Join Date: 05-20-2011
Location: Newport News, Virginia
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Re: 98 CBR900RR idle problem
Blade, I checked the entire charging system as the manual instructed.
Battery voltage read at around 12.8v with bike off after a 30 minute ride
Resistance between yellow wires from stator 0.2ohm
At the R/R connector:
Green wire to ground - continuity
Red/White to ground - battery voltage (12.8v)
Yellow(s) to Yellow(s) - 0.2ohm
Battery voltage goes between 13.9v around 2500rpm and drops to 13.4 approaching 5000rpm (shouldn't it rise to around 15v with the increase in rpm?)
All connections look decent and nothing looks burned out.
I left the multimeter connected when I "stressed" the electrical system by pumping the brake to turn the brake light on and off and, as before, the idle speed fell, the battery voltage went down to 12.8v, and the bike audibly chugged and went as low as 1000rpm (and like I said before, would probably stall if I let it).
I disconnected the taillight and did the same brake pumping procedure and she didn't chug once. It is obvious to me that the electrical draw is definitely aggravating the gremlin.
Maybe I'll just leave the system alone and just keep the taillight and brake light disconnected... JUUUUUST KIDDING! But MAN this is kinda frustrating!
***EDIT*** I went to the local auto shop and bought LED replacement bulbs for the rear brake lights and, surprise of the century, NO GREMLIN! They are just as bright as the OEM bulbs but don't draw as much power, so they aren't taxing the system. I don't like leaving things half-assed but this will definitely do until I figure out where the real trouble is...
Last edited by uhhmoney; 05-24-2011 at 3:40 PM.
Reason: found partial solution