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Discussion Starter #1
After a day of riding I slowly blew all the light bulbs on my sled (90 650 Indy, no battery)
1) Can I assume it is the voltage regulator? There is a yellow glow comming from it when its running. Are they expensive?

2) When starting from cold with the choke on, it will run, however when its warm it will not idle. Runs great if you keep on the throttle. I set the carbs as per my manual, any ideas??
 

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Sounds like the pilot jets are plugged. You have to take the carbs apart and clean or replace the pilot jets.
The other problem sounds like a regulator problem. The easiest fix is to replace the regulator and check the wiring. Make sure there are no shorts or broken wires in the harness.








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I think the regulators are supposed to glow. (?) Mine does it too. I had a problem on my 89 Trail where the wires to the tail light under the seat were shorting out, killing the power to every thing. I replaced the regulator because I thought it was bad- cause of the glowing. But it was fine. I wonder why they don't manufacter these things with fuses?

 

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choke off- loosen locknut on each carb. Turn adjusting nut out/in until 1/8" freeplay at toggle switch. Then do for other carbs. Be sure to lube cable to prevent ice. Do a carb sync while your at it. Need airbox off and adjust slides so move at the same time and same height. Make sure pilot and idle screws are the same for each carb. You need to get a Clymer manual, about $25 bucks, tells everything I just said and everything else you could possibly fix. Very much worth it. Easy check for piston rings is compression test.
 

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Discussion Starter #9
Thanks for the help. One carb cable was sticking, now idles properly.

I purchased a manual, very helpfull (Clymer)
 
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