phreerider
Senior Member
- Messages
- 1,111
looking at the stock setup on the XB 30.5 cc , carb/pipe combo
here's a thought...by listening to it, looking inside it, and the carb backpush of fuel. It SEEMS too much back pressure..making carb adjustments futile and unstable through power band unless dialed very lean. at reasonable rich setting it just won't take it. adding MORE air in the mix from the low end helps but still drowning from its on tight exhaust, anyway.
the arrestor/baffle thing. i'm gonna put MORE holes in it..try to get it breathe better. maybe one 1/2" in the center or 1/4" x 2. or until resonance and snappy flow is found.
and if not, some new pipe and some walbro help will rescue the lame hardware, but in the meantime. custom is the only way to go.
pipes for this thing of decent build are not so common but the ghost for baja SS at kingmotors is a fair design Al alloy is a fail for sure. this has to be a common issue though , right?
here's a thought...by listening to it, looking inside it, and the carb backpush of fuel. It SEEMS too much back pressure..making carb adjustments futile and unstable through power band unless dialed very lean. at reasonable rich setting it just won't take it. adding MORE air in the mix from the low end helps but still drowning from its on tight exhaust, anyway.
the arrestor/baffle thing. i'm gonna put MORE holes in it..try to get it breathe better. maybe one 1/2" in the center or 1/4" x 2. or until resonance and snappy flow is found.
and if not, some new pipe and some walbro help will rescue the lame hardware, but in the meantime. custom is the only way to go.
pipes for this thing of decent build are not so common but the ghost for baja SS at kingmotors is a fair design Al alloy is a fail for sure. this has to be a common issue though , right?