Can I ditch the fuel drinker

[camel]

what about MBs filter?
isnt spit back due to bad porting timings?

maybe on piston port...not on a reed valve set up

[Timbo]

Have you thought of this....http://www.lambrettaspares.com/spares/a ... b0807.html

......I've got one you can have for a lady including postage...

[Muttley McLadd]

Was set up by chisel speed with dyno by previous owner . They rebuilt it

And what have they advised?

[tarmac templar]

all lambretta engines have a degree of spit back ..its more noticeable on an open mouth .and can cause poor starting on a filter set up..smaller carb will make little difference...reed valves in my opinion don't prevent spit back .its a two stroke fact of life .as is s**t mpg ,once you ask scotty for warp speed

[Elite-225]

Cake & eat it ! .. you cant always both .. Leave it alone eh, its bound to be thirsty !!

[coaster]

You shouldn't be getting serious spit back with a reed set up, have you had the reeds out to check they aren't damaged?

[corrado]

Never had much luck with a PHBH30mm on my Imola, even had it set up on a dyno but it still had a lot of spit back and they weren't able to cure the rich mid-range. I changed to a Mikuni TMX27 and got less spit back, more power and more mpg. I think I ran it open mouthed and had a scootrs exhaust with 5.4 gearing.

[soullad]

check ring gap