I've been lurking here a bit reading the wealth of info and wanted to get the advice of those who have gone before me prior to messing with my carb any more that the full disassembly, inspection, full passage blow through with compressed air and reassembly I just did.
Here are the important details:
04 FS450E - box stock - currently set up for supermotard, but my dirt wheels are on the way - total riding time consists of about 4 track days (I'm a total n00b), approx 6-8 hrs on the motor since new, thats it!
Current jetting specs are bone stock:
178 main jet
40 idle jet
obdvt needle
clip in 2nd position from top
85 starting jet
200 main air jet
100 idle air jet
fuel screw 2.5 turns out
Riding conditions: SF Bay area tracks and soon to be off road in the 1000-4000 ft range.
The issue(s): hard starting, seems to run fine while choked, dies immediately when taken off choke. If you maintain throttle while turning off the choke it runs but VERY poorly (backfiring, wanting to die, feels very 'surgey' when riding - almost like its running out of gas) however when it warms up it seems to run pretty well.
My suspicion is that the pilot circuit needs to be richened up a bit, I'm thinking of trying two sizes larger to start, unless I should make a bigger jump? Sounds like I would also benefit from moving to a different needle taper like the OCDVR, but that would come after getting the bike to start easily, haha.
Any guidance is most appreciated, I'm itching to get this bike set up properly!
Here are the important details:
04 FS450E - box stock - currently set up for supermotard, but my dirt wheels are on the way - total riding time consists of about 4 track days (I'm a total n00b), approx 6-8 hrs on the motor since new, thats it!
Current jetting specs are bone stock:
178 main jet
40 idle jet
obdvt needle
clip in 2nd position from top
85 starting jet
200 main air jet
100 idle air jet
fuel screw 2.5 turns out
Riding conditions: SF Bay area tracks and soon to be off road in the 1000-4000 ft range.
The issue(s): hard starting, seems to run fine while choked, dies immediately when taken off choke. If you maintain throttle while turning off the choke it runs but VERY poorly (backfiring, wanting to die, feels very 'surgey' when riding - almost like its running out of gas) however when it warms up it seems to run pretty well.
My suspicion is that the pilot circuit needs to be richened up a bit, I'm thinking of trying two sizes larger to start, unless I should make a bigger jump? Sounds like I would also benefit from moving to a different needle taper like the OCDVR, but that would come after getting the bike to start easily, haha.
Any guidance is most appreciated, I'm itching to get this bike set up properly!
