until 1993 carb is 28PHBH/FS (screws on left) later is 28PHBH/FD (screws on right) . UK specs are 135,38,60 , french specs are 132,38,55 and i recommend 138,42,65 and to set the throttle needle on the 2nd notch from the top
Get on to these www.dellerto.com, email Matt Cooper, just tell him the sizes you want and make+model of your bike. he will email back with price and how to pay. There great i had my jets from them. Fast delivery aswell.
do not change anything richie , 138,42,65 is the right choice :
main 138 , slow (idle) 42 , power 65 . if you have already 42 & 65 just phone to mattew and tell him , he will certainly accept your cancel about power & slow jets . sorry for that richie !
been reading NSR tips and it says if i up the jets ill have to adjust the airbox to suit, is this true? also do i just screw the old jets out and new ones in? or do they have to be at a certain position?