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Post by Fox on Oct 24, 2009 11:54:44 GMT -5
Worked on this girls 150cc scoot a few days ago. She had ridden it in the rain. It would pop and backfire when trying to start it. I checked that the timing marks were aligned properly, adj. valves but still popping. The spark looked strong so I switched CDI's out with a good one I had in my tool box and it fired right up. The CDI I had came from a 50cc but it worked so...
I rode it and it rode strong so I collected my cash and left. I get a call yesterday that it's doing the same thing again.
I'm curious if the voltage regulator would be the reason it's blowing CDI's.
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Post by 90GTVert on Oct 25, 2009 9:30:06 GMT -5
I would suspect the magneto/stator before the regulator. It's wired directly to the CDI. I could be wrong, all my diagrams and stuff are on my computer that's messed up right now.
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Post by 190mech on Oct 25, 2009 19:14:22 GMT -5
Think I'd check all the connections at the stator,CDI box,coil,
ignition and kill switch before buying more parts.I've read
that a GY6 CDI box works killer on 2 stroke Minerellis,so there
is no reason the 50cc unit should'nt work..
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Post by Fox on Oct 25, 2009 21:32:00 GMT -5
Well, thanks for the tips guys but that girl decided to go with another guy. She thought I should replace the CDI and fix the issue for free sisnce I charged her the first time. I told her I could give her an hour's labor free but any parts were going to be on her. She declined. I rejoiced! ;D
I hate diagnosing electrical issues!
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Post by 2strokd on Oct 26, 2009 7:24:23 GMT -5
Sometimes the customer does the hard work for ya and makes it real easy  . I wouldnt be upset about that one either. |
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Post by dasurfguy101 on Feb 4, 2010 20:17:35 GMT -5
i had a 150.and im using the 150 cdi at the present time.works great.almost like the racing cdi.now with your blowing cdi problems.im writing this cause that is exactly what my 50 does.it only does it to the racing cdi.if i put the 150 in it or the stock one it fires right up.at first i thought it was a bad cdi.so i bought another one.same deal.rectifier?voltage regulator?idk.can ya help?i ride the scoot everyday and this "problem"has been lingering around in my head.it's not right!i need to correct this problem or i just dont feel confident in the scoot.thanx
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. I wouldnt be upset about that one either.
