KTM 250 EXC RACING Owner's Manual page 76

Dpt.:
Customer Service
Subject: carburetor retrofit action
Model: 250 EXC Racing 4stroke 2002 model series
Countries: all
To improve throttle response at low RPM's, the following carburetor retrofit-procedure,
including changes of setting is recommended.
a) Replace diaphragm for accelerator pump with the new part no. 590 31 057 000
b) If the carburetor is still equipped with coil spring 590 31 059 000 (silver coated), that spring
has to be replaced by coil spring part no. 590 31 059 100 (yellow coated).
Silver coated coil springs have been mounted in limited quantities when production has
started.
c) Mount jet needle OBEVR, part no. 590 31 134 0VR 3rd position from top. This needle has
been fitted in power restricted versions to meet homologation requirements.
d) Main jet 160, art. no. 545 31 623 160 (carburetor original equipped).
d) Pilot jet 48, part no. 590 31 607 48 (included in de-restriction kit).
e) Mixture adjusting screw 1
Please place your parts-order at KTM spareparts center.
When issuing a warranty claim, parts and 30 minutes labor-time will be credited.
T.Stöcklmeier
Sales
F. Haslinger
Customer Service
A - 5 2 3 0 M a t t i g h o f e n , S t a l l h o f n e r s t r . 3 - P o s t f a c h 9 1 - A u s t r i a - Tel. 07742 / 6000-266 -
DVR 0710946 - FN 116267 g
No.: 0206/31/01-E
1/4
turn open.
Fax 07742 / 6000-301
Landesgericht Ried
FH
E.Sellmaier
Quality Assurance
W. Felber
R & D
- UID-Nr. ATU 21646501
24.06.2002