PCIII too rich for meeee

anyone have experience leaning out a PCIII map? I am going to just do it with the buttons on the unit, adjust the low RPM one light or two leaner (each light = 2% leaner/richer). Right now I have the -003 map (staintunes/K&N) it runs well but seems really rich (black fuel deposits at exhaust tips and fuel smell in exhaust).
I run a BMC air filter, Leo Vince CF cans, and, of course, the PCIII.

Let me know if anyone has had luck with this. :unsure: thanks! With all this mileage talk, this may be a good way to eek out some MPG's...

ps.... :ncb:

 

I've got staintunes and PCIII with the same map downloaded from the website.
I'm very happy with the tuning so far.
Someday I'll have a custom map done. It will be interesting to see what the difference will be from the downloaded map.

 

No answers for your specific question but I have one of my own. I'm just getting ready to have my pcIII installed by the dealer on 6/1. Other than letting them know about the two bros and the k&n is there anything else I shoul request?

 

Were o2 sensor eliminators installed when the pcIII was installed?
I'm not sure if it would make a difference, but worth checking...
The shop I bought my PCIII from didn't know anything about this.

I checked my exhaust and there's almost no residue after about 750 miles so far.

 

Mine is running really rich, there is a good amount of residue. I had the o2 eliminators, the BMC air filter, and the new cans on there when I installed the PCIII. I tried leaning it out last night just using the buttons on the unit (you can lean out or richen the mix for low/med/high range) I didnt notice much of a change in the performance of the bike, I am gonna clean the pipe ends and see if more carbon accumulates.

to HAVCAR, you should install your PCIII, it is suuuuper easy and will save you monies. It is one connection, and a quick lead to the battery. Bada-bing. Then you just program it with your computer which is like downloading pictures to your digital camera.

I will let you folks know how she is running in a few days...

 

Could the map your using be for a full system. Kinda sounds like it to me. Most slipons and filters dont warrent a PCIII unless you want to fine tune on a dyno to perfection. The PC maps you download in this case aren't any closer to perfection than not having the PCIII. But I dont have much experince with the VFR so could be leakin on the wrong tree. My experience is with the Hayabusa.

 

Howdy Neverlos; Have you pulled any sparkplugs and looked at the color of the insulators? Also are you still running the stock cat. convertor? From my experience with cat.convertors; that is if they are working properly, it is very hard to smell the gas in a rich condition,what you usually smell is a very foul rotten egg smell. I would go back to the last set up that it ran well with and get a base line from there,once this is done you should make your changes one at a time until you get the rich condition again. I know this sounds like a PAIN,but without fancy diagonistic equip. I feel thats its the best way to go. eddie

 

eddie I think you are right, I will probably take on the project this weekend. Although I leaned it out with the buttons on the unit and it seems to run much better at the moment, so I might let the beast run for a bit. I will take your suggestion and look at the plugs though. Which plugs do you think are easier to extract, the front or the back? I just need one out I think.
Thanks!

 

Hi NeverlosT; On my 5th gen, I am pretty sure the rear plugs are easier. The front plugs
are pretty easy to, except you need to detach the oil cooler mounts. I
suppose that you could get away just pulling one plug, but the more
plugs you read the better your assessment will be. Besides if you
determine the bike was running excessively rich, then its probably
time to buy a new set of plugs . eddie

 

Looks like you and I own the same bikes just different years.

The old way of checking if you were rich or lean is to get the bike warm, run it about 55 -60 and hit the kill switch, pull the plug if its dark or wet your rich, if its lean the plug is white and dry. Running the bike to lean for an extended time will burn valves. If you are having a problem at a certian RPM and dont now if its rich or lean run it at that RPM for a 1/2 mile or so and hit the Kill switch, check the plug and you will see which way you need to go. :smile:

 

About 3 months ago I got an email from Dynojet that they now have a map for a 6th gen, Leo Vince slip ons, K&N filter and o2 eliminators. I have been running it for the last 3000 miles and have not noticed it is leaner than the Cozye map I had been running. You might check into this.

 

pciii cannot be correctly adjusted unless you have an EGA. This is typically done on the dyno...unless you happen to have an onboard EGA. I would not recommend just spinning the wheel and doing a baseless adjustment with no true way to tell the ramifications of said adjustment. the map you are running should not be as rich as you think it might be......sounds like something doesn't add up here.

 

Howdy Norcal; I agree with you the best way to determine air/ fuel mixture is with a dyno and an engine gas anylizer. Before EGA's were readily available we had to rely on plug reading,engine performance,exhaust gas temperature via thermocouples and just plain old observation techniques. Today we can dial our bikes in so much better. There are lots of people who really dont comprenhend this science. With the advent of lead free gas it makes it that much harder to read plugs,they just dont color like they did in the days of leaded fuels. I was mearly trying to get NeverlosT back in the ballpark with
basic plug reading. Once he discovers what is wrong I too would recommend him getting a custom map for his scooter. eddie