KTM 2012 250 SX-F User Manual

Troubleshooting
3
Troubleshooting: Fuel System
Problem
Possible
Cause
Solutions
Bike speeds
up too
slowly or
sputters
when
accelerating
Dirty Fuel Filter
 Replace fuel
filter (pg. 4)
Faulty Fuel
Injector
 Replace fuel
injector (pg. 7)
Bad Fuel
 Empty fuel tank
and re-fill with
new unleaded
ethanol-free
gas.
Loss of fuel
pressure/Bad
fuel pump
 Check fuel
hoses for loose
fittings and
possible leaks
 Test fuel pump
(pg.10)
ECU Issue
 Replace ECU
(pg.8)
 Take existing
ECU to KTM
dealership for
re-mapping
Engine
cranks but
does not
start
Bad fuel pump
 Check fuel
hoses for loose
fittings and
possible leaks
 Test fuel pump
(pg.10)

KTM 2012 250 SX-F Specifications

General

Engine Type	Single cylinder, 4-stroke
Displacement	249.91 cc
Starter	Electric starter
Transmission	5-speed
Cooling	Liquid cooled
Rear Suspension	WP Monoshock
Fuel Tank Capacity	7.5 liters
Compression Ratio	12.8:1
Bore x Stroke	76 mm x 54.8 mm
Fuel System	Keihin EFI
Frame	Central double-cradle type 25CrMo4 steel
Front Suspension	WP USD 48 mm
Front Brake	260 mm disc
Rear Brake	220 mm disc
Seat Height	992 mm
Ground Clearance	375 mm