Malossi (Dellorto) 19 PHBG Carb on a Vespa ET2
Post Reply    Forum -> General Discussion
Author Message
Enthusiast
2009 S150, 2017 GTS300Super, 2006 GT200
Joined: 18 Oct 2014
Posts: 53
Location: Houston
Mon Jun 10, 2019 2:06 pm quote
So a friend dropped of his 50cc ET2 along with a box of new parts and asked if I could install the parts and get the bike running again. Iíve already installed the new 70cc cylinder and piston, now itís time for the carburetor and boy does it have me stumped.

The ET2 has a single cable coming from the throttle that runs to a splitter under the floorboard. Inside the splitter is a little gizmo that the cable from the throttle terminates and the individual cables that lead to the carburetor and oiling system are attached.

Problem is now with everything reconnected I donít seem to have enough cable length. Iím shy about 2-3 cm. Iíve got the screw-in adjuster all the way in on the carb end, thatís the only place I could get any extra length.

Has anyone ever done this mod? Info on the web has been really scarce. I found a bunch about the actual tuning once I get the carb on but no real live info on how to actually install it.
Sponsor
Granturismo 218
Joined: 04 Feb 2013
Posts: 5131
Location: South Carolina
Mon Jun 10, 2019 9:26 pm quote
You need this

https://scooterpartsco.com/et2/et2-air-and-fuel/throttle-cable-junction-box-to-carburetor-vespa-et2

The stock cable from the junction to the carburetor is too short for a DellOrto carb.
Enthusiast
2009 S150, 2017 GTS300Super, 2006 GT200
Joined: 18 Oct 2014
Posts: 53
Location: Houston
Tue Jun 11, 2019 4:33 am quote
Dang it youíve saved my @$$ again. Thank you sir. Order has been placed. I may finish this project after all!!
Hooked
GTS 250ie Super, BV250, Italjet Velocifero, Scarabeo 150, S50,ET4
Joined: 22 Nov 2016
Posts: 338
Location: Winston-Salem, NC
Thu Jun 13, 2019 5:58 pm quote
Motovista is a champ again.
Enthusiast
2009 S150, 2017 GTS300Super, 2006 GT200
Joined: 18 Oct 2014
Posts: 53
Location: Houston
Thu Jun 13, 2019 6:16 pm quote
Cable came today so I installed it. Such a tiny difference made everything better. Now to dismantle the oiling system since the carb has no provisions for it, mix up some pre-mix petrol, and start testing jets.
Enthusiast
2009 S150, 2017 GTS300Super, 2006 GT200
Joined: 18 Oct 2014
Posts: 53
Location: Houston
Fri Jun 14, 2019 7:52 pm quote
So tomorrow Iíll get started trying to tune this thing. I intend to follow a process I found posted on some board by a guy called Hyabusa almost 10 years ago. There is truly a scarcity of info out there. But this seems pretty complete.

I donít have a stock airbox, my friend had already lost that but told me to buy one if I needed to. He supplied me with a Malossi pod air filter. I have 8 jets ranging from 90 to 110. Iíve raised the needle in the carb one notch, Iíve got the choke installed, Iíve dismantled the oiling system, and Iíve mixed up some gas.

I plan to start with the 110 and then move down in jet sizes until it runs good. Iíve got a bunch of new spark plugs to check the burn color. Iíll have the old filter on. Questions I have are about the exhaust which Iím reading needs to be derestricted but I do not have the extra deadens pipe on the exhaust I see pictured in the posts Iíve found. Iím also wondering if Iíll benefit from a new intake manifold. I see one on ScooterPartsCo that fits 19-23 sized carbs. Do I need it? Should I find a stock airbox and use it?
Team Scooter Trash for Petfinder Foundation   vespa scooterwest scooter west Motorsport Scooters   Cool Ass scooter seat cover
Post Reply    Forum -> General Discussion
[ Time: 0.2503s ][ Queries: 23 (0.0632s) ][ Debug on ]