80 LF won't stay running
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- Real Name: Ryker Carruthers
- Location: Lenox, IA
80 LF won't stay running
Okay, I've got an 80 liquifire here that's been giving me fits for quite some time. I got discouraged and walked away from it for a year. We'll now I'm here ambitious again.
Yesterday I went out for a cruse on dad's TF, throttle cable broke so I got it home and I looked over at the liquifire. It had good gas in it, so I turned the key, pulled it 3 times and damn it started, had the feather the throttle to keep it alive, I kept it right around 4,000 rpm, it ran for a whopping 30 seconds. Then it petered out and just lost it. Never moved the throttle from where it was, it just died. As the rpms cake down it popped a little, and after that you could pull it and it would only make pop. Never take off running again. It had a blueish spark when dead cold, after you had it running it went to a whiteish. I swapped the CDI to a known good one and the same thing. Although it seemed to start easier.
It does have new crank seals, the carbs are mint, new jets, set to the book, air screw at 1.5 turns out. I even verified I had the right carb on the right side. It has new weights in the flywheel and new spring.
Could my problem be in the stator?
Thank you
Ryker
Yesterday I went out for a cruse on dad's TF, throttle cable broke so I got it home and I looked over at the liquifire. It had good gas in it, so I turned the key, pulled it 3 times and damn it started, had the feather the throttle to keep it alive, I kept it right around 4,000 rpm, it ran for a whopping 30 seconds. Then it petered out and just lost it. Never moved the throttle from where it was, it just died. As the rpms cake down it popped a little, and after that you could pull it and it would only make pop. Never take off running again. It had a blueish spark when dead cold, after you had it running it went to a whiteish. I swapped the CDI to a known good one and the same thing. Although it seemed to start easier.
It does have new crank seals, the carbs are mint, new jets, set to the book, air screw at 1.5 turns out. I even verified I had the right carb on the right side. It has new weights in the flywheel and new spring.
Could my problem be in the stator?
Thank you
Ryker
When In Doubt, Throttle Out
Re: 80 LF won't stay running
Sounds like you have ignition but may be loosing fuel. Check the plus and see if they are wet. If they are and it's flooding you may need to go back through the carbs (Check the needle/seats, set the choke plungers correctly, etc.) If they are dry and it's running out of gas you might want to look at the fuel pump and lines. Has the pump ever been rebuilt? If you haven't checked the lines and pickup in the fuel tank I would do that as well. Check the impulse line from the pump to the crankcase. Get new lines on everything if you haven't done so. It could be simply loosing it's prime. Check the carb boots and make sure they aren't leaking and are in good shape. It's also much easier to get one started with a full tank of gas the first time for the year, especially if you've drained the gas out last spring. So many times the problems with the liquifire's are people don't take the time to go through everything thoroughly. These things are old and it takes more than clean carbs to make one dependable. Not saying this describes you, just saying the kawi's get a bad rap for being finicky, but it's usually setup problems and/or things left unchecked that keeps them from being good starting, good performing engines. Get a manual if you don't have one.
Good Luck
Dale
Good Luck
Dale
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Re: 80 LF won't stay running
Thanks dale, I've got a book on it and tried everything I can think of, it has a new fuel pump and new lines. I've gone over them a few times to be sure of no leaks etc, the boots are new. When it dies the plugs are damp, not wet like flooded but normal damp. It has a 1/4 tank of fuel in it but I can fill it on up. When I pull the plugs after its been running usually smoke still comes out of the cylineders. The choke plungers are set as per the book, are you saying pull the carbs after its been running and see if the bowls are dry??
Thank you, Ryker
Thank you, Ryker
When In Doubt, Throttle Out
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Re: 80 LF won't stay running
I've got another stator here. Should I put it in and give it another try?
When In Doubt, Throttle Out
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Re: 80 LF won't stay running
Try unplugging rev limiter also.
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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
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Re: 80 LF won't stay running
Did you clean the carbs again since it failed to start? A year of storage is too long and will require another cleaning.Ryker Carruthers wrote:Okay, I've got an 80 liquifire here that's been giving me fits for quite some time. I got discouraged and walked away from it for a year. We'll now I'm here ambitious again.
Yesterday I went out for a cruse on dad's TF, throttle cable broke so I got it home and I looked over at the liquifire. It had good gas in it, so I turned the key, pulled it 3 times and damn it started, had the feather the throttle to keep it alive, I kept it right around 4,000 rpm, it ran for a whopping 30 seconds. Then it petered out and just lost it. Never moved the throttle from where it was, it just died. As the rpms cake down it popped a little, and after that you could pull it and it would only make pop. Never take off running again. It had a blueish spark when dead cold, after you had it running it went to a whiteish. I swapped the CDI to a known good one and the same thing. Although it seemed to start easier.
It does have new crank seals, the carbs are mint, new jets, set to the book, air screw at 1.5 turns out. I even verified I had the right carb on the right side. It has new weights in the flywheel and new spring.
Could my problem be in the stator?
Thank you
Ryker
You can ohm out the stator using these specs.
Do you have the choke plungers set correctly?
Do you have fuel to the carbs?
I have seen the floats stick closed from long-term storage.
'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)
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Re: 80 LF won't stay running
I have not cleaned the carbs since I had them off last. I can if you recommend it though, and yes the choke plungers are set correctly
Thank you for the stator specs! I do have fuel to the carbs. I know that for sure. I will get a DVOM home and check it out. Thank you harley!
Thank you for the stator specs! I do have fuel to the carbs. I know that for sure. I will get a DVOM home and check it out. Thank you harley!
When In Doubt, Throttle Out
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Re: 80 LF won't stay running
I had jets clog up from sitting around. The gas I use has the typical 10% blend with of ethynol.
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'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)
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- Real Name: Ryker Carruthers
- Location: Lenox, IA
Re: 80 LF won't stay running
I don't run ethanol in mine, 93 octane non alcohol. I'll take them off and give them a good cleaning. I just don't think that's it because it did the exact same thing last year when I was tinkering with it. Ran the same etc
When In Doubt, Throttle Out
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Re: 80 LF won't stay running
Okay, I can't read that diagram. Anyway to clear it up?
When In Doubt, Throttle Out
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Re: 80 LF won't stay running
I believe that diagram is from a Kawasaki Invader repair manual.
You can download the manual at Vintagesnow.com
You can download the manual at Vintagesnow.com
Several Deere's
Several Kawasaki's
ACSCC #1534
Several Kawasaki's
ACSCC #1534
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Re: 80 LF won't stay running
Did you check the ignition coil, it could be failing after heating up and produce weak spark.
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***
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Re: 80 LF won't stay running
It has a new ignition coil. I will check out the invader manual.
When In Doubt, Throttle Out