Motorized Bicycle Resurrection

[yoothgeye]

OK, I just put in the NGK plug (didn't gap it) and took it for a test spin, runs again, had fouled the plug.

Right before the run though I went to tighten up that loose carb and it looks as if the crimp sleeve on the carb is cracked... a lot. Not sure what to do about that until I take it off. The motor moved a little while tightening the plug and the rear motor mount was loose, while tightening those I noticed that the "bracket" (just a cheap piece of sheet metal) is ripped on one side, so I'm going to have to fab up some new mounts.

The vibes on these motors wreak HAVOC on everything!

 

[slowriderz]

Let me know if you need some parts or parts made. I will surely see what I can do for you. If you send me some pictures of your broken parts I will see what Ideas I can help with.

 

[yoothgeye]

Let me know if you need some parts or parts made. I will surely see what I can do for you. If you send me some pictures of your broken parts I will see what Ideas I can help with.

Got any spare carbs? I don't know how bad it is yet.

I guess all the motor mounts that come in the kits are the same. I'm going to do what I originally said and weld the mounts to the frame.

I have an aftermarket cone air filter for a pocket bike. It fits the carb, but not on the bike... too close to the seat tube. I'm going to have to make something there too I think. :x

 

[slowriderz]

I will look through my stash tonight and see what I have. I do have a gang of mounting blocks if you need them as well as heavy duty studs to replace the cheap chinese studs that come stock. I am sure I have a few carbs and maybe some air filters. Throw a close up pic together of the carb and clamp area and I will see what I have to help.

 

[yoothgeye]

I will look through my stash tonight and see what I have. I do have a gang of mounting blocks if you need them as well as heavy duty studs to replace the cheap chinese studs that come stock. I am sure I have a few carbs and maybe some air filters. Throw a close up pic together of the carb and clamp area and I will see what I have to help.

Will do. I don't use the studs, I replaced them with bolts, but studs may do better. I am just using the thin steel seat tube mounting bracket.

 

[slowriderz]

In just my experience the bolts may tend to have more odds of stripping out your motor casting. The studs can be screwed in to bottom out and then be lock nutted on. Thats just my observation from bad experience with bolts. I also use blue Loc-tite on the studs.

 

[yoothgeye]

In just my experience the bolts may tend to have more odds of stripping out your motor casting. The studs can be screwed in to bottom out and then be lock nutted on. Thats just my observation from bad experience with bolts. I also use blue Loc-tite on the studs.

Good point. I need studs. haha

 

[yoothgeye]

Oh, this is bad...

Wanna see close up?

The vibes are killing me, glad I'm not using an aluminum frame bike.

 

[slowriderz]

OH MAN!!! :shock: :shock: :shock: I would surely say that those parts are goners!! I would save the carb for spare internal parts and start fresh from there. I am assuming that the last picture is the muffler clamp? All parts are very easy to find on Fleabay for cheap. Feel free to shoot me a PM if you would like some pictures of parts that I have also.

 

[gcrank1]

From back in my motorcycle days (there were still a lot of 'shakers' running around then) when a bracket or mount would break the typical logic was to beef up the replacement. Next time around that part might not be the one to do, but something else 'upstream' as the vibes were passed on. FWIW, think about where you are transferring those vibes to. In surfing around on these I stumbled onto a chap who used sections of auto radiator hose between frame tubes and engine (sandwiched under the widened clamps) to dampen vibes and said it was working quite well. Norton rubber isolated their engines way back and it too was an improvement, though it was funny watching the engine jump around at idle with the rest of the bike staying pretty still (but they did skate themselves across a parking lot on the kickstand).

 

[yoothgeye]

OK, so I ordered a carburetor Thursday from eBay for $11.51 and free shipping, they said it would be here by Wednesday, but it showed up this morning! :shock: Now that is fast shipping!

I couldn't believe I could get a carb for under $12, I should've bought 2.

My daughter turns 3 tomorrow so we had a party for her today. While waiting for everyone to arrive I had a bunch of bikes out and I pulled out my little 49cc pocket bike. It hadn't been started in about a year, but a little air in the tires, fuel in the tank and choke and it started right up. That little thing was FLYING... until I crashed... bad. Foot went under footpeg and flipped me over, I have road rash on my knuckles, wrist, elbows, knees, shoulder, and back. One of my fingers is sore and seriously swollen and I tore up my left shoulder real bad, the same one I did when I wrecked my mountain bike earlier in the year. It's bad, worse than it was my wife thinks surgery (she's a physical therapist).

Motors are dangerous!

 

[josh_from_ga]

I'm sorry to hear about the accident. I hope your injuries aren't too severe.

 

[yoothgeye]

I'm sorry to hear about the accident. I hope your injuries aren't too severe.

I'll follow up after a doctor's visit. I may be stupid enough to keep having dumb accidents like this, but I'm not stupid enough to run to the emergency room every time one happens. Those co-pays are crazy! I just save my money and go straight to a specialist that they would have referred me to anyway.

 

[gcrank1]

Sorry about your 'unload', its just bad when your best coefficient of friction is your bod.......youd think that a pocketbike closer to the ground wouldnt be so bad, but......
I looked at an Indian site last night, the old 1904 'Humpback' was similar in power these bigger motoredbikes and only did about 20mph so the 30-35 I often hear about ain't bad for a little ChiPwr. Hope you get up and runnin' for the 'big' bike soon.