Disable TCS?

[WJBertrand]

not one time. on dirt roads with heavy wrist, it flashes.. coming up say a rocky hill where the wheel can hop momentarily but not heavy throttle, it feels like the engine is missing on a cylinder, nothing on the dash to indicate TCS was taking over.. once TCS was disabled, the issue went away (but not after 4 hours of trailside tear-down to find the electrical wire that was shorting, but really wasn't).

don't want to derail the thread, just thought it was something interesting that reminded me of the problem I had while the details were fresh in the mind

That seems strange. I got into a situation where the pavement suddenly ended requiring climbing a severely wash board unpaved uphill. The TCS nearly brought me to a complete stop. The TCS light was flashing furiously the whole time, worse the more throttle I tried to use. I was with a group of riders, many on Sport Touring bikes and they all stopped at the bottom of this section, and after much discussion, most turned around to find a different way. I intended to continue with TCS set to 2, but during the delay shut off my engine temporarily and of course TCS defaulted back to 1 and I forgot to switch it again!

 

[DamonS]

That seems strange. I got into a situation where the pavement suddenly ended requiring climbing a severely wash board unpaved uphill. The TCS nearly brought me to a complete stop. The TCS light was flashing furiously the whole time, worse the more throttle I tried to use. I was with a group of riders, many on Sport Touring bikes and they all stopped at the bottom of this section, and after much discussion, most turned around to find a different way. I intended to continue with TCS set to 2, but during the delay shut off my engine temporarily and of course TCS defaulted back to 1 and I forgot to switch it again!

oh man, yes.. washboards definitely drive the TCS insane. not necessarily a Yamaha TCS issue as i had a BMW car that used to be almost impossible to drive on the country roads where I live.

I didn't even think to try with the other TCS mode *facepalm* .. it would have been interesting to see if things behaved different, but I figured we were in a pretty remote location, scenery was nice and the ground was perfect to make camp, so I (stupidly) decided to check every single connection on the wiring harness, remove and test the coils, the plugs, and the throttle bodies, traction control wasn't even on the radar because the light wasn't reminding me, and I did think to check for trouble codes. My only guess is that the wheel hop and steady throttle caused the misfire to happen so infrequently that the light signal wasn't long enough to actually trigger the light?

bleh, all this is good to know either way.. i may have stumbled upon an edge case of the TCS programming, slow speed, uphill, steady and not increasing throttle, wheel freespin/hop for about a 1/10th of a second, every 5 or so seconds.... makes the bike feel like you've got either bad gas or an electrical issue. well that's one less thing to yank off the bike over the winter thanks so much for the added details

 

[Don in Lodi]

I've liked the TCS 2 for most of my off road stuff, even hills. Off allows for full wheel spin, can be as bad as TCS 1 without a good skill set for throttle and clutch. The TCS shuts off either the spark or the injectors, that's why it feels/sounds like a misfire, it is.