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Discussion Starter · #1 · (Edited)
I recently bought my first r6 and realized that my bike doesn't run that well. I have a few issues that I hope someone could help me out on. My bike has a D&D slip on, k&n filter, and has been rejetted. Just last season the bike had its major service done where they changed the plugs, oil, drain the carbs, sync the carbs. I bought the bike 1000kms after that.

First, when I start the bike up in the morning, it stalls the first few times. I have to hold onto the throttle a little bit to get it running first and then apply the choke half way before it will stabilize. If I put the choke on all the way the bike will stall. I have to really play with the choke to make it idle just around 2000rpm range.

2nd, the bike will sputter around 4-6k rpm range on light-medium throttle. Occasionally, after the bike is warmed up, when coming to a stop the idle will be high until I blip the throttle and then it goes back down.

lastly, the bike seems to be running really rich because I'm getting horrible gas mileage (135kms before gas light comes on). Also, my friend told me that I was shooting out flames at some points in high rpms.

My thought on this is that the carbs have been jetted to rich and they also need to be re-synced. I'm really annoyed by the exhaust so I'm planning to go back to stock. My question is does anyone know what else I can do that could help solve my problem? Should I put back in a stock air filter, stock exhaust, and re-sync the carbs and go from there? I'll prolly check out the plugs to see if they are fouled. Is there anyway I can make some adjustments to the carb so that it won't run so rich? I don't know know what parts were changed but I looked at the receipt and it says 4 main jets were purchased.
 

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My R6 has returned!!
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You might have a problem with the jets and air filter just not playing nice together - filter may be starving the engine a bit (depending on the jetting) or the reverse. Your bad gas mileage is definitely due to the jetting - so I'd start there for the solutions to your problems. If possible, go back to stock jets and filter, if that solves your issue - bin those jets and buy an Ivans jet kit and get that installed.

I had a similar problem with my 96 zzr - she didn't like to go beyond 9500rpm took serious throttle and determination on my part to get her to 14000 rpm. She ran about 120-130 km on a tank - about twice the stock consumption. Turned out that I had a stuck needle. I re-jetted, cleaned and sync the carbs and replaced the filter, replaced the plugs cause they were charred from running rich - problem solved.
 

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i have an 01 as well, when ur bike is warmed up ur choke shoudl be turned off all the way... if it still idles high try adjusting the idle located on the right side of the bike(riding position) jsut above the oil cap. If the problem persists i suggest u take off the carbs and jsut adjust the air mixture screw then resynch it.. that should do it.
 

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I dont think your bike is jetted correctly...

The air fliter is your problem - We are meant to use factor but like most of us we dont...
Currently running BMC Racing Filter - Gave me hell until I got the back jetted correctly...

What kind of jet kit - Ivan or dyno - Was it jetted before or after the air fliter....

Basically get it rejetted again to make sure its rights
 
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