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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #3731  
Old 05-25-2012, 09:15 PM
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Ibedayank Ibedayank is offline
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Default Re: what did you do to your motor bike today?

Kannonball

you may want to read this...

http://en.wikipedia.org/wiki/Expansion_chamber
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  #3732  
Old 05-25-2012, 10:34 PM
xenodius xenodius is offline
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Default Re: what did you do to your motor bike today?

Today I ground the clutch case where the chain was hitting, and adjusted the clutch; significantly less noise and slightly less friction! (.8 mph increase by GPS, though adjusted disc-brakes might be partially responsible.)

To do:
Get some cardboard inside the clutch case to deaden the noise.
Remove my tensioner and put it on the pedal side.
Put rubbers between the fins on the motor.


I do have a question for you guys! Where do you buy plain-old (somewhat heat resistant) rubber if you don't have something lying around??

Last edited by xenodius; 05-25-2012 at 11:04 PM.
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  #3733  
Old 05-25-2012, 10:46 PM
KANNONBALL13 KANNONBALL13 is offline
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Default Re: what did you do to your motor bike today?

What area should i focus on? I have read a few articles.
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  #3734  
Old 05-25-2012, 11:59 PM
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Default Re: what did you do to your motor bike today?

They seal well though, and are cheap. You could add a tank vent though.

Quote:
Originally Posted by Ibedayank View Post
I think you will find these do not have a vent as the crankcase is already vented. So there is no need for them to be vented as it would bypass the smog junk on the motor.
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  #3735  
Old 05-26-2012, 01:09 AM
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Default Re: what did you do to your motor bike today?

New tank works great! Bike looks fantastic! I know this because I took her out for a ride down our street and one fellow biker made that observation. The two others just slowed down and staaaaaaaaaaaaaaaaaaaaared at her.
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  #3736  
Old 05-26-2012, 01:17 AM
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Default Re: what did you do to your motor bike today?

That is awsome Allin!! That whole thing is a work of art.
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  #3737  
Old 05-26-2012, 07:07 PM
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Allen_Wrench Allen_Wrench is offline
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Default Re: what did you do to your motor bike today?

Quote:
Originally Posted by Goat Herder View Post
That is awsome Allin!! That whole thing is a work of art.
Aw shucks. Thanks much, Goat. It's so flattering that the average man-on-the-street as well as people on the forum think I've built a nice bike. Makes all the hard work worth it.
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  #3738  
Old 05-26-2012, 08:31 PM
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robbomberbomyea robbomberbomyea is offline
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Default Re: what did you do to your motor bike today?

put on spedo,added cnc intake and lights also upgraded fuel lines,drifter getting close to 30mph then four strokes on me,ill try a jet change if new spark plug wire dont do the trick,peace
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  #3739  
Old 05-27-2012, 08:57 AM
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Default Re: what did you do to your motor bike today?

I upgraded the fuel line and attached a strobe light to the front fender for safety sake.
I am still waiting for the exhaust to get back from the re-coat and polish, should get it this Friday.
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  #3740  
Old 05-27-2012, 04:30 PM
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Toadmund Toadmund is offline
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Default Re: what did you do to your motor bike today?

Speaking of exhaust:
Started hand filing (port matching) my exhaust pipe out with a round file, then busted a move to the basement to hurry it up with my 'dremel type tool'

It was exhausting work!
(The exhaust port was ported before I installed engine, just didn't do the muffler until now)

Let me ask you experienced guys, would doing this make it feel like I added 10-20 cc's to the motor?
Seems like since I did this the bike wants to leave without me!
OR, is this me feeling the start of my rings starting to seat or both?
(Just started my second tank of 16:1 non-synthetic)

The difference is amazing and it even seems to 4 stroke less at WOT.

PS, also cracked my Dudley combination lock that hasn't been opened since high school 24 years ago! Thanks interwebs! I'll use that with my big chain and big U bolt lock for my motorized bicycle security needs.

And don't forget my question, thanks.

One of the pictures (black cat) is the exhaust after [s]hand[/s] finger sanding with emery cloth. Sanded to good enough adequate perfection.
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