KingGroover Posted July 7, 2004 Share Posted July 7, 2004 I've been getting this high pitch whistling noise coming from the left side of the motor. Seems to be coming from the carbs area, it's loudest when you put your ear near the clutch slave cylinder. Happens when the engine's warm, around the temp when the fan kicks in. Starts off intermittently but within a minute increases in frequency until it's near continuous. Only seems to occur at idle speeds. Engaging/disengaging the clutch doesn't make it go away. Idling with power on the rear wheel doesn't make it go away. Bike still idles and runs well, plenty of power from what I can see. Any ideas? It's a CA bike so I'm guessing a hose or something? Maybe it's normal? I've only had the bike for a few months now. Thanks! Quote Link to comment Share on other sites More sharing options...
KingGroover Posted July 8, 2004 Author Share Posted July 8, 2004 I removed the left side panel and looked around for the source of the noise. It seems to be coming from down low, around the water pump. It's somewhere around the water pump, the spline where the gearshift lever runs into the gearbox, and some sensor. Any other ideas? Could it be a bearing in the water pump? :sad: Quote Link to comment Share on other sites More sharing options...
demon Posted July 8, 2004 Share Posted July 8, 2004 How many miles on the bike? Might be the water pump or the alternator. Put a voltmeter on her and make sure the charging system is working properly. If I remember correctly, someone here had their alternator stator start rubbing the windings and ruined the whole thing. :shock: Quote Link to comment Share on other sites More sharing options...
KingGroover Posted July 8, 2004 Author Share Posted July 8, 2004 thanks...mileage is about 15k. I'll try the voltmeter thing this evening. Quote Link to comment Share on other sites More sharing options...
Herc driver Posted July 9, 2004 Share Posted July 9, 2004 Tell the midget inside to stop whistling and get to work. Quote Link to comment Share on other sites More sharing options...
KingGroover Posted July 9, 2004 Author Share Posted July 9, 2004 Tell the midget inside to stop whistling and get to work. hehe Here are the voltages at battery terminals: 12.2V engine warmed up but sitting 5mins, ignition off 12.4V engine started, at idle 13.9V 5000rpm....<14.7V min spec 13.5V drop back to idle 13.2V ignition switched off Current leakage, ignition off: 0.536mA....>0.2mA max spec Argh, don't tell me I have a short...this might mess me up for the West Coast Bash :mad: Quote Link to comment Share on other sites More sharing options...
SD Marc Posted July 9, 2004 Share Posted July 9, 2004 Current leakage, ignition off:0.536mA....>0.2mA max spec Don't worry about the 0.536mA, that is from the clock and my bike and another I have looked at come in at about that. If you pull the fuse that has the clock on it you will see that leakage go away. . Quote Link to comment Share on other sites More sharing options...
KingGroover Posted July 9, 2004 Author Share Posted July 9, 2004 thanks marc, yeah just pulled the clock fuse a few mins ago and the leakage dropped to zero. Any ideas from anyone on the low 13.9V@5000rpm? Maybe I should repeat that with the clock fuse pulled... Quote Link to comment Share on other sites More sharing options...
Pete in PA Posted July 9, 2004 Share Posted July 9, 2004 Try the 13.9 volts test with the headlight fuse pulled, will go up. Sounds fine to me. Battery may be weak/undercharged. How old is it? None of this explains your noise though. :???: Quote Link to comment Share on other sites More sharing options...
Animal Mother Posted July 9, 2004 Share Posted July 9, 2004 Are you sure it is not just the turbo that was installed by the previous owner :razz: :poke: Sorry, I could not help it :grin: I hope you are able to find and remedy the problem though. Steve Quote Link to comment Share on other sites More sharing options...
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