Holeshot full system and power commander installed

[OGRE]

I just got my holeshot headers and slip-ons installed. I'm very impressed with the sound. It's a quiet burble at idle and under light throttle, but you know there's a beast under the fairings when you crack the throttle open. I also installed a powercommander with the pipes and I'm using the holeshot map, it's designed for a stock air filter and I'm using K&N. I'm happy with the top end gain and there doesn''t seem to be any loss to mid-range power but there is a quite a bit of back fire when you back off the throttle at higher RPM. I want to get in for a custom map as soon as I can. Anyone know a good shop within a couple hours of upstate South Carolina?

 

[RiderCoach Lar]

OGRE, the PowerCommander website can direct you to a local tuner. Dale Walker's own map is the pretty damn good. You might want to try it before you pay for a custom map. As far as the popping on high RPM decels, you'll never eliminate it unless you disable the pulsed air injection system.

 

[OGRE]

Thanks for the reply. I'm really pleased with the Dale walker map, I still giggle like a kid with a new toy every time I twist the throttle, and I don't think I'll do a lot better... I'm just hoping for a little more with a custom map. Every bike is a little different and with the change from stock filter to K&N I'm betting I can squeeze a little more. I checked the dynojet website previously and saw that there are several certified tuners around. None close to me but several in day ride distance. I'm hoping someone has personal experience with one of the shops in Atlanta area, Hendersonville or Charlotte.

 

[Karl]

I just got my holeshot headers and slip-ons installed. I'm very impressed with the sound. It's a quiet burble at idle and under light throttle, but you know there's a beast under the fairings when you crack the throttle open. I also installed a powercommander with the pipes and I'm using the holeshot map, it's designed for a stock air filter and I'm using K&N. I'm happy with the top end gain and there doesn''t seem to be any loss to mid-range power but there is a quite a bit of back fire when you back off the throttle at higher RPM. I want to get in for a custom map as soon as I can. Anyone know a good shop within a couple hours of upstate South Carolina?

Hi Ogre,

I have the PCIII with Remus slip-ons and using the 409-002 Dale Walker map. It is a good map, but I also noticed a bit of the off-throttle popping. The thing that worked for me was to richen the 0 percent throttle column from all zeros to 10% peaking at 5K RPM. Taper the mix 1% from 5K in both directions for each RPM increment. Since you have the full header, you may have to tweak a bit here and there with the % and peak RPM, but the goal is to eliminate the sudden lean condition as you back off. Let me know how it works for you.

 

[Powerman]

Gutted cats, Leo Vinci cans, K&N, and PC.

I had back fire also. Plugged up the EGR or whatever Yamaha calls it. (PAIR on a Honda)

Just plugged up the hoses where they come up from the exhaust in the head.

Backfire cured.

 

[Dangerous Dave]

I have the PCIII with Remus slip-ons and using the 409-002 Dale Walker map. It is a good map, but I also noticed a bit of the off-throttle popping. The thing that worked for me was to richen the 0 percent throttle column from all zeros to 10% peaking at 5K RPM. Taper the mix 1% from 5K in both directions for each RPM increment. Since you have the full header, you may have to tweak a bit here and there with the % and peak RPM, but the goal is to eliminate the sudden lean condition as you back off. Let me know how it works for you.

Not trying to hijack the thread here, but wondering Karl if you're running your Remus cans open, or with the quiet baffles in?? I have the Remus Carbon cans with quiet baffles in and just got my PCIII in the mail today. I'm kind of wondering if I should run the 002 Dale Walker map, or perhaps the 001 "stock bike" map, since the cans are somewhat restricted I'm sure with the quiet baffles in. Anybody have any experience with this? Probably be a few days before I have time to install the PC. I realize it's like a 10 minute job, but I have bigger fish to fry at the moment. The FJR is perfectly rideable at the moment, my other bikes a little less so, so they come first. So many bikes...so little time.

 

[Karl]

I have the PCIII with Remus slip-ons and using the 409-002 Dale Walker map. It is a good map, but I also noticed a bit of the off-throttle popping. The thing that worked for me was to richen the 0 percent throttle column from all zeros to 10% peaking at 5K RPM. Taper the mix 1% from 5K in both directions for each RPM increment. Since you have the full header, you may have to tweak a bit here and there with the % and peak RPM, but the goal is to eliminate the sudden lean condition as you back off. Let me know how it works for you.

Not trying to hijack the thread here, but wondering Karl if you're running your Remus cans open, or with the quiet baffles in?? I have the Remus Carbon cans with quiet baffles in and just got my PCIII in the mail today. I'm kind of wondering if I should run the 002 Dale Walker map, or perhaps the 001 "stock bike" map, since the cans are somewhat restricted I'm sure with the quiet baffles in. Anybody have any experience with this? Probably be a few days before I have time to install the PC. I realize it's like a 10 minute job, but I have bigger fish to fry at the moment. The FJR is perfectly rideable at the moment, my other bikes a little less so, so they come first. So many bikes...so little time.

Hi Dave,

I am running them open and pretty much always have. Just prefer the sound and I think they are actually pretty mild for a straight open can. As far as the map, I would think that the stock bike map would be better if you plan to leave the baffles in as they actually look pretty restrictive with that crimped end. But you never know. Try the stock one first, then the Walker to see what works for you.

They are both actually pretty close, with the Walker map a bit richer through the RPMs. For me living at low altitude and temps, the richer mix works well, but if you frequently ride up in elevation or in a hot climate, then a leaner curve would be better. At least its only a 2 minute job to swap maps for the season.