helicopterjim
Hero member
- Location
- near Lone Butte, BC, Canada
Rob said:
Yes and no. Recommended to get you home ........ but also indicative of needles getting old ........ and you can't replace them with a rock.
Carb pissing fuel, side of road
- Thread starter cbertozz
- Start date
Yes and no. Recommended to get you home ........ but also indicative of needles getting old ........ and you can't replace them with a rock.
Dellortoman
Hero member
- Location
- Tasmania, Australia
Legs said:
Well, no actually. Dellorto PHF carbs fitted to Laverdas just have a little open vent on the side of the carb. There's a vertical gallery cast into the side of the carb body. It is drilled straight up from the roof of the float bowl and it has a little projection above the opening to stop lumps of crap falling into it. See picture below. There's no fitting for a hose unless you modify the carb.
Attachments
breganzane
Hero member
- Location
- NSW Australia
Dellortoman said:
Later PHF's used on RGS's have ports and tubes, so Legs was right for his bike at least. But you're right in that the 180 in question likely does not. Rob is absolutely right in that the normal way for this to occur is after the bowls have been drained and the float sticks down and needs a calibrated whack. Everybody's right....
The only time I've experienced this happening during riding was on the racebike which had no filters in the tank and a bit of crud got stuck on the float seat. That said, there have more recently been problems with the float valves and white floats sold by Dellorto these days have there not?
Dellortoman
Hero member
- Location
- Tasmania, Australia
breganzane said:Everybody's right....
Surely that calls for a bit of mutual back slapping. We should all feel warm and fuzzy.
My RGS has tubes on the breathers, but it has Mikunis. There's a set of Dells in a box somewhere that came with the engine, but I've not looked very closely at them. I just presumed they were the same.
L
Legs
Guest
Phew! vindicated 
. As mentioned, the three tubes on my RGS run down into a larger diameter tube that vents under the swing arm. Early in the peace one of the tubes got a bit warm against the collector and melted. Took a while to find out why one of the carbies was overflowing, hence my comment about the tube being blocked.
. As mentioned, the three tubes on my RGS run down into a larger diameter tube that vents under the swing arm. Early in the peace one of the tubes got a bit warm against the collector and melted. Took a while to find out why one of the carbies was overflowing, hence my comment about the tube being blocked.
Dellortoman
Hero member
- Location
- Tasmania, Australia
Legs said:
Was that shortly after WW2?
L
Legs
Guest
As close as dammit 
hooksey
Hero member
- Location
- Vic , Australia
Well my 81 Jota phf 32's has brass nipple and breather hose's off each carb, down to top of crankcase !Dellortoman said:
Must be special 8)
CLEMTOG
Hero member
I would say that the ethanol in the fuel has affected the float tips in the carbs,
get some new float valves and seats from your Dellorrto man, the new ones are "said" to be ethanol proof. While you are at it, go up to 300 size (250 standard) cant do any harm and very often does lots of good.
CLEM
get some new float valves and seats from your Dellorrto man, the new ones are "said" to be ethanol proof. While you are at it, go up to 300 size (250 standard) cant do any harm and very often does lots of good.
CLEM
G
Grant
Guest
I think all the 1981 onwards rubber-mounted PHF32s had overflow tubes.
Part of the redesign to carb bodies to be rubber mounted.
Part of the redesign to carb bodies to be rubber mounted.