Problems with my 2012 Roadster

A.) I’ve only ridden the bike for about 200 miles, and it’s stalled on me twice so far. Both stalls occurred while decelerating. In fact, both were while I was decelerating in second gear and pulled the clutch in. The bike was fully warmed up during both occurrences and actually happened towards the tail end of the ride both times.

B.) The bike sometimes has an erratic idle. It will go anywhere as low as 500 and up to about 1K. Again, it will do this while fully warmed up.

C.) I use my engine for braking. When I downshift, I’ll blip the throttle to rev match so not to lock the back tire up. Sometimes when I blip the throttle to rev match, I get a back fire from the bear claw section.

Ok I will add my two cents worth as I agree your Stepper motor, Primary TPS and ECU are a wee bit out of sync. It could be they are or were in tolerance and tolerances are there to allow some further tweaking. I suspect when you get off the throttle and she dies it is because of the stepper motor being fully retracted or retracted wee bit to much in which the idle speed cam is retracted more then it should be verses the TPS and actual throttle plate opening engine rpm, timing and a multitude of sensors I do not fully understand. (I bet the main throttle plate opening has a tolerance when it is set during assembly also).
This sounds like a lot but Tweaking is all. It is like balancing the throttle bodies, how particular you are?

This is why when your bike is surging at idle it is searching for the right combination needed to idle if the TPS is out of synch with the stepper motor then the ecu has to compensate. I suspect this is not as easy even thought it is a computer. It has to compare throttle location verses rpm, TPS position, timing. Get this closer and I bet you will find some if not all of the popping you feeling in you seat goes away also. I see where your telling it to dump fuel at a certain position and oh right after that lets change the the ignition timing right after I dump the duel and cut off the air. I wonder if this causes a larger ignition event during valve overlap when it is not needed. O does the TPS being out change the ignition cell for the better or worse.

Ok more then two cents and I am starting to think out loud :)

I do think it is just some adjusting on the sensors and playing with the tolerances they allow.
 
Ok I will add my two cents worth as I agree your Stepper motor, Primary TPS and ECU are a wee bit out of sync. It could be they are or were in tolerance and tolerances are there to allow some further tweaking. I suspect when you get off the throttle and she dies it is because of the stepper motor being fully retracted or retracted wee bit to much in which the idle speed cam is retracted more then it should be verses the TPS and actual throttle plate opening engine rpm, timing and a multitude of sensors I do not fully understand. (I bet the main throttle plate opening has a tolerance when it is set during assembly also).
This sounds like a lot but Tweaking is all. It is like balancing the throttle bodies, how particular you are?

This is why when your bike is surging at idle it is searching for the right combination needed to idle if the TPS is out of synch with the stepper motor then the ecu has to compensate. I suspect this is not as easy even thought it is a computer. It has to compare throttle location verses rpm, TPS position, timing. Get this closer and I bet you will find some if not all of the popping you feeling in you seat goes away also. I see where your telling it to dump fuel at a certain position and oh right after that lets change the the ignition timing right after I dump the duel and cut off the air. I wonder if this causes a larger ignition event during valve overlap when it is not needed. O does the TPS being out change the ignition cell for the better or worse.

Ok more then two cents and I am starting to think out loud :)

I do think it is just some adjusting on the sensors and playing with the tolerances they allow.


I do believe I'll allow them to handle all of that lol.
 
And stop "blipping the throttle" going down through the gears , it's a Harley thing ... and it will eventually f#ck your cam chain.



i agree brakes are made for stopping. the transmission and motor are not. i usually pull my clutch in and shift down at low speeds and it goes in to lower gears real nice. some times i like to hear the pipes so i blip the throttle and downshift. when i do that i am putting more stress on the motor,transmission, working the tps and throttle cables, and like tom cat said cam chain.
i built a motor for my wife's mercury and every morning my wife would play with the throttle i finally got tired of complaining after a few years one morning she was revving it up and it sounded peculiar and quit.
i then reminded her how i used to tell her not to rev the engine in the morning. (bad timing chain)
we can play with our motors but it will cost some in the long run.;)
 
Update for anyone interested. Just got back from the dealer. The stepper motor was out of spec by one tenth of a degree. The broken bracket is actually connected to the manifold assembly. They adjusted the stepper motor and put in a claim for that and the bracket. I got a call a few minutes ago letting me know triumph is covering everything. I'm very relieved about that. Seems silly to have to replace an entire manifold assembly for just 1 bracket that mounts a heat shield doesn't it?
 
Update for anyone interested. Just got back from the dealer. The stepper motor was out of spec by one tenth of a degree. The broken bracket is actually connected to the manifold assembly. They adjusted the stepper motor and put in a claim for that and the bracket. I got a call a few minutes ago letting me know triumph is covering everything. I'm very relieved about that. Seems silly to have to replace an entire manifold assembly for just 1 bracket that mounts a heat shield doesn't it?
Agreed... But whatever it takes to get it fixed can only be a good thing
 
Update for anyone interested. Just got back from the dealer. The stepper motor was out of spec by one tenth of a degree. The broken bracket is actually connected to the manifold assembly. They adjusted the stepper motor and put in a claim for that and the bracket. I got a call a few minutes ago letting me know triumph is covering everything. I'm very relieved about that. Seems silly to have to replace an entire manifold assembly for just 1 bracket that mounts a heat shield doesn't it?
What was the outcome with the rear brake, pedal adjustment? No free play so the brake is on a bit with the pads dragging all the time.
 
What was the outcome with the rear brake, pedal adjustment? No free play so the brake is on a bit with the pads dragging all the time.

Since my initial post, I've figured it's just a combination of how hot it was, the fact that the exhaust with cats is less than a foot away from it, and the fact that the bike is a behemoth all causing them to get a little hot. I made it a point to go for a ride without using the rear brakes at all and the caliper and disk were both cool to the touch. I don't believe anything is dragging.
 
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