1977 340 liquifire project

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mattwolfe
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Real Name: matt
Location: PA

1977 340 liquifire project

Post by mattwolfe »

340 liquidfire3.jpg

Hi Im the new owner of this liquifire i got it for $100 its free but doesn't run he said it ran when he parked it This is my first sled and i have many question like

In the service manual it says to us leaded gas what do you guy use as far as fuel?

How do i remove the seat?

Im going to get it this weekend so all have many more question then thanks
harleysportster
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Real Name: Pat Scott
Location: Southeast Pa.

Re: 1977 340 liquifire project

Post by harleysportster »

Matt,
If you can find regular leaded gas, go for it. With today's gas, running unleaded is fine.
The seat slides intro clips behind the fuel tank and is bolted to the rear of the tunnel. Lift up the snow flap and look for the small bolts, one on each side, just inside the tunnel.
'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
mattwolfe
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Location: PA

Re: 1977 340 liquifire project

Post by mattwolfe »

I got it today! and i got it running! but it seems to have a loss of power sometimes sometimes it goes to 7000 and has tons of power! but the next it seems bogged down and will not go over 4000 so is it spark or fuel ? im cleaning the carbs now any help will be appreciated thanks.
harleysportster
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Real Name: Pat Scott
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Re: 1977 340 liquifire project

Post by harleysportster »

It is great that you have it running, clean the carbs thorouly, then replace the crankshaft seals before riding it.
'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
mattwolfe
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Joined: Thu Jan 08, 2015 8:59 pm
Real Name: matt
Location: PA

Re: 1977 340 liquifire project

Post by mattwolfe »

I see that everyone one the this site seems to replace those seals alot why is it so important?
mattwolfe
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Re: 1977 340 liquifire project

Post by mattwolfe »

smaller sled.jpg
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nick80lf
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Location: The snow free zone of Ohio

Re: 1977 340 liquifire project

Post by nick80lf »

mattwolfe wrote:I see that everyone one the this site seems to replace those seals alot why is it so important?

To prevent this:

[attachment=-1]uploadfromtaptalk1424564509882.jpg[/attachment]

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80 Liquifire (purchased 1996 ~ Running)
80 Liquifire (purchased 2010 ~ Running....Now)
80 Liquifire (purchased 2011 ~ Not running - I officially have a problem now)
83 Snowfire (purchased 2014 father/son restoration project)
78 Spitfire ~ sold (should have been shot for this)
JDT
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Real Name: Todd
Location: Milbank South Dakota

Re: 1977 340 liquifire project

Post by JDT »

Perfect explaination Nick. :bonk:
Todd Schrupp

Milbank SD
harleysportster
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Location: Southeast Pa.

Re: 1977 340 liquifire project

Post by harleysportster »

I will briefly explain. A 2 stroke engine has a completely different combustion sequence than a 4 stroker. Fuel is drawn from the carb from the vacuum of the piston stroke as it is moving up. The fuel is drawn thru the crankcase. This is achieved since the crankcase is sealed from the outside environment by the crankshaft seals. As the seals age, they break down. Once this happens, air will be sucked in from the outside, leaning out the fuel mixture which will cause serious damage. It is best to replace crank seals on any 2 stroke engine if you do not know the history of any repairs. An engine setting for many years will probably have dried out, cracked crank seals.
'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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PolCat
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Location: Green Bay, Wi

Re: 1977 340 liquifire project

Post by PolCat »

1976 Liquifire 440 Would run at low rpm but wouldn't hit the high note :whistle:
That's the bearing race your looking at :naughty:
Image
"There's No Iron Like Old Iron"
mattwolfe
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Location: PA

Re: 1977 340 liquifire project

Post by mattwolfe »

Where do i get brake pads for this sled? ebay? there isnt many there. whats the best place?
harleysportster
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Joined: Thu Jul 14, 2005 12:00 am
Real Name: Pat Scott
Location: Southeast Pa.

Re: 1977 340 liquifire project

Post by harleysportster »

Newbdeeds.com
'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
harleysportster
Posts: 2965
Joined: Thu Jul 14, 2005 12:00 am
Real Name: Pat Scott
Location: Southeast Pa.

Re: 1977 340 liquifire project

Post by harleysportster »

'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
User avatar
PolCat
Posts: 82
Joined: Sun Feb 03, 2013 4:56 pm
Location: Green Bay, Wi

Re: 1977 340 liquifire project

Post by PolCat »

"There's No Iron Like Old Iron"
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PolCat
Posts: 82
Joined: Sun Feb 03, 2013 4:56 pm
Location: Green Bay, Wi

Re: 1977 340 liquifire project

Post by PolCat »

They don't show brakes for the 77 LF
New Breed Brakes

It does show these which look like the ones I found Brake Pad Set - Kawasaki Invader, Intruder
Image
"There's No Iron Like Old Iron"
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