Reba

I will look at that now. I'll let you know. I think it might be the throttle position sensor......... testing that now in the garage.

Reba

Could it be that my ccts are to tight?

skokievtr

that VTR CCTs go or the frequency is overstated? Did u instal APEs? How did u set them, there is tons on that?

BTW, sidestand switches can cut out in the rain too!

Reba

Yes, they are apes...Read up on them before I installed. I installed per a forum on here. It was very detailed. I realy don't think that is it but right now I have my laptop in the garage trying to diagnos. Any help would be appreciated.

FL02SupaHawk996

Reba, when you reinstalled the tank did you hook-up all lines correctly? Check the stop-**** nipple that you put the vacuum tube on to make sure it's right cuz sounds fuel related to me

Hawkrider

Try using the choke as a troubleshooting tool. Pull the choke out a little bit and ride the bike. If the condition gets either better or worse then it's most likely a carburetion problem - better and you're too lean, worse you're too rich.

Also, do a search on "PVLIR". This is pretty common.

Hawkrider

FL02 beat me to it by 3 minutes. Still, do the choke check.

FL02SupaHawk996

Reba, you're in good hands with Greg
RC

Reba

Okay so here it what I have found so far...... I fixed the choke position.....my error.... black smoke is now gone. Tried testing the throttle control sensor but I am not getting the correct readings....so I went back to the ICM and everything seems to be fine back there. Does this mean the TCS is bad. I am about at my wits end with this thing!!!!! After I fixed the choke I got it up to 9k RPM but had to gradually get there. Still cannot hammer down on the throttle or it starts breaking up sooner.

Hawkrider

If you think it's the TPS just diconnect it and ride it. The ECU will not include the sensor's lack of signal in the map, and the bike should run just fine.

Are you absolutely positive you don't have the vacuum line attached to the bottom of the petcock?

lazn

You checked PVLIR? (I always go easy first..) Also how far off is TPS?

Reba

Greg, I did remove the TPS and yes it runs just fine....that is .... until you hit 7k rpm and the hard throttle and if not hard on the throttle you can baby it up to 9k rpm. And please forgive me but I am new at theis.... What is the PVLIR? As far as the gas tank goes all lines are hooked up correctly. The samll hose will only fit on the back one. Again thanks so much. This is the first project I have done like this.

Hawkrider

So with the choke on it ran worse? Have you checked your air filter?

Reba

Yes, when I pulled the choke out it ran worse. The air filter seems fine. What else can I check? With the TPS out it runs but you still can't crack down on the throttle without it breaking up bad.

Hawkrider

Sounds like you might be running too rich. How about pulling the air filter and trying to ride it?

I'm inclined to suspect one or more coils are breaking up but if you're saying that this troubleshooting has resulted in inconsistent running conditions then it's probably not that.

Have you been into the carbs at all? It is the same at idle as it is under load (breaking up when opening throttle)?

MudSwettinGears

Reba
PVLIR is "Petcock Vacuum Line Inadvertant Relocation"...I ran into the same problem this week after I had some bodywork done, tank repaired, etc. I assumed the guy who put the bike back together would know where the vacuum line is supposed to go, I was wrong. Beat myself up trying to figure out what was wrong with it. Looked throughout the forum and found that a bunch of folks had the same issue...vacuum line DOES NOT go on the nipple located on the bottom of the petcock, it goes in the rear of he petcock. Don't know if this solves your problem, but it's a start!

Motohead

Double check you cam timing doing both cylinders per the manual. I'm betting you have one of the cylinders timed on the wrong stroke. Been there...nice and torquey, hits 7k and falls on its face.