Jetting phbh 28mm

[ducksta]

Hi guys just built engine malossi 180cc
Put a Delly phbh 28 built in powerjet on it , bike starts but won't rev like chokes stuck ony jets are
Bf3
60
50
135
Bn270
Slide 45
Any advice would help

Revs out with filter off

[ducksta]

Took filter off run it around block bit erratic low down once past 25 mph goes well

[ducksta]

Anybody?

[Jack221]

If the bn270 is the atomiser, then I have never seen one of those, probably for a 4 stroke. In a PHBH on a 2 stroke, most use an AV atomiser for normal kits but an AS atomiser if you have something that revs a higher than the usual. 270 is way too big for a 225 MHR. I would start the jetting with an AS264 atomiser.

[Norrie Bodge]

something along these lines i`d say for a starters...

Main jet: 130- 134
Idle jet: 50 - 55
Needle: x7 - x13
Needle clip position: testing needed, start with 2nd from top
Needle Jet: av264 - av266
Slide: 40

[ducksta]

Cheers guys