I'm a jerk.... (or will a PCIII help me?)

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Nomore76

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OK, I've done searches but I'm tired of reading all the posts because I didn't find the answer I was looking for immediately. Every post I've read mentions jerky throttle response. The way I describe the throttle response (on my '06) that it jumps from 0% to 10% instantly, then ramps smoothly from 10% to 100%. After putting 4,000 miles on my '06 I still can't get used to it. It's very disconcerting to trail brake into a corner and not be able to smoothly transition back onto the throttle mid-turn. The last thing I need is for the throttle to jump to 10% (+/-, my perception) as I'm apexing the turn with the bike leaned over.

Is this the jerkiness that a PCIII will cure? If so, I'm buying one because this is my biggest complaint about this bike.

BTW - I haven't done the throttle spring mod yet either, but I can't see that curing the jerkiness issue.

 
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just wondering here. If you shut down to 0% is it because you are shifting? If yes then more controlled release of the clutch would solve any jerky response. Remember the friction zone is your friend and it is free. :)

 
Yes. Most definitely a PCIII will solve that problem. A PCIII will smooth out the throttle at all RPM.

You might want to try the G2 throttle cam thing-a-ma-bob also. Others report that helps the throttle transition quite a bit also. Of course, you might want to do both for a really smooth throttle.

 
OK, I've done searches but I'm tired of reading all the posts because I didn't find the answer I was looking for immediately. Every post I've read mentions jerky throttle response. The way I describe the throttle response (on my '06) that it jumps from 0% to 10% instantly, then ramps smoothly from 10% to 100%. After putting 4,000 miles on my '06 I still can't get used to it. It's very disconcerting to trail brake into a corner and not be able to smoothly transition back onto the throttle mid-turn. The last thing I need is for the throttle to jump to 10% (+/-, my perception) as I'm apexing the turn with the bike leaned over.
Is this the jerkiness that a PCIII will cure? If so, I'm buying one because this is my biggest complaint about this bike.

BTW - I haven't done the throttle spring mod yet either, but I can't see that curing the jerkiness issue.
The answer you are looking for is YES, YES, YES, YES, YES !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! The PCIII will solve all your problems, no bull crap. I just put it on Wednesday. The best way I can describe it is that if the throttle was a surgeons cutting tool, without the PCIII I would be performing surgery with a Machete. With the PCIII, it is like having a percision scalpel in my hand. It is that big of a difference. :yahoo:

A have a degree in Mech Eng, and have jetted almost every bike I have owned, so I have an awareness of when there is a problem. If you understand how a bike runs when lean and/or rich, they you can immediately tell that the FJR is VERY lean off idle. One way of checking if a vehicle is on the border of being to lean, is to ride it in conditions that will make it more lean, and see if the bike runs worse. Like if a bike (with a choke - not the FJR), takes a long time to warm up to run correctly, without the choke on. Then this bike might benefit from a richer idle/pilot circuit. In my case, I live at sea level in CA. With crisp evenings, the air is very dense and the bike would run like crap. If I was driving inland when the temperature got to 100 degrees, the bike would not be as obviously lean. This to me was a sign that the jetting was on the edge of being too lean, and in many cases over the edge. If the fuel/air mixture was in the middle of the range between too rich and too lean, it would have more fault tolerance.

 
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Felt the same way about the throttle response as you do. first installed the G2 throttle thinginiwatchyoumacallit, it cut the problem in 1/2. then I installed the PCIII and it's like riding a different bike. Complete throttle control. A must have on a 06.

 
Yes, the PClll, and G2 thing will cure the problem that Yamaha should be

taking care of under warrantee, or a recall. I see no reason to spend $400

for their **** UP. This is a stock motorcycle with a "DANGEROUS" problem.

It seems that all the bikes are not affected equally, some members here

say there bikes are fine, whill others are nearly unridable. This tells me it's

possibly a ECU problem. The Suzuki Vstrom 1000 has similar issues, they

are replacing control units.

 
hi.

not trying to hijack the thread, but i too have the G2 installed on my 06AE.

it solved about 70 % of the problem.

i was considering the PCIII too, but im not sure i like the idea of disconnecting the o2 sensor.

if there was a way to leave the o2 sensor connected with the PCIII, i would be there in a heartbeat.

as i ride year round in all kinds of temps and weather conditions, i think the ability to adjust the

fuel mix based on the air that is coming into the engine is essential.

otherwise i would have to have a summer and winter map, and some others too.

too much trouble (for me)

am i wrong on the o2 sensor issue ?

jason

 
hi.not trying to hijack the thread, but i too have the G2 installed on my 06AE.

it solved about 70 % of the problem.

i was considering the PCIII too, but im not sure i like the idea of disconnecting the o2 sensor.

if there was a way to leave the o2 sensor connected with the PCIII, i would be there in a heartbeat.

as i ride year round in all kinds of temps and weather conditions, i think the ability to adjust the

fuel mix based on the air that is coming into the engine is essential.

otherwise i would have to have a summer and winter map, and some others too.

too much trouble (for me)

am i wrong on the o2 sensor issue ?

jason
If you don't want to disconnect the o2 sensor, you can try the Cobra fi2000. they just came out for the fjr. it's a closed loop system, so you keep the 02 sensor. haven't seen how they work, but they are quite popular with the cruiser crowd. i've had cobra pipes and jet kits, and all were high quality.

 
am i wrong on the o2 sensor issue ?
Yes. Nobody around here who has a PCIII (a lot of us) runs different maps for different seasons.

You see, the O2 sensor is only for fine tuning the fuel mixture to reach a certain emissions level, which happens to be pretty lean. With the O2 sensor disconnected and the PCIII installed, the ECU is still making corrections to the mixture for all kinds of variables using the various sensors that are installed. The PCIII does NOT bypass the inputs from these sensors. So changes for pressure (altitude), temperature, and anything else the FJR normally adjusts for, are still being adjusted for, even with the PCIII installed.

 
thanks for the clarification.

looks like i might have to start saving.....

jason

 
I just returned from riding VA Hwy-58 in 27F with light spots of ice and tons of loose pea gravel everywhere. In addition to the cold temps and ****** road conditions, I was 2-up with a top bag. Let me tell you that if possible, I would have stopped on the side of the road and wired a PC-III on the spot today. Mine is on order from SportBikeEffects and should arrive this week.

I've done the G2 throttle tube mod and it definitely helped. I did a meticulous throttle body sync at 1,100 miles and that helped a bit.

On my 05 the Barbarian Mod took care of the remaining throttle jerk off bottom. My 07 feels lean way into the lower quarter-throttle range. So I'm not putzing around with a Barb Mod. Going straight for the jugular and applying PC-III this week.

 
Now that I've had more time to ride the FJR with both the G2 and PCIII i have to say this bike is an absolute dream. :yahoo:

 
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