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Post by helix803 on Sept 4, 2015 17:22:32 GMT -6
Ha, this POS TaoTao has a busted kick-starter.
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Post by helix803 on Sept 4, 2015 15:08:24 GMT -6
Spark plug is new.
Trimmed and reattached the plug wire, but now the battery is dead. It won't hold a charge. I keep it on a charger but it just won't hold.
Can't do anything with a bad battery.
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Post by helix803 on Sept 4, 2015 14:30:29 GMT -6
I got around .25 V AC on the pickup wire.
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Post by helix803 on Sept 4, 2015 14:16:20 GMT -6
Excellent video.
I tested the coil resistance like the video said. Where he had 2.8 ohm resistance, mine showed .2 ohm resistance.
I tested the starting AC voltage coming out of the stator and got a reading of 45V AC where he had 75V AC. Is my result out of line?
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Post by helix803 on Sept 3, 2015 18:36:03 GMT -6
I am working on my nephew's friend's TaoTao ATM50. The scooter was running fine, but today it just quit and would not restart. The intake and exhaust valve adjusters were extremely tight. I adjusted both to .004. The engine would still not run. I tested for spark by grounding the body of the plug to the cam cover and saw no sparking while starting. Which part could have failed?
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Post by helix803 on Mar 8, 2015 12:03:15 GMT -6
FIXED!
Went back to square one. Took apart the carburetor and found a clogged jet (again). I reinstalled the carb and adjusted the mixture and idle until the engine did not die at half to full throttle.
Thanks Scooter Doc!
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Post by helix803 on Mar 8, 2015 10:28:46 GMT -6
- No pin holes in the diaphragm
- There is one vacuum line from the intake manifold to the fuel pump. It appears fine.
- The fat breather hose on the lower side of the cam cover goes to a filter/valve dohicky. It is OK, after the box it vents to atmosphere
- The upper breather hose goes to the canister and connects to the intake tube. That hose appears fine
- Factory airbox with a new filter, but the owner did not supply the airbox cover
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Post by helix803 on Mar 7, 2015 22:29:19 GMT -6
OK, I'll check the diaphragm and look for vacuum leaks tomorrow. Yup, definitely can see light thru the jets.
Thanks for the help so far.
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Post by helix803 on Mar 7, 2015 17:03:43 GMT -6
I took the carb completely apart and cleaned it thoroughly. The jets are clear. The air filter is new.
If I apply the throttle slowly, it bogs less. If I apply it quickly if bogs severely.
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Post by helix803 on Mar 7, 2015 15:51:52 GMT -6
I am working on my friend's scooter. I gave it a tuneup and it was having some electrical issues. The electrics are now sorted, but now the carb is pissing me off. The carb did have the EPA plug which I removed and can now adjust. No matter where I but the fuel mixture screw, the engine bogs at half throttle. It idles fine, but can't be ridden. I am about to give up. Please help.
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Post by helix803 on Jul 5, 2014 9:34:18 GMT -6
I am finding parts numbers but not dimensions. When I can find one for sale is it $50 or more.
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Post by helix803 on Jul 3, 2014 10:33:59 GMT -6
I am working on a 1988 Yamaha Riva CV50. Finding parts is next to impossible. Yamaha says the CV50 was made in 1988 yet the DOT sticker clearly states it is a 1988 model. It is a 50cc 2-stroke. The belt Monster sold me is the wrong size. I no longer have the original to measure so now I must figure what size it takes. Any of you have an idea? It is kind of a long case motor.
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Post by helix803 on Jun 25, 2014 14:00:26 GMT -6
I am working on a Honda Elite SA50. It is a 2-Stroke. I can't get the idle or mixture correct. Steps I have taken: - Cleaned and dried air filter
- adjusted mixture screw
- adjusted idle screw
No matter where I set the screws I can't get a high enough stable idle. So, I decided to pull the carb to give it a good cleaning. I disconnected the hoses but when I got to the fuel supply hose gas poured out and kept coming. Is that supposed to happen with a vacuum petcock? Do you suppose it has failed? Could that be my problem? |
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Post by helix803 on Apr 30, 2014 15:48:01 GMT -6
Hallelujah! Installed new stator and have a whopping 15V
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Post by helix803 on Apr 30, 2014 14:50:50 GMT -6
I think i mighta fried the new regulator. That area smelled funny and the harness is warm. I did not find any short to ground. At idle it still puts out 6v and at 5,000 rpm 8v. I am ready to throw in the towel.
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