LATEST RACING NEWS   THOUGHTS and OPINIONS   ARTICLES and STUFF
RACING FRIENDS   RACE TRACKS   PARTS WANTED
MY TZ250   MY R5 350   MY TZR250   THE OW600 PROJECT   50cc BIKES   MY SRX600   MY RZ500

MY FIRST SEASON IN 2007   THE CURRENT 2008 SEASON   PLANNED UPGRADES FOR 2009   2010 POSSIBLITIES
OEM SPECIFICATIONS   FRAME ALTERATIONS   SUSPENSION UPGRADES   BRAKE CHANGES   RACING BODYWORK
MOTOR MODIFICATIONS   CARBURATION CHALLENGES   IGNITION IMPROVMENTS   EXHAUST OPTIONS

tzr250 general specifications page 1 tzr250 general specifications page 2

General specifications for the 1KT/2MA TZR250.

tzr250 maintenance specifications page 1 tzr250 maintenance specifications page 2

Maintenance specifications for the 1KT/2MA TZR250.


Here are the specifications and jet sizes for the stock 28mm carbs.

carburator body
main jet
needle jet
jet needle
pilot jet
air correction jet
air jet vent
power jet
Mikuni TM28SS
230 hex
Q-2, series 505
5L19, clip position 2
20, bleed type
1.5 press in jet
open with hose
60


F3 kit available from Yamaha in 1989

I've dug up most of the info on the F3 racing kit that was available back in the late 80's. It's no longer available, which is too bad, I heard it worked very well.


MY FIRST SEASON IN 2007   THE CURRENT 2008 SEASON   PLANNED UPGRADES FOR 2009   2010 POSSIBLITIES
OEM SPECIFICATIONS   FRAME ALTERATIONS   SUSPENSION UPGRADES   BRAKE CHANGES   RACING BODYWORK
MOTOR MODIFICATIONS   CARBURATION CHALLENGES   IGNITION IMPROVMENTS   EXHAUST OPTIONS


LATEST RACING NEWS   THOUGHTS and OPINIONS   ARTICLES and STUFF
RACING FRIENDS   RACE TRACKS   PARTS WANTED
MY TZ250   MY R5 350   MY TZR250   THE OW600 PROJECT   50cc BIKES   MY SRX600   MY RZ500

CONTACT ME AT TIMOTHY@NAUGHTYBOYMOTORRACING.COM