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Motorized Bicycle Trouble Shooting Use this area to post problems that may arise that you could use some help in figuring out what is wrong with their bicycle motor and what needs to be done to achieve top performance.

Bike Stops when Starting


Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle Trouble Shooting forum. Probably not your solution but not long ago I screwed in the clutch cable guide too far and it locked ...
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  #11 (permalink)  
Old 10-23-2009, 10:56 AM
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Default Re: Bike Stops when Starting

Probably not your solution but not long ago I screwed in the clutch cable guide too far and it locked the motor up solid.
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  #12 (permalink)  
Old 10-23-2009, 12:53 PM
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Default Re: Bike Stops when Starting

Quote:
Originally Posted by VENICE BOY View Post
Don't disengage the sprocket!! I want to know if there is anything wrong in the engine... so, spin the wheel to make the engine spin!
The engine should turn over very easy!

ALSO... check in the magnito cover for any possible problems.

I did all that was suggested. Remove the plugs, check magneto, re-align...etc. Wow...the engine starts and the wheel did not locked up. I do not know what I did in the beggining why it did not start from the first time though...But I felt so relieved when it starts...

Now, here is another issue. The bike does not idle! When I release the throttle the engine stops. When I turn the throttle half way the bike does very minimal idling. It seems out of air and chocking. Then when it is in full throttle then it goes to full RPM and the bike zooms. I check the carburator slider and made sure the pin is inside the hole. I am pretty sure of this becuase the slider dropped all the way to the bottom. Then i checked the spring and the throttle return it seems fine. Any idea what is going on? Thanks.
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Old 10-23-2009, 01:32 PM
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Default Re: Bike Stops when Starting

Is the choke lever down???

How much oil did you mix in the gas???

What's the plug gap?

Also, turn the idle screw in to keep the idle up.
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Last edited by Venice Motor Bikes : 10-23-2009 at 01:37 PM.
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Old 10-23-2009, 01:40 PM
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Default Re: Bike Stops when Starting

Here's a good one that I just thought of... Is the carb needle 'C' clip above or below the little washer with the slot in it?? The washer is supposed to hold the needle down!
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Old 10-23-2009, 03:18 PM
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Default Re: Bike Stops when Starting

Quote:
Originally Posted by VENICE BOY View Post
Here's a good one that I just thought of... Is the carb needle 'C' clip above or below the little washer with the slot in it?? The washer is supposed to hold the needle down!
The C clip is above the E clip.
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Old 10-23-2009, 03:23 PM
Kevron99's Avatar
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Default Re: Bike Stops when Starting

Quote:
Originally Posted by VENICE BOY View Post
Is the choke lever down???

How much oil did you mix in the gas???

What's the plug gap?

Also, turn the idle screw in to keep the idle up.
Whoah...technical question. I hope I can answere them all...here it is.

How much oil...16.1 this is what the instruction says on my kit

Whats the plug gap? I am totally clueless. I do not know the specs. The kit instructions do not mention this.

I do not know where the idle screws are? where are they btw?

How about the choke lever? is this the white lever? if so I had it down when starting.

Sorry I am really new to all this things......

Last edited by Kevron99 : 10-23-2009 at 03:25 PM. Reason: spelling
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  #17 (permalink)  
Old 10-23-2009, 06:22 PM
Venice Motor Bikes's Avatar
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Location: Los Angeles, CA.
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Default Re: Bike Stops when Starting

Quote:
Originally Posted by Kevron99 View Post
Whoah...technical question. I hope I can answere them all...here it is.

How much oil...16.1 this is what the instruction says on my kit

Whats the plug gap? I am totally clueless. I do not know the specs. The kit instructions do not mention this.

I do not know where the idle screws are? where are they btw?

How about the choke lever? is this the white lever? if so I had it down when starting.

Sorry I am really new to all this things......
Ok... lets go through these one at a time...

16:1 is way too much oil!!! Use 24:1.... 16:1 is for the old days when they used to mix motor oil in the gas!!! now a days we have 2-stroke oil, & you don't need as much of it in the gas!

Next, Plug gap should be .030 ish.

The white lever is a fuel shut off valve. point it down for "on", (sideways for "off") There is another metal lever just above that one... that's the choke. point it down also!!!

Try these things & see how the bike runs.
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  #18 (permalink)  
Old 10-31-2009, 09:22 AM
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Default Re: Bike Stops when Starting

hopefully you got her by now, but if not and you followed the advice of venice,.,,.try re-adjusting your clutch pack,.,.my last build had simular clutch issues. But first check sprocket alignment and Also de-burr the pinion sprocket as it can lock up the chain during rotation. It also may have the piston wedged at TDC due to the squish so use caution when you assist it's cycle down, you may just remove the head and check for shiny areas or flattened lip on the head where improper milling may have taken place, or just an over-torqed head bolt. I concur on the ratio, all my 2 strokes run 927 @ 32:1 with your set up it's fighting to ignite fuel and will almost always foul out or just puke unburnt fuel all over your shoes,.,.GL Stuk
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Last edited by JD-StukNchaoS : 10-31-2009 at 09:53 AM.
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