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Motorized Bicycle General Discussion All topics regarding bicycles with engines.

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  #7261  
Old 06-21-2014, 08:23 PM
greaser_monkey_87 greaser_monkey_87 is offline
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Join Date: Mar 2014
Location: USA
Posts: 397
Default Re: what did you do to your motorized bicycle today?

Today I installed handlebar clamps for mirrors with 10mm stems. These are motorcycle quality clamps, not the cheesy sheetmetal clamps that come with bicycle mirrors. I have a left mirror my brother gave me, but I'm buying a new set with my next paycheck. $25 for a set of black mirrors at my local shop, unless I find some cheaper on ebay or amazon.
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  #7262  
Old 06-21-2014, 09:03 PM
Ooontzler Ooontzler is offline
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Join Date: Feb 2014
Location: Bay Area, CA
Posts: 57
Default Re: what did you do to your motorized bicycle today?

Today I installed a new transfer chain between my transmission out shaft and jackshaft. Packed it with some good grease, so hopefully I'll stop burning up chains!
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  #7263  
Old 06-21-2014, 09:06 PM
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Powertool Powertool is offline
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Join Date: Jul 2012
Location: Bradford,TN.
Posts: 233
Default Re: what did you do to your motorized bicycle today?

Let's see some pictures , of this bike , you've been working on , spending all the cash on...
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  #7264  
Old 06-21-2014, 11:43 PM
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mapbike mapbike is offline
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Join Date: Mar 2010
Location: Central Texas
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Default Re: what did you do to your motorized bicycle today?

Today I pulled the top end off my Dax that is on the old 63 Western Flyer bike, this is/or was my fastest bike, I took it for an easy cruise a few days ago and noticed a serious power loss developing in the lower rpms, engine never raced as if it had an air leak or never idled funny or any sure signs of trouble, it still revved up good once the rpms came up but it became a complete DOG on the bottom end.

I figured the afternoon I needed to just pull the jug and see if I could figure out what was going on, I was hoping for a gasket issue or something simple but I was met with a very serious problem, I made a crude video of what I found, you'll have to forgive my yanking the crank around to much and the fact that I'm not much for talking about things on camera, so try to ignore the Red Neck camera work and my talking best you can.

This is my first major Dax engine failure, Not sure what caused it, but I know the lower wasn't exactly right from the get go since the crank rotation was tight and had areas that would ease up and then get tight again as it was rotated, If I had not used this lower for this high rpm build it may have lasted good for a very long time and then again maybe not, but it's for sure that this may become a parts donor now.

https://www.youtube.com/watch?v=-jTA...ature=youtu.be

Map
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I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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  #7265  
Old 06-22-2014, 02:45 AM
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DRBS DRBS is offline
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Join Date: Jun 2014
Location: Westland MI U.S.A
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Default Re: what did you do to your motorized bicycle today?

well lets see put new chain, adjusted carb, started up my second one rode around for an 1/2 hr I also added more pics on www.facebook.com/motorizedbike
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  #7266  
Old 06-22-2014, 07:41 AM
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GearNut GearNut is offline
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Join Date: Aug 2009
Location: San Diego, Kaliforgnia
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Default Re: what did you do to your motorized bicycle today?

mapbike, utube says "this video is private" and I am locked out.
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The_Aleman:
"It's a chinagirl. It's a sometimes fun little engine that often will break your heart. It's disposable.

Does not come with a fortune cookie."
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  #7267  
Old 06-22-2014, 08:42 AM
Rump Rocket Rump Rocket is offline
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Join Date: May 2014
Location: Michigan
Posts: 26
Default Re: what did you do to your motorized bicycle today?

Ordered a new Mechanical Speedometer the last China made junk I bought lasted 14 miles before crapping out.
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  #7268  
Old 06-22-2014, 09:42 AM
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Cruise Cruise is offline
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Join Date: Oct 2013
Location: Australia
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by GearNut View Post
mapbike, utube says "this video is private" and I am locked out.
Same here, sorry.
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  #7269  
Old 06-22-2014, 11:54 AM
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mapbike mapbike is offline
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Join Date: Mar 2010
Location: Central Texas
Posts: 5,379
Default Re: what did you do to your motorized bicycle today?

Try the link now fellas, sorry about that...

Map
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I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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  #7270  
Old 06-22-2014, 11:57 AM
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mapbike mapbike is offline
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Join Date: Mar 2010
Location: Central Texas
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Default Re: what did you do to your motorized bicycle today?

Quote:
Originally Posted by Rump Rocket View Post
Ordered a new Mechanical Speedometer the last China made junk I bought lasted 14 miles before crapping out.
So far I haven't found any mechanical speedometers that will last on my bikes, I've destroyed several and some were vintage and really nice speedometers and that just made me sick to know I ruind them....

They just aren't design d for the vibes and the higher speeds and fall apart in a very short amount of time.

Map
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I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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