hi guys
what you think about my jetting i got the full ct racing exhaust 170and 175 jets stock pilot jet,at the beginning it was running verry good,but now it makes strange things.it pops when at full speed gas is released.and i can t do wheelies because she s getting out.i also removed now 3 disks on the exhaust and it s a bit better but not good.
and i m at 1400ft elevation and lid off from airbox

do you think i should get a bigger pilot or change the jetting

 

wow did you read the instructions.... you need to purchase a jet kit for this bike. sounds like your didnt adjust your needles. and your jetting is off.

im at like 200ft elevation and i ran a 170 175 jet, c-clip needle is 3rd notch and fuel screw is 1.5 out. your jetting and needles are way off. leave all the discs on.

 

Your jetting sounds close........If your getting DE-celeration popping, yes go up to a 25 pilot........and check your exhaust for leaks......
Good luck and welcome to the yamaha forum[img]i/expressions/face-icon-small-smile.gif[/img]

 

BS your way off, check you needles, i run those setting at sea level.

 

I agree with that statement.........

Good luck barclay, maybe do a search in the yamaha forms and you'll find an answer your looking for.......

 

Start at 170/175 mikuni main jets, ct titanium needles on 3rd clip if you purchased them, gytr needles in the same position if you didnt, 25 pilots, and 1/1.5 turns on the air screws all with 16 discs. At 1400 foot you should be closer to 165/170 mains.

The big deal is the needles, you cant use the stockers on that setup and expect to have a smooth midrange even on the 5th clip, the taper (or lack thereof) just stinks.

 

i got the ct jetting inside and clip at the 4th stage,i was running in italy with this setup at sea level and it was the same nothing better,and we were driving on a raod from sea level to 1500ft elevation and there was absolutly no difference.i just checked my spark plug again and i found it good the way it is looking.will try to put a 25 pilot and see if it s better and then 165/170.
thanks for the answers:-)