Pull cord very stiff - Pocket Bike Forum - Mini Bikes
 
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post #1 of 7 (permalink) Old 02-04-2019 Thread Starter
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Pull cord very stiff

Can anyone help me out please?
I have a mini moto 50cc Chinese motor bike. It’s a 2015 Orion.
I have only recently tried to start it for the season .The pull corn is jerking a lot when I pull it. I’ve checked and it pulls out perfectly when I take the plug out.However when i begin to screw the plug back in it starts to get jammed. The plug is new and has a great blue spark when it is not screwed in. There Are no broken parts or jamming pistons or fly wheel.its a compression issue I think. I put a bit of oil into the plug hole to help lubricate the pistons but this hasn’t helped when I pull the cord.
Any ideas guys? It must have to do with air and fuel but how do I fix it?

Last edited by Barney522; 02-04-2019 at 02:54 PM. Reason: Spelling mistake
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post #2 of 7 (permalink) Old 02-04-2019
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Im no expert but they do this when you have flooded the engine, try cranking it a few times with plug out and fuel tap off to clear it and try again, if it continues it suggests an internal problem/over fueling possibly.
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post #3 of 7 (permalink) Old 02-04-2019
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Re: Pull cord very stiff

Those carbs flood those engines very easily and the overflow ends up in the J-Bend of the pipe...Try loosening the screws to the exhaust pipe or remove the pipe to clear out the fuel thays built up...

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post #4 of 7 (permalink) Old 02-04-2019
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more then likely it's all gumed up from sitting and not being foged and properly winterized with the piston at bottom dead center dump about 1oz of fuel down the spark plug hole then pull the rope 15 or 20 times to clear the fuel out let it sit in a warm environment for a couple hours well you pull the exhaust off dump some fuel down the exhaust and shake It then dump the fuel out of the exhaust and put it back on the bike throw a new plug in it and as long as the jet in the carburetor is not clogged up it should start right up...

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post #5 of 7 (permalink) Old 02-05-2019 Thread Starter
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Re: Pull cord very stiff

Quote:
Originally Posted by Sylosmart View Post
Im no expert but they do this when you have flooded the engine, try cranking it a few times with plug out and fuel tap off to clear it and try again, if it continues it suggests an internal problem/over fueling possibly.
Thanks for your advice Iíll have a go later on today and let you know the outcome is.
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post #6 of 7 (permalink) Old 02-05-2019 Thread Starter
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Re: Pull cord very stiff

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Originally Posted by CAM2 View Post
Those carbs flood those engines very easily and the overflow ends up in the J-Bend of the pipe...Try loosening the screws to the exhaust pipe or remove the pipe to clear out the fuel thays built up...
Thanks ...Iíll have a look at bike later on.
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post #7 of 7 (permalink) Old 02-05-2019 Thread Starter
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Re: Pull cord very stiff

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Originally Posted by MrKitty View Post
more then likely it's all gumed up from sitting and not being foged and properly winterized with the piston at bottom dead center dump about 1oz of fuel down the spark plug hole then pull the rope 15 or 20 times to clear the fuel out let it sit in a warm environment for a couple hours well you pull the exhaust off dump some fuel down the exhaust and shake It then dump the fuel out of the exhaust and put it back on the bike throw a new plug in it and as long as the jet in the carburetor is not clogged up it should start right up...
Great advice.thanks...appreciate the help.
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