Scooterotica

Hi guys just road testing a px motor but first 2nd and 3rd runs boggy won't go over 30 mph 4th only just better,
Spec. Px 125 with a Dr kit matched to casings( piston correct way round ), casing has a lml reed valve fitted t5 24/24g carb with a polini induction kit crank been alterd to suit, exhaust is a revolver.
New CDI new stator plate
Carb be3. 55/160 132 main starts first kick but just won't go any ideas

Get shot of Polini ik and use an E. Never known anyone having luck using those and in the same vein the G only seems to work properly with a T5

Got a 24/24 e carb any idea on jets etc

Not off the top of my head but you don't sound miles off on the list. Probably start about 125 on the main and see where you are.

So you think it must be carb?

I think the Polini induction kit and T5 carb are issues here,both give problems. Both together are more than likely compounding things further.

I've no experience of the lml reed valve but my T5 172 runs perfect on a 120 main, 122 with sito plus and 125 or 128 with the scorpion. Maybe a smaller main jet might be worth a try.

Juan wrote:Get shot of Polini ik and use an E. Never known anyone having luck using those and in the same vein the G only seems to work properly with a T5

I run a 24/24g carb with drilled air filter on my malossi 220 & no problems
Duksta if you do one adjustment at a time you'll sort it m8,
I'd Try a BE1 atomiser in for starts & if still boggy go down to the std T5 BE4 which is a lot leaner.
One step at a time with jetting m8 ok
& Remember to check your plug at various throttle positions

The BE3 one fitted is way richer m8 & what size air corrector you using ?

See the chart in this thread will help -> viewtopic.php?f=8&t=27378

Cheers guys will revert back to the 24/24e carb and take induction kit off, standard filter and see if it improves.

I've been told that the LML reed opening is a closer match to a 20/20 (in terms of area) than anything else... so as well as any jetting issues, there may be a bottleneck at the reed for a bigger carb and higher flow venturi.