Motorized Bicycle: Engine Kit Forum  

Sponsors



Go Back   Motorized Bicycle: Engine Kit Forum > Bicycle Motor > Motorized Bicycle Trouble Shooting

Motorized Bicycle Trouble Shooting Use this area to post problems that may arise that you could use some help in figuring out what is wrong with their bicycle motor and what needs to be done to achieve top performance.

Reply
 
Thread Tools Display Modes
  #1  
Old 02-15-2009, 04:57 PM
philymitch's Avatar
philymitch philymitch is offline
Motorized Bicycle Senior Member
 
Join Date: Feb 2009
Location: Fresno CA USA
Posts: 95
Default Not even a month old

I pulled the cover off today and this is what I found. the big gear is striped what can cause this and do you think it is still under warranty. Its the spot between the red lines.



[IMG]<a href="http://s85.photobucket.com/albums/k72/phily2555/?action=view&current=motorgearbroke.jpg" target="_blank"><img src="http://i85.photobucket.com/albums/k72/phily2555/motorgearbroke.jpg" border="0" alt="striped gear"></a>[/IMG]
Reply With Quote
Sponsored Links
  #2  
Old 02-15-2009, 05:13 PM
philymitch's Avatar
philymitch philymitch is offline
Motorized Bicycle Senior Member
 
Join Date: Feb 2009
Location: Fresno CA USA
Posts: 95
Default Re: Not even a month old

sorry here is the pic
striped gear picture by phily2555 - Photobucket
Reply With Quote
  #3  
Old 02-15-2009, 05:25 PM
2door's Avatar
2door 2door is offline
Super Moderator
 
Join Date: Sep 2008
Location: Littleton, Colorado
Posts: 7,590
Default Re: Not even a month old

Phily,
That is a strange one for sure.
What does the crankshaft gear, the small one in front, look like? Does it show any signs of abnormal wear? Were the gears ever lubricated? It doesn't require much, just a dab so you don't get grease in the clutch. Unless the engine block halves are loose and coming apart there is really no way for those gears to be misaligned or too far apart unles there is a problem with the engine casting or something is cracked and allowing separation. This is the first time I've seen this problem but hopefully someone with years of China gal experience will have an answer.
Tom
__________________
Age and Treachery Will Always Triumph
Over Youth and Skill & "Charlie Don't Ride"
Reply With Quote
  #4  
Old 02-15-2009, 05:39 PM
philymitch's Avatar
philymitch philymitch is offline
Motorized Bicycle Senior Member
 
Join Date: Feb 2009
Location: Fresno CA USA
Posts: 95
Default Re: Not even a month old

The small gear looks untouched. I also clean and regrease those gears every 5 hours of riding. Also The motor runs just fine. I took the cover off because it sounded a little dry on my ride to the store. So this had to happen within the last 5 hours of riding.
Reply With Quote
  #5  
Old 02-15-2009, 05:43 PM
Pablo's Avatar
Pablo Pablo is offline
Master Bike Builder & Forum Sponsor
 
Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,291
Default Re: Not even a month old

Crappy metallurgy. Probably not a lube issue.
Reply With Quote
  #6  
Old 02-15-2009, 06:08 PM
philymitch's Avatar
philymitch philymitch is offline
Motorized Bicycle Senior Member
 
Join Date: Feb 2009
Location: Fresno CA USA
Posts: 95
Default Re: Not even a month old

I got the motor form zone 8 trading on jan 18 2009
Reply With Quote
  #7  
Old 02-15-2009, 06:25 PM
Dave31's Avatar
Dave31 Dave31 is offline
Super Moderator
 
Join Date: Mar 2008
Location: Tucson, AZ
Posts: 9,393
Default Re: Not even a month old

Don't the say 6 month warranty? I would send it back.

I have never seen one fail in that way.
Reply With Quote
  #8  
Old 02-16-2009, 05:21 PM
Norman's Avatar
Norman Norman is offline
LORD VADER Moderator
 
Join Date: Jan 2008
Location: pampa texas
Posts: 2,685
Default Re: Not even a month old

I'm wondering if your clutch is a bear to operate with the clutch cable routed under the front engine mount? As for the gear stripping off its teeth is your chain real tight? You might have lost or trashed the bearing in the shaft that the clutch and rear drive sprocket are mounted on there is a bearing under the clutch and the rear drive sprocket.
Or your drive gear on the clutch was faulty from the get go.
I also noticed what looks like an exhaust leak with the oily stuff at the base of your cylinder and you might even have an intake leak quite a bit of poo around the intake.
__________________
norms-iron-works.tripod.com
Reply With Quote
  #9  
Old 02-16-2009, 06:15 PM
Bikeguy Joe's Avatar
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
 
Join Date: Jan 2008
Location: Ashtabula county, Ohio
Posts: 10,864
Default Re: Not even a month old

Send it back under warranty.
__________________
If it ain't broke, and you mess with it long enough, it will be.
Reply With Quote
  #10  
Old 02-16-2009, 06:17 PM
Bikeguy Joe's Avatar
Bikeguy Joe Bikeguy Joe is offline
Godfather of Motorized Bicycles
 
Join Date: Jan 2008
Location: Ashtabula county, Ohio
Posts: 10,864
Default Re: Not even a month old

That is one blue exhaust pipe fo'sho'!
__________________
If it ain't broke, and you mess with it long enough, it will be.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 10:44 PM.


Sponsors

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2012, vBulletin Solutions, Inc.
Motorized Bicycle Engine Kit Forum