Jetting needles

I have completed my timing change from WR to YZ. I now wish to purchase the EKP (5jg-14916-ep) needle. I have searched all the previous posts and internet and have not found anywhere to buy the parts in the USA except from a Yama dealer. I did see where I could get them in Oz, but is there anywhere closer?

By the way the new timing substantially motivates the mid and upper range. I didnt notice much loss on the bottom.


01 WR426, YZ timed, Grey Wire disconnected, SDG seat, YZ tank, Acerbis hanguards, Forks lowered.

SUDCO has everything you need. Cannot find the number though.


'99 WZ/YR (you choose!) with ALL YZ mods, de-octopused, DSP Doug Henry airbox w/ velocity stack, FMF PowerBomb header, Stroker SX-1 silencer, SS front brake line, OEM YZ tank, IMS YZ seat.


SUDCO does not show any parts or part numbers on thier web site. I sent them an e-mail to ask. Is there any other online source?


The needle EKP is a Yamaha only part. Sudco will carry needle EMP which is one clip position leaner (use clip #4 or 5).

The Yamaha needle is OBEKP, the OB indicates it is a hard coated needle. Cost is about $15. The Sudco needle is OCEMN, where the OC is a brass type needle. This will only cost about $8. The Yamaha needle is more durable but more costly.

Sudco- 1-800-998-3529

Carb Parts Warehouse-


If anyone is interested, I have a YZ timing kit from Baja Design for the 400. Bought it,old enough to realize I don't need it. It has all the jets, needle, and directions.


Could you post the jets you received in the kit and a briefing of the instructions? Enquiering minds want to know :)




99 WR400f, YZ timed, MX-Tech suspension, Scotts steering damper, White Bros E-Series (12 discs), tapered header and a/f. Kouba T-handle for the fuel screw. Works Connection billet throttle tube and frame guards. Cycra Pro-Bend, triple clamp mount handguards. Thumper Racing rad guards, Renthal Jimmy Button highs, YZ Tank and IMS seat, YZ number plate, odo removed, EKP, 48PJ, 175MJ at 500-1000' Thanks James Dean!

I e-mailed SUDCO and they told me they did not carry the needles. I purchased them from Yamaha for $11.00

Sudco carries the OCEM- series needles and many others that are OC type, but not the OBEJ-, OBEK-, or OBEL- needles. The OBE-- versions are only available from Yamaha.

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