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| Gixxer Mixer GSX-R specific forum for those that crave power (but use it in a responsible fashion). |
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11-10-2007, 04:06 PM
| #1 (permalink) |
| Newbie  Join Date: Nov 2007
Bike: 2005 GSX-R 750
Location: London
Posts: 7
|  STV question
Firstly hi all ! I found this forum threw d kleins very useful STVA fault thread. Seems like a grate site so a big hello from london UK. I have a 2005 GSXR 750 that i bought new and have done 30000 miles on so far. I was changing the air cleaner today and thought id run the STV checks described in the manual. so.. before i hit the run switch with the ignition on the valves seem to be about 95% open as per the manual. with the run switch turned on the valves try to open more! hit 100% the servo makes a clicking sound and then the valves return to 95% open. According to the manual this is wrong, they should in fact first shut completely and then cycle to the 95% open position . If i close the valves by hand then hit the run switch they cycle all the way open, the servo clicks and then they return to the 95% open position. if i remove the STPS and hit run then valves close completely, the servo clicks and they stay there. i must add i havent been getting an F1 light from the bike i was just running the test and it seems that there is something wrong. It seems that the STV's are not working at all and that the bike is just running with them at 95% open all the time. The bike starts and runs but has little engine braking and also "chug's" a fair bit at small throttle openings. Im not to bad with general mechanics but electrics have my head spinning!! i only got a multi meter 3 weeks ago! but im keen to learn so an help would be grate. iv tried to test the resistance on the 4 pins of the STVA but to tell you the truth i cant make much sense of the readings as im a multi meter newb  the reading just seems to go up and then strait back donw to nothing.. like i said if anyone can shed light on this it would be a great help Adam |
