Does anyone know the jet sizes, slide cutaway etc that best suit a 199c trials cub fitted with a Del-Orto carb.

PVL ignition will be fitted what is the best timing position to start with.

Can't help you with the Dellorto but concerning the PVL my Cub runs perfectly with the marks aligned and the piston 3 mm btdc

Regards,

Ferry

if youur buying the carb new they will set it up for you if you ask..

thanks fellas, I am geting the correct one ? for the Cub but wondered if anyone had made any changes to the standard set up

I suppose there will be differences due to air cleaner and exhaust etc that is what prompted me to ask

What grade of plug are you using with the PVL/Del-Orto set up on a 199cc Cub

ngk bpr4 you can run with a six but the 4 seems that smidge better

Totalshell, does the NGK 4 give any benefit when opening up from tickover over the 6? Also I have found Champion more robust in the past than NGK any thoughts on that?

ngk bpr4 you can run with a six but the 4 seems that smidge better

I run a B4HS with no probs at all. Sounds like yours is a resistor type with that R in the no. Not sure they are ideally suited if you run a PVL .

ive checked this am and i normally use bpr4hs i do have bp6hs which i use when i run out i bought the lot from an auto jumble cheap i 'believe it runs a 'little better with the 4

I've fitted a PHBL 22mm Delorto to my cub with jetting to suit a 200cc Lambretta, converted it to a flipover choke, starts easy and ticks over sweetly and picks up really well, much better than when i put the new 22mm amal on.