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Post by richardthescooter1 on Jun 11, 2013 12:24:38 GMT -5
Coming to work today, climbing a hill at wot and my scoot shut off  My buddy came over to help, as long as you put some gas in carb (diapragm) it will run until the gas is used up  and then were back to cranking again and no start  I think this time it is the fuel pump  Attachments:
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Post by spandi on Jun 11, 2013 12:26:50 GMT -5
Fuel filter? Vacuum lines?
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Post by richardthescooter1 on Jun 11, 2013 12:50:50 GMT -5
Hi spandi, as soon as I get scoot home I want to check the fuel line from gas tank first and then fuel filter. The scoots been doing this for some time now, it seems to have trouble at WOT, normally I can open diaphragm and give it a shoot carb cleaner, (today gave her some gas) and then she will start and keep running, but this time no go |
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Post by spandi on Jun 11, 2013 13:10:50 GMT -5
Hiya. Does it only do this going up a hill?
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Post by richardthescooter1 on Jun 11, 2013 13:20:12 GMT -5
For the most part, Yes.
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Post by spandi on Jun 11, 2013 15:43:37 GMT -5
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Post by scootnwinn on Jun 11, 2013 15:53:13 GMT -5
Did you pull the fuel line and crank it to be sure it is delivering?? Might save you a buck to check it...
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Post by richardthescooter1 on Jun 11, 2013 16:31:50 GMT -5
Not yet scootnwinn, I can't get my scoot until tomorrow morning, Yes I'll check that out (thanks) The way I'm looking at this, there are three possibilities 1. something in gas tank blocking fuel  2. fuel pump shoot , or 3. clogged fuel filer  because if you put a little gas in carb diaphragm it will start and run until it uses up that little bit of gas then shut off and you can crank,crank and crank. No start  |
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Post by spandi on Jun 11, 2013 17:31:12 GMT -5
But how could you tell if it is getting fuel when it only happens going up a hill?
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Post by barnie on Jun 11, 2013 19:51:08 GMT -5
Richard, my 1st guess is you  have been just running out of gas at wot up a hill. At that point the vacumn the engine is putting out is very low and may not have been enough to deliver the fuel to the carb or you have a slight vac leak in the line from manifold to pump. I have a JCL MP250a with the linhai 257 engine and I had fuel delivery issues so several yrs ago changed over from vac pump to elec pump and the issues disappeared instantly. JUst unhook the line at carb and crank over and see if you get any gas as if you do you very well may have a vacumn issue. Let us know how u make out. Barnie |
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Post by rockynv on Jun 12, 2013 1:00:14 GMT -5
Also you may need to check you valve adjustment. As they open get out of adjustment you will end up loosing a good pulse in the intake to run a vacuum pump. Ethanol also degrades the preformance of vaccuum pumps so a good fuel system cleaner can help minimize the effects.
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Post by richardthescooter1 on Jun 12, 2013 7:25:49 GMT -5
Thanks barnie & rockynv, checking today and I'll let you guys know whats going on.
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Post by richardthescooter1 on Jun 12, 2013 10:30:34 GMT -5
Help me understand what is going on with this scooter  Yesterday going to work and just climbing up hill at WOT my scoot choked and shut off  took diaphragm cap off carb put gas in and scoot would start until the gas i just put in ran out (useally this works and I'm on my way again) this time it didn't work, tried several times, so left set over night at my buddies house and pick scoot up this morning. Got her home and my buddies said to mr try to start and see what happenes (Yep fire right up like nothing was wrong at all) I'm confuse My buddy suggested maybe vacuum or vapor lock I don't know what to think, anyone have any ideas? |
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Post by scootnwinn on Jun 12, 2013 10:32:34 GMT -5
Almost sounds like an electrical gremlin
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Post by richardthescooter1 on Jun 12, 2013 11:00:22 GMT -5
I know I was getting spark when putting gas in yesterday, in the passed year and half I've replced CDI, Ignition Coil, spark plug, and cap, all fuel line, all vacuum lines, fuel filter. had trouble with 3 way electrical plug, replace those. Replace my intake menfold, cleaned and oiled air filter. About the only thing I didn't replace was fuel pump and the vapor hose from gas tank to the vapor canister.
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and then were back to cranking again and no start 
