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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #4581  
Old 11-17-2012, 07:27 PM
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happycheapskate happycheapskate is offline
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Default Re: what did you do to your motor bike today?

Success! I rode mine to the park with my daughter today. We had a good time. The air-swirler I made from a computer fan, jammed into the rubber boot over the velocity stack, worked really well. The intake was a little quieter, and it pulled hard. I'll try to get a picture later.

I found one of these in the trash, and trimmed down the blades a little to fit. They break easily! It took me 2 tries to make one.
http://www.endpcnoise.com/e/images/p...t_case_fan.jpg

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Last edited by happycheapskate; 11-18-2012 at 01:07 AM.
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  #4582  
Old 11-17-2012, 09:05 PM
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lksdG2 lksdG2 is offline
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Default Re: what did you do to your motor bike today?

Put on this fatty pipe yesterday, lost a little bottom end off my home made pipe but the mid and high is buck wild, she wants to really rev out but it seems like the cdi has a rev limiter or something

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  #4583  
Old 11-17-2012, 10:03 PM
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fatdaddy fatdaddy is offline
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by lksdG2 View Post
Put on this fatty pipe yesterday, lost a little bottom end off my home made pipe but the mid and high is buck wild, she wants to really rev out but it seems like the cdi has a rev limiter or something

Did ya open up the intake before ya put the carb on. Even the gasket they give ya is too small. The flange thats welded to the intake tube can be filed out and opened up A LOT, and the gasket to match. And as long as you have the intake off, check the intake port. A lot of times it's not really as smooth as it could be, The casting is always jagged. better air/fuel flow may just solve the top rev problem.
fatdaddy.
And OH YEAH, No rev limiter on the CDI. When was the last time ya changed yer spark plug?

Last edited by fatdaddy; 11-17-2012 at 10:09 PM. Reason: OH YEAH.
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  #4584  
Old 11-17-2012, 10:40 PM
VIKTR VIKTR is offline
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Originally Posted by Wickedest1 View Post
actually vik, i found out this morning that i will not be homeless after all...things have worked out, for a while at least, and i will still have a place to warm me bones...got a flying horse on its way and am going to be stuck using the same old solid mountain bike i used on the last build, but its comfortable for me...im 5'11" and the 26 wheels are great...need to acquire a springed seat, and maybe find someone junking an old motorized bicycle with spring or shocked front end...the rigid kills me...pics to come of the new old build...
Great to hear
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  #4585  
Old 11-17-2012, 10:41 PM
VIKTR VIKTR is offline
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Default Re: what did you do to your motor bike today?

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Originally Posted by lksdG2 View Post
Put on this fatty pipe yesterday, lost a little bottom end off my home made pipe but the mid and high is buck wild, she wants to really rev out but it seems like the cdi has a rev limiter or something

Looks sweet

I'll take the old pipe off your hands if you're not going to use it haha
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  #4586  
Old 11-17-2012, 10:45 PM
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happycheapskate happycheapskate is offline
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Default Re: what did you do to your motor bike today?

https://sphotos-b.xx.fbcdn.net/hphot...60818525_n.jpg


My computer fan (stationary) inside the intake tunnel.
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  #4587  
Old 11-17-2012, 10:47 PM
VIKTR VIKTR is offline
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Default Re: what did you do to your motor bike today?

Forced air intake?
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  #4588  
Old 11-17-2012, 10:48 PM
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lksdG2 lksdG2 is offline
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by fatdaddy View Post
Did ya open up the intake before ya put the carb on. Even the gasket they give ya is too small. The flange thats welded to the intake tube can be filed out and opened up A LOT, and the gasket to match. And as long as you have the intake off, check the intake port. A lot of times it's not really as smooth as it could be, The casting is always jagged. better air/fuel flow may just solve the top rev problem.
fatdaddy.
And OH YEAH, No rev limiter on the CDI. When was the last time ya changed yer spark plug?
yea i did all that on the intake side, even a little on the exhaust flange, it wasnt too bad to start with but i dremeled it all out anyways...

edit: good thinking on the plug, its a nice plug (ngkb6hs) and it has around 300 miles on it i would guess, ill pull it and take a peek at it

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Originally Posted by VIKTR View Post
Looks sweet

I'll take the old pipe off your hands if you're not going to use it haha
thanks, yea you can have it if you want, i had to use the muffler and the flange for the head but the chamber itself and a few inches of pipe on either side are all still intact

Last edited by lksdG2; 11-17-2012 at 11:13 PM.
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  #4589  
Old 11-18-2012, 12:37 AM
VIKTR VIKTR is offline
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Default Re: what did you do to your motor bike today?

I need to get my hands on a decent welder first
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  #4590  
Old 11-18-2012, 12:47 AM
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I need to get my hands on a decent welder first
Think MUFFLER SHOP! They weld a little cheaper than the machine shops. I did that for a couple years before I got mine. But ya gotta catch them on a slow day, Otherwise they will charge you up the wazoo.
fatdaddy.
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