So today I worked on the trailfire today. I have a problem it starts with 1 pull on half choke good right. Well when I unchoke it the engine races can't figure out why?
So if someone could help that would be great.
Thanks
Need some help
- Packers29
- Posts: 219
- Joined: Sun Jan 12, 2014 11:28 pm
- Real Name: Andrew Engels
- Location: Green Bay Wisconsin
Need some help
1978 Liquifire 440
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire
-
- Posts: 1386
- Joined: Sat Dec 14, 2013 3:39 pm
- Real Name: Allan Campbell
- Location: Saint Peter MN
Re: Need some help
Your choke would be throwing more fuel at it (obviously) but how does your idle adjustment look?
1975 340/s Speed Run Sled
1975 340/s I500 #161
1980 Liquifire SN# 4995 From WA Speed Run Sled
1980 Liquifire SN# 4996 From MN
1983 Sportfire
1984 Liquifire Deep Snow Tunnel 4/6 motor
1984 Sprintfire (2)
***Duelling Deere Garage***
1975 340/s I500 #161
1980 Liquifire SN# 4995 From WA Speed Run Sled
1980 Liquifire SN# 4996 From MN
1983 Sportfire
1984 Liquifire Deep Snow Tunnel 4/6 motor
1984 Sprintfire (2)
***Duelling Deere Garage***
- Packers29
- Posts: 219
- Joined: Sun Jan 12, 2014 11:28 pm
- Real Name: Andrew Engels
- Location: Green Bay Wisconsin
Re: Need some help
What the service manual said 1 1/2 turns. But what I cant figure out is it runs fine on half choke but when taking that off it revs really high.
1978 Liquifire 440
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire
-
- Posts: 157
- Joined: Thu Dec 13, 2012 6:56 pm
- Location: Wisconsin
Re: Need some help
huge air leak?
Current:
77 John Deere Cyclone 440
98 Yamaha SRX700
1994 Arctic Cat Wildcat 700EFI
Past:
1968 Rupp GT300
1970 Evenrude Bobcat 440
1972 Ski-Doo 340 Silver Bullet
1976 Arctic Cat Cheetah 440
1976 Ski-Doo TN'T Everest 440
1978 Yamaha Exciter 440
1979? Yamaha Enticer 300
1979? Yamaha Enticer 250
1987 Polaris Sprint 340
77 John Deere Cyclone 440
98 Yamaha SRX700
1994 Arctic Cat Wildcat 700EFI
Past:
1968 Rupp GT300
1970 Evenrude Bobcat 440
1972 Ski-Doo 340 Silver Bullet
1976 Arctic Cat Cheetah 440
1976 Ski-Doo TN'T Everest 440
1978 Yamaha Exciter 440
1979? Yamaha Enticer 300
1979? Yamaha Enticer 250
1987 Polaris Sprint 340
-
- Posts: 1386
- Joined: Sat Dec 14, 2013 3:39 pm
- Real Name: Allan Campbell
- Location: Saint Peter MN
Re: Need some help
my next guess would of been an air leak like Viktory2k1 said, have you pulled the carb and cleaned her all up?
1975 340/s Speed Run Sled
1975 340/s I500 #161
1980 Liquifire SN# 4995 From WA Speed Run Sled
1980 Liquifire SN# 4996 From MN
1983 Sportfire
1984 Liquifire Deep Snow Tunnel 4/6 motor
1984 Sprintfire (2)
***Duelling Deere Garage***
1975 340/s I500 #161
1980 Liquifire SN# 4995 From WA Speed Run Sled
1980 Liquifire SN# 4996 From MN
1983 Sportfire
1984 Liquifire Deep Snow Tunnel 4/6 motor
1984 Sprintfire (2)
***Duelling Deere Garage***
-
- Posts: 2965
- Joined: Thu Jul 14, 2005 12:00 am
- Real Name: Pat Scott
- Location: Southeast Pa.
Re: Need some help
-Idle speed set to high
-Slide in the carb sticking
-Float level is high.
-Slide in the carb sticking
-Float level is high.
'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
- Packers29
- Posts: 219
- Joined: Sun Jan 12, 2014 11:28 pm
- Real Name: Andrew Engels
- Location: Green Bay Wisconsin
Re: Need some help
Yupp I Cleaned the carb soaked it up, ajusted the idle speed to what it said set the float 22mm from the gasket rib so its parallel, set the air screw 1 1/2 turns out. maybe i need to check the crank seals?
1978 Liquifire 440
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire
- jdrob
- Posts: 1212
- Joined: Thu Feb 25, 2010 1:23 pm
- Real Name: Rob
- Location: Pennsylvania/OHIO border
Re: Need some help
Check the rubber intake boot to see if it's cracked anywhere.
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Sent from my SM-N900V using Tapatalk
Jdrob
"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe." AE
"Two things are infinite: the universe and human stupidity; and I'm not sure about the universe." AE
- Packers29
- Posts: 219
- Joined: Sun Jan 12, 2014 11:28 pm
- Real Name: Andrew Engels
- Location: Green Bay Wisconsin
Re: Need some help
So I've decided to replace the crank seals. Since I don't know the history of the sled
1978 Liquifire 440
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire
1980 340 Trailfire
1981 Sportfire
1984 Liquifire
1984 Sprintfire
1984 Trailfire
1984 Snowfire
1984 Sportfire