I've followed along with all the previous post concerning the TPS adjustments with these WR's. Some don't mess with it, while others swear their bike runs better with it un-plugged. Sooner or later your probably going to have to deal with it, either to do a "off the bike" thorough carb cleaning or just a plain failure. I feel pretty sure that my TPS is out of adjustment after cleaning and working on my carb. Now it's my turn to deal it. After reviewing the 03 service manual (page 6-22) adjustment is made with a digital volt-ohm meter. So here's where the splitting hairs - technical questions come in. Manual states, first set Idle Speed Adjustment (page 3-19) Acceptable engine idle speed range 1700 - 1900 rpm. Second,with engine running, using a digital volt-ohm meter measure the TPS output voltage. Acceptable range 0.58 - 0.78 volts. Has anyone experimented with these range settings? Like setting the RPM to 1900 and volts to 0.78 or 1700 RPM and 0.58 volts and tested performance results? It may be that it doesn't matter either way as long as the TPS setting is within range spec but it might. It certainly seems like slight subtle adjustments matter to this carb. I have a digital volt-ohm meter but I don't have a tach to properly set my exact idle speed to make TPS adjustments. (I need to have a good tach on hand anyway, someone recommend a good one to buy). Nevertheless I'll have to make a proper TPS adjustment. Let me know your experiences. BTW: When I was at the local dealer the other day I happen to see the maintenance supervisor walking through the showroom and mentioned this whole scenario to him and he either didn't understand what I was talking about or I didn't understand his different method of setting the TPS. He described making the adjustment with the engine off and with throttle wide open.