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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.

Install problems


Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle Trouble Shooting forum. I have the Motor on the new frame and It's only on by 2 bolts and they are reinforced ...
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Old 06-30-2008, 02:53 PM
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Default Install problems

I have the Motor on the new frame and It's only on by 2 bolts and they are reinforced by cold weld stuff and I have the 3rd bolt with cold weld as well. I don't know if this will be enough to hold the motor safety but I will keep a eye on it.

Anyway, i found out the throttle cable has to much slack and I cannot move the throttle at all. I can't figure out how to remove the slack. I tried ajusting it where it goes into the carb and into the throttle grip itself..

Suggestions anyone ?
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Old 06-30-2008, 04:00 PM
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Default Re: Install problems

What kind of engine?

Cold weld stuff is not trustable for structural members.
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Old 06-30-2008, 04:27 PM
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Default Re: Install problems

I still have a Titanium Nitride Coated Drill bit and a punch as a back up in case the cold weld doesn't hold out and I need to get the snapped bolt out.

The motor is a CH80 Motor.

Here is pic of what the motor like mine looks like.


Last edited by Mopedamauter79 : 06-30-2008 at 04:31 PM.
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Old 06-30-2008, 07:15 PM
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Default Re: Install problems

On your front or rear mount? Is this what you did?



Some dealers say it will work fine. But I don't like. I would rather drill a hole in the frame then use epoxy. You could also use a muffler clamp to avoid drilling a hole in the frame.

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Old 06-30-2008, 07:32 PM
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Default Re: Install problems

Are you saying the engine is mounted with three out of four of the studs/nuts? That won't work for long.
Get an EZ out and remove the broken stud, you will be happy you did.

How do you know the cable has too much slack if you can't turn it?

I'm guessing it's a new install? The second kit I bought, I had to do considerable sanding of the throttle drum (plasitc part that goes over the handlebar), and in addition to that, when I tightened it all down it still bound up. I took it back apart and cleaned of some flash from the plastic and paid close attention when I screwed it back together, and it worked fine.
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Old 06-30-2008, 09:17 PM
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Default Re: Install problems

Quote:
Originally Posted by Bikeguy Joe View Post
Are you saying the engine is mounted with three out of four of the studs/nuts? That won't work for long.
Get an EZ out and remove the broken stud, you will be happy you did.

How do you know the cable has too much slack if you can't turn it?

I'm guessing it's a new install? The second kit I bought, I had to do considerable sanding of the throttle drum (plasitc part that goes over the handlebar), and in addition to that, when I tightened it all down it still bound up. I took it back apart and cleaned of some flash from the plastic and paid close attention when I screwed it back together, and it worked fine.
Because the cable comes out of the housing on either end of the cable. Either on the end of the carb or the end going into the throttle.

We already tried to drill into the screw and the drill barely made a dent in it. I don't know if the bit was not strong enough or what was the case.

I can take a pic of the cable slack and how we cold welded the bike.

I do have a Center punch and that drill bit I mentioned before along with a screw extractor drill bit.
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Old 06-30-2008, 10:40 PM
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Default Re: Install problems

Get a brand new drill. That way you know it will be sharp. Those studs are real soft and drill really easy. And do like Norm said if you can find a bit that turns left to drill you may not even need the ease out. But they may be hard to find...........................
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Old 06-30-2008, 11:30 PM
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Default Re: Install problems

if you still can't get that bolt out, take the motor to a machine shop, auto shop, motorcycle shop, lawnmower shop, heck even Ace Hardware might be able to do it. Probably would only cost a few bucks. Even if they can't get it out, they ought to be able to drill out the whole thing and put in a helicoil for just a little bit more cash.

I really wouldn't trust that cold weld stuff for anything structural like this.
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Old 07-01-2008, 12:10 AM
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Default Re: Install problems

If I where to buy a new drill that would do the job then I might as well just throw this motor out and get a new one...I don't have a car or a truck so I can't just bring it to a auto shop or anything very easy.
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Old 07-01-2008, 12:32 AM
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Default Re: Install problems

I guess you could try attaching a smaller diameter bolt to the broken stud with some jbweld or whatever and see if you can unscrew it like that. Just be careful to only get it on the stud, not the motor.

all else fails, keep tryin with that drill I guess.
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