100mph + problems

[Random]

Bike has problems getting past 100mph have had the full speed of 140mph out of it on my long driveway but now since i changed the cams, rocker arms, cam chain and other little things when it get to 100mph the sounds of the engine is different sounds like its topping out. Any ideas ?

[masterofinsanity]

have you checked the timing? sprockets may have moved a notch when putting the cam chain back on?

[Random]

Yeah i thought that but i checked them all a couple of times and when i put the new cam chain and cams is i timed them up witht the marks on the outside parrell with the engine top rotated the engine to take up the chain slack but still no good.

[RedexRobB]

Are your carbs balanced? That can slaughter your engine performance if they arent right. If its lumpy on tickover then they probably need doing.

Might be worth checking the filter, i know my ZXR sounded loads different when a new filter was put in after a service.

[Random]

it's got a new KnN filter all the carb needles have been checked and balanced the carbs up i think i'm going to have to get it dynoed to check the mixture with KnN

[RedexRobB]

oh i see, hmmm, thats gonna change all sorts. Thought you would need to get it dynod at least to get it all setup properly. Stuff like that isnt going to work right away i wouldnt have thought. Could be its given you alot more midrange at expense of the top end....

[Random]

the thing is that it had the KnN when i got the bike are it works fine but i did give it a good clean so maybe it was so mucky it didnt need the mixture sorting out lol

[RedexRobB]

lol, i dunno, why touch what aint broke

[Random]

It is broke above 100 mph and when i'm riding with the gixer 1000 's i need it to get to the 140mph
i need to start going out with a scooter gang lol

No it pisses me off knowing that the bike isnt right and i cant find whats wrong with it.

[masterofinsanity]

dont think you need to mess with the carbs if you are just using a k&n replacement element unless you have a race system too?

[Random]

Standard downpipes and race can