First Time Rider
Arm chair racerNew to the board
One of my 70’s start first or second pull every since I got it. The problem is after I’ve ran it for ten minutes or so (approx...may be less) it will either stop or if I turn it off, then it becomes hard to start. I’m thinking it may be a fuel problem. It has new fuel lines, tank is clean, carb is clean. I’m going to change fuel filter and open to suggestions.
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Roostin' Away
Arm chair racerRoostin Away
I am kinda thinking maybe the gas cap is not venting properly.
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'83 200X
Chicks love guys that ride trikes
First Time Rider
Arm chair racerNew to the board
Interesting. I’ll swap out the cap and try that.
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Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers.
Catch me if you can
Very likely the valves need to be adjusted.
Last edited by fabiodriven; 02-16-2018 at 09:34 PM.
85 Tri-Zinger 60
85 ATC250SX
86 ATC250SX
87 ATC250SX
02 XR650L conversion
84 ATC 480R
Roostin' Away
Arm chair racerRoostin Away
We've had this happen. How's your plug look after those 10 minutes?Originally Posted by Rob Canadian
First Time Rider
Arm chair racerNew to the board
I haven’t checked the plug, I’m out of town right now, but what should I look for? What happened to yours?
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Power User
Teaching quads a lesson
Ding, ding, ding for Fabio! Valves are probably set too tight making you lose compression as the metal expands.
Trikes
1970/71 US 90 (Aquarius Blue)
1970/71 US 90 (Future Project)
1972/73 US 90 Camo Project (110 Big Bore)
1972/73 US 90 Green
1982 ATC 70
1983 ATC 70 (Ladybug)
1973 ATC 70
1965 Marketeer 3 Wheel Golf Cart with 1986 Honda 250 drivetrain
TF 2015
Other
1983 Honda Z50
Feedback http://www.3wheelerworld.com/showthr...ck-for-coopool
http://www.3wheelerworld.com/showthr...k-for-coolpool
Roostin' Away
Arm chair racerRoostin Away
A vapor lock on your gas cap won't allow fuel to flow, usually happens after a short time of riding and she'll just stall out..
Your plug should be light tan, you don't want white or black and oily or sooty, light tan in color is a good burning plug. But you should also check your valves like the others said.
First Time Rider
Arm chair racerNew to the board
I’m heading back home later this afternoon. If the plug is black or other, what should I check?
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Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers.
Catch me if you can
Honestly I'd skip the plug and just adjust the valves. It's very easy to do and your most likely problem. It would be the first logical step.
85 Tri-Zinger 60
85 ATC250SX
86 ATC250SX
87 ATC250SX
02 XR650L conversion
84 ATC 480R
First Time Rider
Arm chair racerNew to the board
Okay. I don’t have my manual on me, but just to keep my mind busy on the drive, it’s .005 on the intake and outtake right? If I remember correctly.
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Roostin' Away
Arm chair racerRoostin Away
05mm or .002in on the valve tappet clearance.
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90 nickolson Bored and Stroked "The Good"
Big Bore 110 Pauter frame "The Bad"
90 Bored and Stroked “vey’s frame” "The Ugly"
110 JSC frame Bored and Stroked
flat track build. “Shop trike”
1974 original 90 X 2
1974 Original 70.
Just Too Addicted
Arm chair racerJust too addicted
Do you have a factory air filter on this trike? Do these 70's use traditional points and condenser? I suspect some overheating, valves do seem probable. Did it ever restart good? We want some plug pictures too!
Aspiring romance novel cover model, and the Official 3WW slayer of thieves and swindlers.
Catch me if you can
He didn't say anything about overheating, I don't know why you would suggest that. Every laydown engine I've had has done this at one time or another. It's a routine adjustment to account for normal wear and tear.
85 Tri-Zinger 60
85 ATC250SX
86 ATC250SX
87 ATC250SX
02 XR650L conversion
84 ATC 480R
Just Too Addicted
Arm chair racerJust too addicted
I have had trouble restarting 4 stroke motors that i know were slightly overheated. Thats why i said that.
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