keuk

what carburetor do you use ? It might work on the setup above but for bigger VHST or PHB 24er carbs with aluminium AF manifold it won't fit as the carburetor will be closer from the frame. The airfilter on the picture is the following one: https://www.scooter-center.com/fr/filtre-a-air-marchald-power-double-layer-oe-85x65mm-oe-connexion-28-32-36-39-43mm-rouge-7671196?number=7671196

160GT manifold 160GT, for 24mm carburetors. Reinforced PA12, airtight, fuel resistant. 55€ + 10€ shipping to Germany ,

Street tests soon

But you can use the crazy monkey development part.

I'am looking at an affordable way to produce them. Maybe SLA printing. Resin is too expansive for this single part.

Any news regarding the FALC casings ?

Shb optimized flow ! It works great!

Absolutely

You can use a bgm or stage6 idle screw. they are supposed to fit on phbg and vhst, however on Vhst I had to change the small washer inside the idle hole because its inner diameter was too tight for the BGM screw. You can also adjust the original washer.

Alright, intakes to fit 24er carbs arrived yesterday ! Only one left ! Someone interested ?

By my side I haven’t struggled with the dellorto carburetor yet. However soon or later I will have to, as the series is almost ready ! Yeah !

Step by step then.

New 62mm piston received, back to the 128° for intake About the timings. Do you have this machining mark in the transfert port ? If I use the line of the red arrow, I have 120/150 with a 0,5mm gasket. As the machining mark is not that deep I wonder if the 120 are really accurate. As Alex suggest, I will increase the exhaust height to reach 160° to increase the blowdown, do I enlarge the flange to 62% instead of 50% too?

I got it ! Thanks that is clear. By the way, my guy has updated the corebox and the pattern and should be ready to launch new models of the manifold on saturday .

What is the recommended squich on the 160GT ? What is the 0,8mm Rüstand Alex was talking about ?

Or the full kit: https://www.vespacenter.es/tienda/carburacion/carburadores-componentes/kit-carburacion-125-150-160-goma-directa-con-filtro-phbg19ds-detalle

Yes they sale parts like that on the spanish websites: I made printed parts too to fit on the original manifold. But we are still struggling with the overhangs on the printing process resulting in bad surfaces

Or https://www.leboncoin.fr/vi/1607207019.htm

This guy has probably the part: https://www.milanuncios.com/motos-clasicas/ducati-dellorto-207314789.htm Or this guy: https://www.milanuncios.com/motos-clasicas/dellorto-ub-ua-ma-me-263328703.htm By my side I think I will test another new piston, I have 142 inlet and 0,5 gasket and already at 120 for transfert port. I would like to figure put how it works first with near original diagrams before I try to improve something

It's a pity to modify the original casings, furthermore you will have to change or modify the crankshaft. What about a M1X ?

About the reed valve I had this in mind too, but I didn't go further than a PLA prototype.

I thought I would have lowered them a little bit increasing the barrel diameter to 62. What is Rückstand ?

Do you guys also have this timings on the original barrel ?