Another Suzuki Needle convert thread

[NW_250RR]

So I kind of did too many things at once, but it's obvious float height affects jetting pretty good.

I did put in the RK Tek head, but while I was at it, I pulled the carb and checked the float. The float was at about 6-6.5mm so I bumped it up only about 1mm. But since I was putting in the new head, I wanted to make sure I was rich and not lean. So I left the 38 pilot (that kept fouling plugs), but put the needle back to clip 3, and put a 170 main in.

The bike runs great and might be a 'tiny' bit lean on the bottom. It sounds completely different (deeper) with the new head though. So going by sound now is a bit more difficult too.

My buddy with a 17’ 300 XC had his jetting dialed. Once he put on the RK tek head with the same jetting it ran lean and the idle would hang. I road it this way and it was very noticeable. He talked to Rk and they suggested a richer setup. It’s now running perfect. Try dropping that 40 pilot in there.

On a side note, have you checked your fork oil since having your forks anodized?!

[Goatse]

My buddy with a 17’ 300 XC had his jetting dialed. Once he put on the RK tek head with the same jetting it ran lean and the idle would hang. I road it this way and it was very noticeable. He talked to Rk and they suggested a richer setup. It’s now running perfect. Try dropping that 40 pilot in there.

On a side note, have you checked your fork oil since having your forks anodized?!

I will be ordering a 40 pilot, but with the amount of snow on the ground, I might just leave the 38 in there. By the time all this snow melts, it might be warm enough for the 38. If I can end up getting out, I might toss in the stock NOZJ since it seems it takes 1 step smaller jets. It'd be a nice comparison of the 2 needles, since it's been so long since riding the stock needle.

I haven't checked my fork oil, but I also haven't had a ton of hours on them. We've had so much snow, that the few rides I've had on them have mostly just been surviving the ride and floating on/in deep snow as is. I want to see how the 3wt shock oil in the cartridge feels before I take them apart again.

[aj_mariner]

Trying to richen up a 1/4 Throttle lean spot...took out the NEDH and trying the NECH.

[Goatse]

Got out for a ride with the new head, and left the 38/170 jets in with the NEDW #3. As with the stock head the bike was blubbery off the bottom until I opened the air screw to 3.25 turns. With 200psi compression, I don't really want to put the 35 pilot in there. So I think I'm going to toss the NEDJ needle in and see if it cleans things up as I'd like.

[aj_mariner]

Got out for a ride with the new head, and left the 38/170 jets in with the NEDW #3. As with the stock head the bike was blubbery off the bottom until I opened the air screw to 3.25 turns. With 200psi compression, I don't really want to put the 35 pilot in there. So I think I'm going to toss the NEDJ needle in and see if it cleans things up as I'd like.

Insane. I had to look back to the beginning to double check your temp and elevation. But hey, if it works good for you then fuck it...let her rip

Edit: I still think something is wrong...but am currently too lazy to put a list together

[NW_250RR]

Took my bike out yesterday for the first time since getting my suspension done. Temp was around 55, elevation 500ft. The 250rr ran super crisp and pulled hard all day. NEDH clip 3, with a 40 pilot, 170 main, AS at 1.5. 40:1 with amsoil interceptor.

[aj_mariner]

Got out today (48degF, 1000' ASL) to test the NECH at clip 3. Felt better, with a small ring of spooge and no dribble streak. There is still the slightest lean spot at 1/4 throttle. Wonder if setting my PV to 3/4 turn in from flush has anything to do with this.
Still: Motul 800T (50:1), 40pj, AS 1.5 turns out, 172mj.

[Matt4426]

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Quick question: The suzuki needle chart is shown lean to rich, top to bottom. Is there a "half clip" difference from needle to needle? Ex. the NECJ on clip 3 is a "half clip" leaner than the NEDJ on clip 3 ? I am running the NECJ on clip 3 and it is fairly rich and gurgles down low. Should my next move be NEDK on clip 3 or NEDJ on clip 2?

[aj_mariner]

According to the Suzuki chart, you would be right. NECJ is half clip leaner than NEDH. Buuuut....read the Keihin chart for PWK needles, then the opposite is true.

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As for the gurgle down low with a clean air filter, your looking at air screw adjustment (should be between 1 to 2 turns out from closed. Fully closed should stall the engine), smaller pilot jet, then larger needle diameter.

[Goatse]

Got out for the first warm ride (and on tires without studs) in quite a while. Had to travel 13 hours to do it as well.

Anyway, since it was a completely different elevation than I ride, I didn't want to mess around and went with stock jetting as per the chart.

My bike hasn't run so well in ages. I'll be sticking with the stock NOZJ needle and the Beta jetting chart. Even with the RK head, their chart is spot on. I actually quite like the stock Beta needle now after switching back.