Reply To: Carburetor GV 125 Year 2012
Hi Max, my GV is 2010, when I got it she was running very poorly so after checking all the electrical side of things I decided to take the carb’s off to clean that’s when I checked the number of turns on the fuel screw so those were the factory settings before I did anything.
I adjusted the needle/slider mode before I changed the main jets, it did cure the problem I had with a flat spot around 5k rpm.
I then decided to go with the larger main jets as per Marcel’s suggestions 90 front 92.5 rear with the same needles, this made the biggest difference, where I live is quite hilly and the bike would struggle but after changing the main jets it was a completely different bike.
I will probably adjust the needles just to tweak it, I still feel there is a bit more to be had from her but happy the way she is performing at present. Just for example I have been away for the last four months and when I came back the bike started on the second push of the button.
I think the next best mod I can do is the 520 chain and sprocket kit from Marcel from all I have read it’s a big improvement over stock, and as I said it’s quite hilly where I live so the 520 kit would certainly help.