ds 650 crappin out
Apr 2, 2012 | 04:46 PM
#11
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^^^^ not going to find a problem without starting it ... Im betting the rectifier is shot and the mag is overvoltaging the system. this test can be done while running as long as you dont over rev it and get the voltage to high. just go easy and watch the meter ... if it climbs to 15volts shut it down and replace the rectifier ......
Apr 14, 2012 | 10:49 AM
#12
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Weekend Warrior
Joined: Jan 2011
Posts: 9
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From: queen creek az
OK, checked voltage and everything was in range..got frustrated and took to dealer. I'm a bit embarrassed at what they found. A loose battery lead. I'm not sure how that would cause a fuse to blow and fry another NEW CDI box. Oh well, let this be a learning experience for all. The bike runs fine with the original box and hope to take out for a long ride soon....thx for all the help...great forum!
Oct 29, 2012 | 07:15 PM
#13
Weekend Warrior
Joined: Oct 2012
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Can some one give me some knowledge of the ds 650 wiring cause i get lights and revolutions but no spark. Recently put a new crank assembly in and it started for about two minutes and idled fine then shut off and ever since there is no spark. Ive pit two cdi boxes on and a new pulse generator. I have gone thru the harness from the generator two the box to the coils and i cant find a short or nothing can someone diagnose this. great forum![/QUOTE]
Oct 29, 2012 | 08:13 PM
#14
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Joined: Oct 2012
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Can some one give me some knowledge of the ds 650 wiring cause i get lights and revolutions but no spark. Recently put a new crank assembly in and it started for about two minutes and idled fine then shut off and ever since there is no spark. Ive pit two cdi boxes on and a new pulse generator. I have gone thru the harness from the generator two the box to the coils and i cant find a short or nothing can someone diagnose this. great forum![/quote]
Nov 11, 2013 | 05:16 PM
#15
Weekend Warrior
Joined: Nov 2013
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yep. The CDI needs good voltage to fire correctly. You cannot run these bikes with a dead battery. Check that the batt is in good condition and that the rectifier is charging the battery properly. If I remmeber correctly, you should get about 13.4 - 13.8 volts at idle, and possible 14.0 14.3 volts when you rev it up. The rectifier is supposed to max out at 14.5 volts, so if you see more than 14.5, that is a problem as well.
After you run the bike to the point it's "crappy", stop, turn off the engine, and check the voltage at the battery. You should see around 13.2 volts or so. If you are seeing low 12's, then the rectifier, battery, or both are bad.
After you run the bike to the point it's "crappy", stop, turn off the engine, and check the voltage at the battery. You should see around 13.2 volts or so. If you are seeing low 12's, then the rectifier, battery, or both are bad.
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