Phbh28 advice please

[dickie]

Folks. Advice on which way to go from here please?

Stage 4 or 5 (whatever that means) piston ported 175 cast iron.
Phbh28 with breathe sweet filter
Gori 48mm (not the gp50 type)

Currently have

50 pilot
40 slide
Av264
X13 on top clip (leanest)
112 main.

[Rich Oswald]

Folks. Advice on which way to go from here please?

Stage 4 or 5 (whatever that means) piston ported 175 cast iron.
Phbh28 with breathe sweet filter
Gori 48mm (not the gp50 type)

Currently have

50 pilot
40 slide
Av264
X13 on top clip (leanest)
112 main.

Which way do you need to go, richer or leaner?

Rich'

[ULC Soulagent]

Folks. Advice on which way to go from here please?

Stage 4 or 5 (whatever that means) piston ported 175 cast iron.
Phbh28 with breathe sweet filter
Gori 48mm (not the gp50 type)

Currently have

50 pilot
40 slide
Av264
X13 on top clip (leanest)
112 main.

Which way do you need to go, richer or leaner?

Rich'

+1

[rossclark]

How is it running?

What is the plug colour like ?

What is the problem you're asking for advice on?

[dickie]

Sorry gents. Crap question.

I think I need to go leaner on main.

Also, I don't like that I'm on top clip of x13 so was thinking to go x7 and raise the needle.

I'll check plug when I drag my arse out of bed.

I'm hopeless with jetting

[dickie]

So, my mate had a ride this morning who has a much better feel for things than I do. He tends to ride one way only; wide open throttle like a teenager.

He reckons it's pretty good but struggles in fourth. I'm thinking it needs a smaller main.

Anyway, here's the plug which looks perfect to me, so maybe the main is correct? Not a proper plug chop, but as he tends to ride WOT only, it's probably a good indicator of main?

Or is it a little dark? if so, maybe drop to 108 main?

2020-08-31_11-33-40

[ULC Soulagent]

Plug looks fine
You could drop MJ 2 points