Gori 200 jetting problems
Posted: Tue May 01, 2018 1:20 pm
I'm having problems jetting my mildly tuned li150 - series 3.
Looking to keep it original in appearance, but increase the performance for modern traffic, I've fitted a Gori200 sport, casatronic kit and BGM clubman.
I also increased the sh18 to an sh20 that came off a friend's sx200. I then fitted the BGM metal mash airfilter.
I was expecting to use main 118-125 but the best jetting combination is a surprising idle 50, choke 50 , main 102, atomiser 5899-2 It feels just right on short runs up and down the road but the numbers don't seem right. Anything above the 102 and it bogs/judders when moving off of idle.
With the airfilter removed completely it runs well with a 115, but I'm not keen on riding without an airfilter. Even if I use the BGM filter with a drilled airbox, I think it will only move me up to 108/110 main. Still seems too small...will this risk seizures/holed piston??
I'm new to Lambrettas, but assumed that even mild tuning would need up jetting from the from the original sh18 (105, 45), not down??
Can I have installed something incorrectly or have I missed something obvious? Any advice is appreciated as I'm lost at what to try next...
Looking to keep it original in appearance, but increase the performance for modern traffic, I've fitted a Gori200 sport, casatronic kit and BGM clubman.
I also increased the sh18 to an sh20 that came off a friend's sx200. I then fitted the BGM metal mash airfilter.
I was expecting to use main 118-125 but the best jetting combination is a surprising idle 50, choke 50 , main 102, atomiser 5899-2 It feels just right on short runs up and down the road but the numbers don't seem right. Anything above the 102 and it bogs/judders when moving off of idle.
With the airfilter removed completely it runs well with a 115, but I'm not keen on riding without an airfilter. Even if I use the BGM filter with a drilled airbox, I think it will only move me up to 108/110 main. Still seems too small...will this risk seizures/holed piston??
I'm new to Lambrettas, but assumed that even mild tuning would need up jetting from the from the original sh18 (105, 45), not down??
Can I have installed something incorrectly or have I missed something obvious? Any advice is appreciated as I'm lost at what to try next...