07-22-2011, 09:57 AM | #1 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
Taotao 50cc scoot this time. needs more than a thumb
Well I have another 50cc to fix. This one came with a leaking carb and no spark.
The red/black wire from the stator to the CDI had been pinched in the frame. Repaired that and then stick no spark. I suspected the CDI, but din't have a spare so I tried another coil. Got spark. Yesterday no carb, CDI, and coil arrive. Put it all together take it for a ride. Rode about 1/4 mile and it died. Restarted by difficult. Then no spark at all again. Tried swapping coils, cdi, still nothing. Tested stator 81VAC at CDI. Nothing at coil. Tested trigger/pickup coil. 0.1VAC This is my suspect. Reading says I need at least 0.5VAC to trigger the CDI. So now it looks like I need to replace the trigger coil and stator. Found some good help over here. http://chinesescoots.forumwise.com/c...hread9545.html |
|
07-22-2011, 12:15 PM | #2 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
|
I'm no expert here but as I recall symptoms like this can be caused by an excessive gap from the rotor to the trigger coil. Maybe that or some debris is causing the problem?
__________________
Happy to serve. |
|
07-22-2011, 04:35 PM | #3 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
|
That's what I'm thinking. That, or excessive corrosion inside the flywheel.
__________________
Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
|
07-23-2011, 09:59 AM | #4 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
I am not sure what the problem wa, but yesterday I checked the connectiosn again and it is started up and worked flawlessly.
If it comes back I will open up the flywheel cover and see what is going on. |
|
07-23-2011, 10:51 AM | #5 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
It quit again.
|
|
07-23-2011, 12:33 PM | #6 |
Join Date: Mar 2009
Location: Sardis, BC, Canada
Posts: 25,977
|
Yeah, it's rare for those automatic repairs to last.
When I found corrosion inside of a flywheel, I sanded it off and then rubbed in some WD-40 to help protect it.
__________________
Weldangrind "I figure I'm well-prepared for coping with a bike that comes from the factory with unresolved issues and that rewards the self-reliant owner." - Buccaneer |
|
07-23-2011, 02:24 PM | #7 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
I think that is what I will try next. I believe I have the correct flywheel puller.
This may be a good excuse to buy one of those electric impacts. I told him that I didn't think it would last. New stator assembly is $25. |
|
07-24-2011, 12:10 AM | #8 | |
Join Date: Jul 2008
Location: Idaho
Posts: 25,054
|
Quote:
P.S. I could use an inexpensive, electric impact driver. Which model are you thinking about purchasing, and how much does it cost? Spud
__________________
Spud "Never argue with an idiot. He will drag you down to his level, and beat you with experience." Mark Twain 2015 Zongshen ZS250GY-3 (RX3) 2006 Zongshen ZS200GY-2 (Sierra 200) 2005 Honda XR650L 2004 Honda CRF250X 1998 Kawasaki KDX220 Mods made to my Zongshen ZS200GY-2: http://www.chinariders.net/showthread.php?t=6894 |
|
|
07-24-2011, 01:58 PM | #9 |
Join Date: Jun 2009
Location: orbital platform
Posts: 741
|
Scrappydog sells just the pick-up ($12), or stator. I bought a stator there, it came fast, and appeared to be the same as original. Watch the pictures carefully!
|
|
07-24-2011, 11:46 PM | #10 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
I only need the pickup. The stator is working fine.
Spud, the scooter is pretty new. I think he bought it over the winter. About 700kms. Haven't decided on an impact yet. Harbor freight has some. It would be easier than dragging my little compressor out and getting it setup to remove one nut. |
|
07-26-2011, 02:03 PM | #11 |
Join Date: Jun 2009
Location: orbital platform
Posts: 741
|
I am told those 12V roadside emergency type impact guns will do the trick, probably not much good for anything else, but you know?
|
|
07-26-2011, 02:04 PM | #12 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
I got it back today. Only 0.2VAC from the trigger coil. Fortunately another coworker had ordered one and didn't need it. I will pick that up today and hopefully have this scoot going tomorrow.
Maybe I will take pics. Have a kodak that needs some testing. |
|
07-27-2011, 12:49 PM | #13 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
New scrappydog trigger coil and still no spark. I only get 0.2vac on the trigger coil.
Flywheel is nice and clean. |
|
07-27-2011, 01:00 PM | #14 |
Join Date: Mar 2009
Location: Southeastern Washington desert
Posts: 14,761
|
Damaged or broken wire? Perhaps something is getting pinched by the case? Low battery voltage? Corroded connection somewhere?
I don't really know, just thinking...
__________________
Happy to serve. |
|
07-27-2011, 01:12 PM | #15 |
Join Date: May 2007
Location: Altamont, Kansas
Posts: 15,103
|
Everything is clean. The battery spins it easily. I am wondering if it is a stator problem.
I don't see any pinched wires. Can't locate my flywheel puller either. |
|
|
|
Thread Tools | Search this Thread |
Display Modes | |
|
|