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harder to start when hot????????

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Old 09-09-2009, 11:32 PM
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dakamat
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Default harder to start when hot????????

My LRP ZR30 start at first pull when cold, but when it's hot, it's a realy pain to re-start.

WHY[:@]
Old 09-10-2009, 05:36 AM
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jayjeff333
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Default RE: harder to start when hot????????

Tighten up your needles. Take away some gas.
Old 09-10-2009, 06:28 AM
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dakamat
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Default RE: harder to start when hot????????

i'll try it tonight, thank you
Old 09-10-2009, 05:49 PM
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BudBud
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Default RE: harder to start when hot????????

It might help, but I doubt it. If yours is like mine, when it gets hot or warm, the carburetor is not insulated and boils the fuel back, when it dies or runs out of fuel. Look at the fuel line going into the carburetor and I will bet you see air bubbles. I just carry a foot or three of fuel line, unhook at the tank lid and prime with the long line, then plug the 053 back in. Glen
Old 09-10-2009, 05:53 PM
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dakamat
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Default RE: harder to start when hot????????


ORIGINAL: BudBud

It might help, but I doubt it. If yours is like mine, when it gets hot or warm, the carburetor is not insulated and boils the fuel back, when it dies or runs out of fuel. Look at the fuel line going into the carburetor and I will bet you see air bubbles. I just carry a foot or three of fuel line, unhook at the tank lid and prime with the long line, then plug the 053 back in. Glen
Yes BudBud, i've try it after the job tonight, and when hot, i can ear the fuel boil in the carb.

I can't prime it blowing in the pressure line, because the line is way too hot[X(]
I've did exactly what you say, take a spare fuel line and prime it with them, et voila!!!!! the engine start like a charme!

Thank you
Old 09-10-2009, 06:36 PM
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del1969
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Default RE: harder to start when hot????????

just wait 5 min for it to cool off.
Old 09-10-2009, 08:27 PM
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93dabeast
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Default RE: harder to start when hot????????


ORIGINAL: BudBud

It might help, but I doubt it. If yours is like mine, when it gets hot or warm, the carburetor is not insulated and boils the fuel back, when it dies or runs out of fuel. Look at the fuel line going into the carburetor and I will bet you see air bubbles. I just carry a foot or three of fuel line, unhook at the tank lid and prime with the long line, then plug the 053 back in. Glen
do i blow into the line? how do i do this?

Old 09-10-2009, 09:23 PM
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PrjctStrtFrce
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Default RE: harder to start when hot????????

ahhh, nice, so I'm not crazy. I've noticed this with mine as well. It starts on the first pull when cold, but when it is warm it takes some cranking, probably because it doesn't have enough fuel.

Get some spare fuel tubing, take off the fuel tubing that is on the fuel tank cap, put on your spare fuel tubing, blow until you see fuel in the other tubing hit the carburetor.
Old 09-10-2009, 10:11 PM
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dakamat
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Default RE: harder to start when hot????????


ORIGINAL: del1969

just wait 5 min for it to cool off.
I like to run 4-5 tank one after the other
Old 09-10-2009, 10:36 PM
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SLAYERDUDE
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Default RE: harder to start when hot????????

Me too!
I never shut it down...
Just stick more fuel in there and keep havin fun!
Old 09-10-2009, 10:36 PM
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Default RE: harder to start when hot????????


ORIGINAL: dakamat


ORIGINAL: del1969

just wait 5 min for it to cool off.
I like to run 4-5 tank one after the other
Fill it up while it is still running and you wont have to restart it.
Old 09-10-2009, 10:44 PM
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Default RE: harder to start when hot????????

This is called vapor lock or flaming out, generally when the engine is ran really hot (but not always) and it dies because the fuel boils. It is hard to start because the engine was soo hot and the fuel boiled once it hit the carb. Genious idea for composite/plastic body carbs rather than aluminum. You can get a can of co2 and spray the carb off with it and that will cool it down fast. Thats what I heard at least some people do.
Old 09-11-2009, 06:06 AM
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dakamat
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Default RE: harder to start when hot????????

yes the carb is aluminium on the LRP, but i never ran it very hot, i keep it in the 220-250 range

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