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miss firing

Posted: Mon May 19, 2008 8:53 am
by tng21
Hi fellas.

In the last couple of days my bikes started running on 3 cylinders. The thing is its only missing at high revs. Well i say high, just mean in the upper end. If i accelerate at normal city pace, the bike runs on 4, but if i open up the throttle properly, its splutters and runs on 3.

I bought 4 new spark plugs but still does it. Thought it might be the coil pack but if it was wouldnt it miss even at low revs?

Going to change the leads to see if that helps ut any other ideas?

Re: miss firing

Posted: Mon May 19, 2008 9:08 am
by masterofinsanity
could be one of the leads breaking down when it gets hot? or even 1 of the carbs playing up?

Re: miss firing

Posted: Mon May 19, 2008 9:46 am
by tng21
well im going to change the leads today, providing they no tthat expensive, ( thought the plugs would be cheapish but £27 for four shocking ) and see if that solves the problem, but if it doesnt i dont know what it would be.

Re: miss firing

Posted: Mon May 19, 2008 10:13 am
by masterofinsanity
i paid £32 last time i bought a set for the zxr and that was about 6 years ago.

Re: miss firing

Posted: Tue May 20, 2008 12:44 pm
by Gemini
may b the headgasket

would cause misfiring under load

gem

Re: miss firing

Posted: Tue May 20, 2008 4:37 pm
by tng21
well sorted it now, was just toad in the carbs. My mate just told me to keep on pulling it through up the range and it might clean the toad out of it, spluutered like a bitch, then it just took off, must of pulled it through coz she fooooooking flies now

and im back on the road once again lol

cheers anyway guys

Re: miss firing

Posted: Wed May 21, 2008 7:30 am
by RedexRobB
dont forget to bung some redex in there and clean those carbs out proper! :smt002

Re: miss firing

Posted: Wed May 21, 2008 8:10 am
by zimm
you got shares in redex or something Rob ?

Re: miss firing

Posted: Wed May 21, 2008 2:38 pm
by RedexRobB
lol, your not the first person to say that and im sure your not going to be the last! :smt003

Re: miss firing

Posted: Sun May 25, 2008 12:13 pm
by tng21
yeah have been told to do that cheers rob.