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PWK28s for RZ

Started by 2steve, April 07, 2026, 02:08:39 PM

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2steve

#30
Quote from: m in sc link=msg=63132fwiw, im getting my pwks back Sunday, i can look at where the jetting is for the rz and relay it. 0.02

Did you get jetting from Josh's carbs?

Waiting for the #25 and #30 drill bits to come in to make the final moves.

m in sc

herm did not actually. forgot them

2steve

It escapes me how best/easiest to prime the oil lines to the carbs. Pull pump with tubes dangling and turn with a drill? Any tips?

Mark, I dropped in JJH needles middle position, 150 mains and 40 pilots.
It's always nice to collect a sticker from Jets-R-Us in the current color.

Used a #30 drill for the RD400 repop oil fittings. They measure 0.129" at the brass tube and the drill is 0.1285. Wiped some sealant on them leaving the brass tube clean and "gently" tapped them in because they are mostly plastic. Probably not budging because of the interference fit.

This little exercise saves me $350-$400 over a complete kit as long as I don't ruin anything.

m in sc

#33
itll be fine. just keep an eye on it. im pretty sure we ran Josh's 1 lean on the needle. as farcas priming the lines,  juat pull the oil pump cable wide open on startup.  itll get to throttle cyls fast. no worries

mnein

What Mark said about pulling the pump cable wide open. Sounds like you're getting closer to PWK bliss.

2steve

PWK's are on. Some oil in the lines. Cable finagled out of 2 angled Banshee carb cables that came with the Sudco carbs, oil leg that came with the busted CMSNL cable and the splitter housing tie wrapped tightly so it will stay together normally. Fuel lines run. Waiting on finishing later with the UNIs. Synched up. Not started yet.

I'll probably start it and fill the lines tonight or tomorrow. My hands are worn out. You guys didn't warn me that the PWK slide springs are too much to handle without creative tool usage.

The throttle snap back is amazing though.

Mark, I took your hint and dropped the needle one step. Really hope I don't have to go back in and change it  :shocked:


pdxjim

Hemostats will help with the springs.
Wasting time on 2T forums since the dawn of the internet. '89 TDR250, '23 300xcw, '24 Street Triple RS, '56 Porsche 356A, '88 325is '89 560SL. Too many toys.

m in sc

squeeze the spring down w your index and middle finger w the cable between them, and the carb dop w your ring finger and thumb. easy peasy.  :twocents:

2steve

That spring is strong and skinny and squirrely. Mikunis are a cake walk. I couldn't make it go that way. Used 90 degree needle nose plus straight needle nose while hands were cramping.
Rode it and the main is close enough at 150. A little burbly down low, so turning out the air screw for the next ride.

Cable is a little too long, so I'll fiddle with it.

Would be nice to have an extension with a split in it.
Hmmm, maybe a clutch cable adjuster?

m in sc

you can get longer adjusters or double stack them. im aware of the springs, next time i see you ill show you the way to do it. the tms are the same way

2steve

I maxed out the adjustment at the throttle housing to two threads left. It's just enough.

One more shakedown to see if the pilots need to drop down a size.

The metallic thunk when the slides hit bottom is satisfying.