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Discussion Starter · #1 ·
Hi, I changed the sparks on my 2001 R6 yesterday - met a few problems. Firstly, i put it all back together and it wouldnt start - when i got it all back off again it worked out that when i pulled the air filter housing off it pulled the carbs out of their assembly!!!, so pushed them back in put it all back on and it works....kinda!

I think it might be firing on 3 cylinders but i cant really tell, this is my first bike. How noticable would it be on 3 cylinders? I think it sounds a bit lumpy and when i rode it there seemed to be hesitation in the low revs. Appreciate any suggestions.
Cheers
 

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my suggestion would be to take it all apart again and check the ignition coils and the plugs again i think u might be able to tell if they are firing if u look at it closer., but anyways i think if u only have 3 working, the biek shoudl start anyway...
 

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Heres what to do to check if you are running on three. Remove gas tank (or slide back if possible). Remove air box completely so the carbs are exposed and you can see the ignition coils. Start the bike. You need to do this somewhat quickly as you will run out of gas in the lines in about 5 minutes if you took the tank off. While the bike is running (and while wearing some decent insulating gloves...if you want) pull one ignition coil out at a time. If that cylinder was firing, you'll notice the sound of the idle get rougher. If there is no change that is a good sign that cylinder wasnt firing. Another way is to check the heat of each header tube, but I prefer the ignition coil method.
 

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Discussion Starter · #4 ·
cheers for the suggestions guys.

I took the fuel tank and air filter box back off and done as you suggested (disconnected one ignition coil at a time). Now when i removed 1 and 4 it significantly changed the sound of the engine and it ran much lumpier, but when i took out 2 and 3 it stalled the engine completely. I then took out the sparkplugs 1 and 4, the gaps on #1 seemed a bit small so i put the old one back in to see if it made a difference and 4 seemed fine.

Now it is better but i still dont think it's 100%, it sounds different - not necessarily worse but i can just tell a difference. and it doesnt seem as responsive in the low revs, like when i just blip the throttle it doesnt jump up as much as it used to. I was wondering if it could have been a problem to do with when i pulled the carbs out of their assembly?!!?

Cheers guys (sorry for the long post!!)
 
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