Search found 14 matches

by scandical
Tue May 22, 2018 6:00 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Thanks for the good advice Adam. The Gori seems to be working well at idle and when accelerating through the gears (not got anywhere near WOT yet mind). The Jetex24 now has a 125 MJ, 48 idle and 5899-2 set up. I fitted a self made (3D printed) mesh grit filter too - the BGM filter was still too rest...
by scandical
Sun May 20, 2018 9:55 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Cheers Adam, I'll look up the scootering article. Today a pal dropped off a Jetex 24 to try out. It came with a 48 idle, and 135 main, and I fitted a 5899-2 atomiser. It was hard to start but ran okay for about 20mins doing about 40mph, when it started performing strangely when I was off the throttl...
by scandical
Sat May 19, 2018 7:25 am
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Thanks again for the advice. I also had similar thoughts about being lean at WOT and too rich lower down. The temp gauge is a good idea but I'm trying to keep the scooter original looking as much as possible. lambretta.co.uk suggest that if the scooter splutters off of throttle and clears, that it m...
by scandical
Thu May 17, 2018 8:53 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

A short update; having bought numerous jets and tested different combinations, I still find that my Gori 200 runs best with a 50 idle jet and a tiny 100 main - when running the BGM filter. When I remove the air filter completely, it runs smooth and pulls well. Even with no filter but running through...
by scandical
Sun May 06, 2018 8:04 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

I haven't check the squish yet.

Thanks for the suggestion. I'm looking for about 1.5mm, right?
by scandical
Wed May 02, 2018 7:08 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Just been out and reset the ignition timing to 23* and swapped the 5899-2 for a leaner 5899-1. This seemed to have some effect as it now runs okay with a 118 main (still a slight judder). Andy from Gori also replied and said not to worry about the settings as long as the plug colour is good. He said...
by scandical
Wed May 02, 2018 4:20 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Like I said, I'm new to Lambrettas so hopefully I haven't made some school boy error during the rebuild. I've written directly to Gori asking for ball park jetting figures, but am waiting on a reply. They were helpful before I bought the kit, so hopefully they give me some after sales advice. If I c...
by scandical
Wed May 02, 2018 3:35 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Interesting to hear that you have the same kit with a stock pipe Grumpy, and yet are still running a bigger main jet. What atomiser do you have fitted? To be honest, apart from shooting up and down my road to feel how each jet combination works, I haven't done any driving, so the plug colour probabl...
by scandical
Tue May 01, 2018 8:18 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Thanks for the replies. Problem is that I live out in Finland. The scene here is smaller than tiny, so there are no scooter dealers/dynos to help. I had a Jetex 22 on the shelf and tried that today. Same results though. Bogging was probably the wrong word, I would actually describe it as spluttering...
by scandical
Tue May 01, 2018 1:33 pm
Forum: Lambretta Tech
Topic: Gori 200 jetting problems
Replies: 29
Views: 10330

Re: Gori 200 jetting problems

Forgot to say, ignition timing set to 24*