[Kartbuilding] your mail

[Stephen Burke]

Hi Benjamin,

Thanks for your email and good comments.
You're not the first person to ask about wanting to change the speed of an 
engine by modifying the throttle. I suggest you read some of the previous 
emails I wrote on this. See:
http://lists.kartbuilding.net/2006-December/000308.html  and 
http://lists.kartbuilding.net/2006-December/000304.html

Specifically, you are going to have to get a brake cable off an old 
bicycle and adapt it to fit your engine, so when you operate the pedal it 
will pull the cable and in turn this will operate the lever on the engine. 
See: http://www.kartbuilding.net/PlAnS/Engine_Throttle_Cable_Operation.jpg

You need to be able to move the metal lever on the lawnmower engine. It 
should be possible to do this, you may have to bend a piece of metal out 
of the way and then the lever should move ok. You may also have to connect 
an extra spring to make sure the lever returns back to the normal position 
when your foot is taken off the throttle.

I hope this helps.
Best of luck,
-steve



On Sun, 16 May 2010, Benjamin Kähärä wrote:

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> I looked at your go cart and im very happy about it. but i looked at one finnish lawnmower and it didn have a throttle on it othervise than down on  the actual engine. and the clutch lever, i dont understand how it works. like it works from [stop]-to-[start] or is there anything in the middel so the engine is running but cart not moving yet until you put it all the way to the start position and it will move? and how is the throttle working, there is no cable on the lawnmower but a thing you move back and forth <-- the throttle or what ?
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> Sorry for my bad english!. Please response soon.
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> Greetings from Benjamin from finland.
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> BTW. using a vertical engine so thank you for telling about the V-belt.
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