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Post by ewasleske on Jul 27, 2013 22:00:10 GMT -5
I finally have my project scooter up and running. One of the last things to fix is the headlight. All other functions on the switch cluster work. The headlight and running light (small bulb) don't work. Any ideas on how to troubleshoot this would be much appreciated. Scoot is a '04 Vento Triton R4.
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Post by 90GTVert on Jul 28, 2013 7:03:36 GMT -5
Does your tail light work (brake should be battery powered, but the tail should be in the same circuit as the running light/headlight)? Start by checking connections from the headlight assembly to the switch. See if power gets to the lights (engine must be running). You should have a wire supplying power to the switch, I wanna say yellow/red. That same wire will cross over to the hi/lo beam switch. Make sure it's got juice. If so, see if power comes out to go to the lights. Headlight power will be two shades of solid blue wires. Tail/running is brown IIRC. Wiring diagram linked below so you can check... s259.photobucket.com/user/turbostang331/media/49ccscoot/Phantomr4ielectricitydiagram.jpg.html
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Post by ewasleske on Jul 30, 2013 21:31:05 GMT -5
Tailight works. Can't check with engine running.. new problem, it won't start. I noticed a fuse inbetween the magneto and rectifier. Could that be the culprit? Any idea where it's located? Thanks Brent.
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Post by 90GTVert on Jul 31, 2013 5:24:11 GMT -5
Mine never had a fuse there. My Keeway did though. Where my Tritons had a single fuse holder near the battery, the Keeway had a double fuse holder with one inline from the stator. If you have that and it's blown, it could cause problems with charging and possibly lighting.
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Post by ewasleske on Aug 5, 2013 17:36:40 GMT -5
Turns out I had spark all along. I spent a good amount of time with the carb. Cleaned and recleaned and dialing it in. The scooter starts great. Had it out for a test run and it died coming down hill at 40+ mph. let off the gas and it died. I'm wondering if it flooded out. The enricher is on the same feed as the headlight. Could it be stuck open? Oh yeah taillight doesn't work either, brakelight does.
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Post by 90GTVert on Aug 5, 2013 19:55:12 GMT -5
You should check the charging/lighting wires out of the stator. Unhook them and check AC volts on each when the scoot is running. It sounds like all of your DC (battery) powered stuff is doing fine, just the AC (stator) stuff is not working.
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Post by ewasleske on Aug 6, 2013 18:25:34 GMT -5
Checked AC voltage from the stator. 14 volts from red/green and white wire, higher with revs. Whats next? The rectifier?
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Post by 90GTVert on Aug 6, 2013 21:16:15 GMT -5
Yeah, see what kinda voltage you've got downstream at the batt while revving and at the lights.
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Post by ewasleske on Aug 7, 2013 22:09:41 GMT -5
No measureable AC voltage at switch feed with engine running. The battery is static 12.4 volts with engine running..no charging.
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Post by 90GTVert on Aug 8, 2013 7:38:46 GMT -5
Something's unhooked or the regulator/rectifier has totally failed I'm guessing since you do have power coming out of the stator.
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Post by ewasleske on Aug 8, 2013 19:38:52 GMT -5
I pulled the switch apart and rechecked voltage there and at the rectifier. .4V at switch green/red wire. The rectifier measures similar AC voltage and 12 or more DC volts on two or three wires. Must not have had a good ground last time I tested. Seems the rectifier is working then? I'm wondering if the rec was swapped with a chinese replacement and theres wiring differences like you have posted in the tech section.. Thanks for your patience and help with this..49cc scoot is a godsend for people like me.
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Post by 90GTVert on Aug 8, 2013 21:26:35 GMT -5
You could make up the little jumpers I show in that rectifier thread and try the other connections.
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Post by ewasleske on Aug 14, 2013 21:17:12 GMT -5
UPDATE: I made the jumpers and tested the rectifier..success! The wiring switch fixed the problem, well almost. DC voltage at the battery now shows charging. AC voltage at the switch measures 12V. Now for the tricky part: the voltage at the headlight connector. Yellow wire and light blue wire show 6.2-7 Volts AC. The dark blue and black wires nothing. Is there a bad connection? I'm assuming that the headlight needs 12 volts or close to it. Nothing from the headlight at this point. Any suggestions?
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Post by 90GTVert on Aug 15, 2013 7:52:11 GMT -5
Black is ground. Yellow is the running light. One blue wire is the low beam, the other is high. I forget which is which ATM.
Switch the hi/lo beam switch and see if you then get power to the other blue wire. Check the black wire for continuity to ground. If those things check out, it sounds like maybe you need a new headlight bulb.
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Post by ewasleske on Aug 15, 2013 22:44:27 GMT -5
Alright, now I feel like a fool. The headlight and all other lights running off of the stator are burned out. The most obvious thing came last. I think we found out along the way what caused the massive burnout. I saved myself blowing up more bulbs and maybe a battery too. I've enjoyed learning along the way. There's nothing like learning from doing. Two last questions: are the dash lights replaceable? Would the burnout also affect the gas gauge? Brent, thanks for all your help...time to put this thread to bed.
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