Search found 305 matches

by paul d
Tue Aug 17, 2021 12:09 am
Forum: Vespa Tech
Topic: T5 tuning kit
Replies: 4
Views: 3272

Re: T5 tuning kit

Many have different opinions on 2 stroke oil percentage but when I was using autolube I always added 1% into the tank on my kitted T5.
by paul d
Sat Jul 24, 2021 12:55 am
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: Zundapp Bella (Bike Engine) now 500 Auto Conversion
Replies: 26
Views: 29651

Re: Zundapp Bella (Bike Engine) now 500 Auto Conversion

Wow, that's a great result! I'm looking forward to seeing it in the flesh.
by paul d
Mon Mar 29, 2021 12:44 am
Forum: Liquid Cooled, Motorcycle Engine & Automatics Section
Topic: GT300LC change of pipe performance videos
Replies: 2
Views: 5599

Re: GT300LC change of pipe performance videos

Loving the engine tone. High speed without high revs. Great work!
by paul d
Sun Dec 20, 2020 12:52 am
Forum: Vespa Tech
Topic: PX 125 Bogging down problem
Replies: 17
Views: 9270

Re: PX 125 Bogging down problem

Correct way is to follow everything I've said previously which will solve the cause. If you've no time just put in a bigger main jet. Go up one or two from whatever number is fitted already. If you don't have a bigger jet, run the bike with a dash of choke all the time. A small bit, don't push the c...
by paul d
Thu Dec 03, 2020 9:19 pm
Forum: Vespa Tech
Topic: PX 125 Bogging down problem
Replies: 17
Views: 9270

Re: PX 125 Bogging down problem

First thing I'd do is check the main jet. Carb lid off, air filter off, it's under the biggest brass screw as seen when you look down on the carb. It's a push fit into a brass tube with alot of holes. lt'll become obvious when you undo the largest screw. I'd look up the main jet size for a standard ...
by paul d
Tue Dec 01, 2020 1:00 am
Forum: Vespa Tech
Topic: PX 125 Bogging down problem
Replies: 17
Views: 9270

Re: PX 125 Bogging down problem

Have you changed anything on the scooter like a non standard exhaust? I can't remember what the main jet is for a px125. If your scooter is standard then the standard main will be perfect. If you've changed the exhaust then the main jet has to be raised. Is there any oil leaking from the head? You c...
by paul d
Tue Nov 24, 2020 12:37 am
Forum: Lambretta Tech
Topic: cht gauge
Replies: 10
Views: 8157

Re: cht gauge

The questions above have put a smile on my face and to be honest, have caused many sleepless nights for very many people including myself! Normal range for me is anything between 140c to 180c. My scoots aren't standard. 180ish when travelling slow up long hills, slow into a continuous headwind or ch...
by paul d
Sun Nov 15, 2020 4:03 am
Forum: Vespa Tech
Topic: PX 125 Bogging down problem
Replies: 17
Views: 9270

Re: PX 125 Bogging down problem

I meant to say if it creeps forward when in gear!
by paul d
Sun Nov 15, 2020 3:58 am
Forum: Vespa Tech
Topic: PX 125 Bogging down problem
Replies: 17
Views: 9270

Re: PX 125 Bogging down problem

I'd say your gearchange issue is just a lubrication thing or a clutch cable that needs tightening. The clutch is adjusted under the engine and is obvious when you see it. If the bike is creeping forwards when the clutch is pulled then the cable needs to be adjusted and thats your gearchange issue. A...
by paul d
Mon Nov 02, 2020 1:34 am
Forum: Vespa Tech
Topic: PX 125 Bogging down problem
Replies: 17
Views: 9270

Re: PX 125 Bogging down problem

You could recheck and reset your mix screw. Simple check and it'll only cost you time. The mix screw is located at the back of the carb box and is accessable from the outside. Either a long screwdriver or a 7 or 8mm socket with an extension will get you past the shock spring and get you working. Sta...