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2 Stroke Bicycle Engines & Kits 2 stroke engine kits need careful installation and setup, find out how from our professionals here!


Choke

2 stroke engine kits need careful installation and setup, find out how from our professionals here!


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  #1  
Old 11-24-2009, 08:34 PM
I Love My Bicycle I Love My Bicycle is offline
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Default Choke

I understand that the choke is supposed to be up when starting the engine.

When do I lower it? When the engine has warmed up?

And how much to lower?

Thanks.
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Old 11-24-2009, 08:53 PM
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Default Re: Choke

I will lower mine within a minute, depending on how cold it is I may run with half to 3/4 choke for a few minutes and then all the way down.
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Old 11-24-2009, 08:55 PM
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Default Re: Choke

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Originally Posted by Ghost0 View Post
I will lower mine within a minute, depending on how cold it is I may run with half to 3/4 choke for a few minutes and then all the way down.
Thanks.

BTW, what the heck is the purpose of a choke?
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Old 11-24-2009, 08:58 PM
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Default Re: Choke

When an engine is cold and has been sitting you want to create a rich or excess fuel condition for starting. The choke does exactly that, it chokes your engine from getting the correct amount of air creating a rich fuel condition. This ensures that fuel gets to the combustion chamber.
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Old 11-24-2009, 09:02 PM
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Default Re: Choke

Quote:
Originally Posted by Ghost0 View Post
When an engine is cold and has been sitting you want to create a rich or excess fuel condition for starting. The choke does exactly that, it chokes your engine from getting the correct amount of air creating a rich fuel condition. This ensures that fuel gets to the combustion chamber.
Perfectly clear. Thanks.
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Old 11-24-2009, 09:30 PM
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Default Re: Choke

Put the choke up and start it and after a minuite put choke down.
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Old 01-25-2010, 01:48 PM
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Default Re: Choke

is it only me or does this happen to anyone else? when i ride my motorized bicycle all of a sudden it will start surging and losing power, when i stop to check it out i find that my leg brushed the choke lever and put it on (all the way up) any ides on how to fix this? i was thinking of just taping it down as i only use it to kill the motor, and i always have a roll of tape in my bag
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Old 01-25-2010, 03:07 PM
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Default Re: Choke

if you take the air filter off you will se a nut that holds the choke lever on. tighten it up a bit. my motorized bicycle would actually vibrate the choke into the on position till I done this. The nut will make the choke action a little tighter but then the choke lever will stay where you put it. It doesn't take much tightening though. just enough to make the lever stay where you put it.
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Old 01-25-2010, 03:14 PM
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Default Re: Choke

the so cal mod, made popular by Norm from Venice Motor bikes, is to hook a rubber band to the choke lever, and then to the motor mount or something. it's classic old school ghetto-tech.

or just tighten it.

i was having a similar problem. i had an aftermarket petcock on the gas tank, and it stuck out at a weird angle. i used to rub my knee on it and shut the fuel off while i was riding.
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Old 01-27-2010, 12:56 AM
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Default Re: Choke

tightened it, still same thing is happening, im thinking its a airflow thing thats doing it cause i just came back from a ride with my legs far away from the motor and it still came on. LMAO @classic old school ghetto-tech. rubber band time it is thanks bairdco i dunno why that diddent come to mind lol
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