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Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles

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  #1  
Old 10-06-2009, 05:41 AM
loko123 loko123 is offline
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Join Date: Oct 2009
Location: australlia
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Default help me please!!:(

just bought a engine bike kit 4stroke one, its done about 3 hours.

was just riding it home today and sudenly it lost all power like the chain came off, thats what i thought it was at first, but when i looked it was still on, and the engine still running.

so my gearbox has stuffed up and i was wondering if any one knew something at all that might help me fix it or something.

it sucks cuz i havent even got my moneys worth out of it yet, rode it like 3 times..
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  #2  
Old 10-06-2009, 06:09 AM
bandito bandito is offline
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Location: colorado
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Default Re: help me please!!:(

Sounds like a clutch problem there will be some folks along to help you its early still. Any noises? What kind of gear box is it, if you dont know where did you buy it? What was the name of the kit?
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  #3  
Old 10-06-2009, 09:03 AM
loko123 loko123 is offline
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Default Re: help me please!!:(

bought it from power cycle australlia. think its just a cheap china kit. how can i put a pic in the
thread?
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  #4  
Old 10-06-2009, 09:07 AM
loko123 loko123 is offline
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Default Re: help me please!!:(

heres a pic
Attached Images
File Type: jpg P061009_11.00.JPG (237.1 KB, 78 views)
File Type: jpg P061009_11.00[01].JPG (220.0 KB, 50 views)
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  #5  
Old 10-06-2009, 09:59 AM
xlite xlite is offline
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Default Re: help me please!!:(

Those gearboxes have a reputation for failing in the first few miles. My buddy got about 20 miles on his first one and even less on the replacement. I have 4 of those kits and afraid to even install them untill a low cost reliable gearbox comes along.
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  #6  
Old 10-06-2009, 10:06 AM
loko123 loko123 is offline
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Default Re: help me please!!:(

so is it screwed ? like cant repair it even?

Last edited by Dave31; 10-06-2009 at 06:17 PM.
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  #7  
Old 10-06-2009, 10:28 AM
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HoughMade HoughMade is offline
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Location: Valparaiso, IN
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Default Re: help me please!!:(

Check the keys on the crankshaft or output shaft.
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  #8  
Old 10-06-2009, 08:37 PM
loko123 loko123 is offline
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Default Re: help me please!!:(

i just tryed taking the gear box apart and it wont split. took out all the bolts but something in side the gear box is holding it together. should i force it open ? does any one know where i could go for any instructions on the the gearbox its self ? when i bought it it said nothing about the gearbox.

and also could it be the fact that i put oil in the gearbox? like its just sliping on the oil, had it drain last night, fair bit of oil came out.
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  #9  
Old 10-06-2009, 09:11 PM
thatsdax thatsdax is offline
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Default Re: help me please!!:(

That looks like a Grubee or a JL knock off gear box. I do not know why you all keep buying these. They are notorious for being unreliable. For every 1 person that has a good one, there are 100 that have bad ones. The only help you should get is from the seller. Tell the seller you want a refund and send it back. The only good setups out there are Titan using Rack mount, IFFM, or using Friction drive. Note that all these use no Grubee or Grubee knock off parts. Also. I have heard that EZ has a good Center In frame Belt Drive Gear box. Not sure what SHS motor he is using since the S HS factory has several different style motors. But.. The S HS motor you have is a fantastic motor, but there are very few gear boxes that will fit it. Most of the gear boxes that fit your motor are the Poorly Engineered ones. Sorry.. But thems the facts !! And.. Sorry you did not enjoy the ride..
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  #10  
Old 10-06-2009, 09:12 PM
thatsdax thatsdax is offline
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Default Re: help me please!!:(

Send it back !! Demand your money back.. Start over...
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