Px poor running

[ducksta]

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

[Juan]

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

[ducksta]

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

[Juan]

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.

[ducksta]

So you think it must be carb?

[Juan]

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

[paul d]

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.

[Norrie Bodge]

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

[ducksta]

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

[Ginch]

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.