LCGB Forums

Hi guys

Can anyone tell me what the dimensions are front to back of a 25mm PHBL and the same for a 28/30mm PHBH are please

Both would be rubber mount types and the dimension without the bell mouths fitted please

According to Scooter Center catalogue, both are 90mm. I assume this is without a bellmouth.

Thanks Storkfoot

I didn’t realise they had dimensions

Odd though as when I just looked it shows the phbl as 90mm and the phbh as 96.3 mm ?

be careful also of the distance between the centre of the venturi & the bottom of the float chamber
it can sit on your cowling

Phbl25 89.93mm
Phbh26 89.84mm
Phbh30 90.27mm
Not that much in it really

Hi ULC Soulagent, can you re-check the above, as I've just measured my 3 x types & get
PHBH 26 & 28mm approx. 68mm from venture (choke) to underside of main jet holder &
PHBL 30mm approx. 75mm from venture to underside of main jet holder

a 26/28mm just fits in a filter box c/w air hose & the main jet holder rests on the head cowling

hullygully wrote:Hi ULC Soulagent, can you re-check the above, as I've just measured my 3 x types & get
PHBH 26 & 28mm approx. 68mm from venture (choke) to underside of main jet holder &
PHBL 30mm approx. 75mm from venture to underside of main jet holder

a 26/28mm just fits in a filter box c/w air hose & the main jet holder rests on the head cowling

Hi HG,
Measurement are from center of Venturi to the bottom of the main jet holder

ULC Soulagent wrote:

hullygully wrote:Hi ULC Soulagent, can you re-check the above, as I've just measured my 3 x types & get
PHBH 26 & 28mm approx. 68mm from venture (choke) to underside of main jet holder &
PHBL 30mm approx. 75mm from venture to underside of main jet holder

a 26/28mm just fits in a filter box c/w air hose & the main jet holder rests on the head cowling

Hi HG,
Measurement are from center of Venturi to the bottom of the main jet holder

Hi ULC Soulagent, I've re-checked my verniered dims with an engineers steel rule & I'm afraid your dims aren't correct

hullygully wrote:

ULC Soulagent wrote:

hullygully wrote:Hi ULC Soulagent, can you re-check the above, as I've just measured my 3 x types & get
PHBH 26 & 28mm approx. 68mm from venture (choke) to underside of main jet holder &
PHBL 30mm approx. 75mm from venture to underside of main jet holder

a 26/28mm just fits in a filter box c/w air hose & the main jet holder rests on the head cowling

Hi HG,
Measurement are from center of Venturi to the bottom of the main jet holder

Hi ULC Soulagent, I've re-checked my verniered dims with an engineers steel rule & I'm afraid your dims aren't correct

Oh dear