hi there, ive got a misfire at high revs. im running a 55 pilot and a 160 main, going by the colour of the spark plug and the fuel air mix screw i seem to be about right. ive removed the complete air box and fitted a k&n copy cone air filter. the exhaust is a highway hawk muffler that seems to be pretty free flowing and has had loads of holes drilled into the end plate to allow better flow.
is there a pipe from the carb or airbox i should have blanked?
any ideas???

today i went to a 155 main with the 55 pilot and things werent to bad, the miss fire is still there but not as bad. tried the 52.5 pilot and the miss fire got worse. so do i go up to a 57.5 pilot and see what happens?
it seems to be the mid range thats the problem, ive shaved the spacer down to about half, will removing the spacer altogether help?

it seems to splutter n misfire at about 45-50mph in second at full throttle, change up a gear and away we go then as the revs rise it splutters n misfires again.

someone please help with this im getting to the point where im losing interest in the bike.

doesnt seem to have a set rpm to do it at, was fine before i removed air box and fitted new filter.

here you are kenny
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1183926901/0

pyke13 wrote on 06/12/16 at 11:34:00:


For the sake of troubleshooting you may be ahead to put it back and see what happens.

The problem may also be what is posted above, the filter tube may be causing this.

A bit of light oil, Vaseline, on the face of the carb, install the tube, and look at it. Wherever you see it on the rubber,, that is where you are having a problem.
I don't know if it has to touch or just be close enough to diminish the flow. Since it's
At RPM, I am kinda thinking it's either not closed off, or only on one end, or just close enough to shut the flow down and mess with it.

Pop the filter and rubber tube off and go for a ride.

Don't lose interest,, it's not that bad.

I can't believe you're going 45-50 in second gear !! It ain't no ninja !! At that point the ign. module is fully advanced,shift to a higher gear! by 40 you should be in 3rd, by 50 in in fourth !! your exceeding the red line in second gear !! the bike's alright ,it's not so much missing as crying for help!The bike is rated for 85-88 top speed what made you think you could get half way there in second gear?

read thru the post and checked my bike, looks like that is the problem.
should have it sorted tomorrow night, thanks for all the help

the air filter, same as the picture above. cheers for pointing it out to me.