Throttle issues

I have the same issue & already took mine to the dealer & they were unable to replicate the issue. I was loaned a 2009 k1200rt for 3 days while they goofed off & ordered me a new dash b/c my odometer also went out... "from all the stand up wheelies i do" haha

I have had the same problem. If I turn the bike off, then to ON and cycle the throttle it seems to clear. I also called the dealer and told them what it was doing and they said if they can't duplicate it then there is nothing they can do. There is a thread somewhere on here talking about a throttle recall. I have a theory that it could also be the servo controlling the throttle body. Just a hunch.

Guys, I have a new thory. So, I want to defign the issue first just to make sure we are all on the same page. Let's say, throttle will not return to 0 when released. It seems to happen in any gear at any speed, let me know if this is right.

Anyway, the story goes like this. I took off today to ride at about 0930, got about a block from the house and the throttle would not return to 0. I shut the bike off, turned the key to on and cycled the throttle 3 times. Restarted the bike and took off again. A few miles down the road I could not get the throttle to go back to 0, I repeated the cycle of the throttle steps. And after a few miles it would not return to 0 again. I came home thinking I'm going to have to take the bike ito the shop.

When I got home I took out the owners manual and stated looking at the warrenty info (info in the owners manual about warrenty sucks) the new theory is an issue with the fuel evaporator system. I came across a schematic that shows the return line goes back into the intake manifold. I noticed you both are in the South east area and living in SC for some time I know it gets hot down there. Maybe we are filing the tank too much and filling the evaporator with enough fuel to make it feed back into the manifold and maintain the rpm's.

I rode long enough to burn the fuel down to about 3/4 full and I parked it. I'll give it time to let the evaporator do it's job and Ill let you know what I find out.

They do reset the TPS on scheduled service intervals. I think my limp mode issue was chalked up to interference with the TPS pickups. Ride-by-wire may just be very susceptible to RF/magnetic influence.

I thought that could be the case too, I usually ride with while using Bluetooth playing music in my helmet. The only issue with that is it would have to be one heck of a rf signal to interfere with the signal.

The fly by wire throttle is not affected by rf signals, its NOT a wireless system!!

The position sensors that make it work are magnetic and can be influenced by high doses of stray trons. I don't think any mobile devices would do it.

dragoontwo said:

Just because it isn't wireless doesn't mean that it can't be affected by EMI. Unless we took it apart, we can't say how well or poorly the cable is shielded.

Click to expand...

Read my reply again, no mention of EMI, I was refering to RF signals.
Sounds like someone jumping on the Toyota bandwagon, which as yet still no proof that EMI has affected the throttle, more likely a software issue, but it is causing contoversy at the moment, so I can see where your coming from.

I have to agree with the RF thing not being an issue. I work on planes and those things throw out all kinds of RF's and nothing is effected in the area. It would have to be some crazy RF signal

I fly military planes and every wire is RF shielded. Navy/Carrier based aircraft tend to be much more shielded than say an Air Force bird. We still get flux and interference issues in heavy radar saturation areas. SPY-1 DDG's/CG's have been known to fry cell phones/iPads/MP3 players/watches...on low power. Our ordnance even has to be EMI rated.

Can't speak to civil aircraft, however, their RF exposure is minimal compared to a carrier strike group.

The dealer changed the throttle sensor today on my HS because of errors while riding (no way to make engine going above 4000 rpm).

Hope this will solve the problem.

BTW the throttle is much more tough than the original. The spring is harder.

It is much more like non electronic throttle. It feels like my old st3, unless the engine is still very responsive. You don't crank it on on a bump on the road like with the previous one

niiico said:

It is much more like non electronic throttle. It feels like my old st3, unless the engine is still very responsive. You don't crank it on on a bump on the road like with the previous one

Click to expand...

Sounds like an improvement! But I have slowly gotten used to that very short-turn control - not even 1/4 turn which is a 'racing' throttle to me.