PHBH 30 jetting

[Fruitjuice]

I'm setting up a Stage 4 200 with clubman, PHBH 30 Dell'orto and a remote Ram Air filter.
Carb came with 70 idle jet and a 115 main jet.
It runs but I'm guessing the idle should come down a bit and the Main go up a bit?
Anybody else running something similar?

[roli-olo]

I don,t myself but take a look in carburettor set ups on this forum there may be something similar on there.

[lammydave]

X7 needle (2nd clip from top)
70 choke
AV264 Atomiser
120 Main
55 Pilot
40 Slide

the above work perfectly on my 200 mugello and RT195 Kit
(both with remote filter)

[mick1]

X7 needle (2nd clip from top)
70 choke
AV264 Atomiser
120 Main
55 Pilot
40 Slide

the above work perfectly on my 200 mugello and RT195 Kit
(both with remote filter)

+ 1 but that's only a guide, every scoots different so plug check at different throttle positions

[Fruitjuice]

Thanks guys, will check my needle and do some checks, just wanted to see how far I was off....

[ktmh5]

Are you sure it's a 70 Pilot jet and not 70 choke 'cos a 70 pilot is massive?

Rich'

[Special X]

X7 needle (2nd clip from top)
70 choke
AV264 Atomiser
120 Main
55 Pilot
40 Slide

the above work perfectly on my 200 mugello and RT195 Kit
(both with remote filter)

Use the above with an X13 needle in clip 1 . . . . . . . the X7 has a weak spot around half throttle which could cause catastrophic failure going uphill between 1/3 and 2/3 throttle. This will show up as a sagged or holed piston way down the line on nicasil barrels ... on your iron barrel it'll tend to soft seize under the above conditions.