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Compared to the 4 slide I cut myself, its slightly leaner and a little bit of a bog on fast throttle openings. Comparing the 4 slide with a 5 slide, the 5 has a larger opening all the way across the cutout arch. Thus, my 4 slide I cut myself with a taper or blend isn't as lean on total opening compared to the oem 5 slide.
Most recently, my riding has been out on the trials, 50 to 60F Temps, today I went back to my cut 4 slide that was slightly rich with the 74 needle and tried the 75 needle and its really crisp and runs excellent now.
Hoping to head to the mx track and see how it now runs with the shorty silencer instead of the big, long fmf spark arrestor.
With the sparky, I am getting a little spooge but I think its more on the fuel and silencer design rather than jetting.
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Looking forward to running the shorty at mx track
Most people are running oem needles
Thanks !
I was quick to get it close as the slide cutting I had previously done in 2016, when I got a new 2017 TC250 and everyone else was saying it was a reed cage issue...the stock slide is 4 and too rich...
2018 sx150
490 main
74 needle position 2
S4 NOZZLE
32.5 pilot
Maybe 4.5 slide, a filed 4 slide but not filed as big as a oem 5 slide
Fmf fatty
Pc shorty
40.1 leaded pump fuel.
Crisp, fast and clean!!!!
Gonna test the stic again now
It was good to ride moto on the bike, with a shorty silencer and the designed type of riding for the bike is the proper test imo.
No notch in the slide.
Oem proper 5 slide too lean with this setting.
Really pleased, but STIC is now on the bike and looking forward to seeing if I can get it dialed now
I'll update this thread with the results on the #5 slide.
Pit Row
The lectron doesn't run as well as the mikuni now I've got it dialed in. The mikuni is a great carb imo, sadly let down with stock jetting.
This weekend, I finally dialed in my pwk with the stic, both at the trails and mx track. The bike runs mega, the stic once dialed blows everything out of the water for power... amazing for mx application. We are talking 4th gear roll on power wheelies. It flat out rips.
Plus, it uses standard bolts not metric and has the choke on the wrong side and you need to good around with new cable and air boot to make it fit. Meh.
For smoother power delivery I plan to move from a 13/50 sprocket set to a 13/52 set.
I run CarbonTech Reeds in my stock reed block. They sound completely different than the stock reeds. The CarbonTech reeds seem to make more power. Hindsight being 50/50 I would have gone with the V-Force. I think the V-Force seals better than the stock reed block.
I also run an RK head insert to boost compression. The head is set to run on premium pump gas. The insert gives me more umph down low and more HP.
Keep in mind that I ride very tight and very technical single track about 80% of the time. I need a broad power delivery from low rpm torque going over boulders to screaming high rpm down straights. And I need really great throttle control for dribbling through whoops.
The Lectron throttle spring force was too firm for me. I cut four loops out of the spring to reduce wrist fatigue. It really helped.
I set mine from the Factory Setting minus the 3,75 (according to owners Manual) Turns in but i think it’s still Running lean
Just while deceleratio when it comes from high RPM to Idle it makes this “running out of fuel Noise “
114a tube
50 pilot
205 main
Red needle 3rd
6.5 slide
Air screw 3.5
The slide is really important, really struggled with the stock 7 slide that comes with the oem pwk 2016 carb
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