my fuel lines) hauling them home right now, just thought i'd ask where one would start to look for a new one? Is it a common Mikuni part that could be found from most snowmobile parts suppliers?
harleysportster
Posts: 2965
Joined: Thu Jul 14, 2005 12:00 am
Real Name: Pat Scott
Location: Southeast Pa.

Re: fuel pump issues

Post by harleysportster »

If your Trailfire has the rectangle style fuel pump. Here is a rebuild kit for it.
http://www.mfgsupply.com/m/c/07-449.html?id=ish9M7qZ
You should be able to get the kits from any of the major vendors.
'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
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kreechur
Posts: 86
Joined: Fri Sep 04, 2009 4:40 pm
Location: Watertown, Wisconsin

Re: fuel pump issues

Post by kreechur »

Obviously if the pump is leaking thats more than likely the problem, but one thing i've been burned on is overlooking the check valve filter in the tank. I've had them plugged with varnish before limiting fuel to the pump. Just an FYI.
  • 2 1970 Moto-Ski MS-18
    2 1969 Mercury 250ER
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    1 1979 JD Spitfire 340
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Horicon Joe
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Joined: Mon Jul 18, 2005 12:00 am
Real Name: Joe Wanie
Location: ROLLING PRAIRIE WI

Re: fuel pump issues

Post by Horicon Joe »

I always buy the new ones from DK that look similar to the one you have on your liquifire now. You have to make 2 spacers
for under the mounting flanges ..... I use two nuts larger than the bolts for the spacers. The hole pattern is exactly
the same. The only other thing you will need to do to the pump is unscrew all screws and rotate the pickup for the impulse
line 60 degrees and put it back together. They are under $30 and well worth the money.

Joe
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Invader440
Posts: 114
Joined: Sun Sep 07, 2008 12:00 am
Location: Fosston, Mn

Re: fuel pump issues

Post by Invader440 »

If the 80 Liquifire uses the same pump as the Invader/Intruder then Manufacturers Supply has a rebuild kit for it. Only thing isthat one of the gaskets is missing a hole that you have to add.
GaryBlonde340/S
Posts: 4
Joined: Thu Dec 17, 2009 7:35 pm
Location: Litchfield, MI

Re: fuel pump issues

Post by GaryBlonde340/S »

Thanks everyone for all your help! I just bought a new complete from DK for under $30.00. And like it was pointed out I had to put spacers under the bolt holes but the bolt spacing was dead on.

Thanks again, Gary
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