Ok guys ive done everything I know how to do. On the way into work the other day the bike was running extremely rich. Backfiring when you decelerate and such. Then it will stall at a light. I'll pull in the clutch to stop, the RPMs will dip to 500 and stall but the bike will start right back up. It throws a code every now and then but not consistently. The code shows teh MAP sensor. I just pulled everything apart today and put it back together. Bike started fine, idled a lil low for start up but picked up. Warmed the bike reved it to around 6k let off and RPMs dipped again but didnt stall. Did it a second time and it shot a foot flame out the exhaust. Any ideas? Im getting antsy. For the record I disconnected my PCIII also.

 

sounds like fouled plugs to me

 

Just changed those out today. Wondering if its timing?

 

what kind of bike? maybe the regulator is toast?

 

its a 2005 CBR600 f4i. I think I have around 28k on it. Idk if it helps but im running a two brothers and k&n filter and PCIII. Regulator? what does that control?

 

a code is a code fix whats its tellling you is wrong. sounds like your having a fueling issue. if it was timing the bike would run like crap at all rpm . if its says thie map is bad replace it

 

+1 new map sensor

 

Correct me if im wrong but if it was all the MAP sensor wouldnt the code light come on every time I started it? Only throws the code when its a cold start. THe engine will idle at 1000 RPMs for a bit then rise to 1700.

 

the fpr regulates the pressure the fuel is going into your cylinders.

 

Have you even tried remapping it? Sounds like what's giving you hell.