BOMBARDIER ski-doo Tundra Scandic 2004 Series, Shop Manual

Page: 216 / 427

Section 04 ENGINE
Subsection 11 (CARBURETOR AND FUEL PUMP)
04-11-12
MMR2004-120_04_11A.FM
FUEL PUMP
REMOVAL
Install a hose pincer (P/N 295 000 076) on fuel sup-
ply line close to pump inlet.
Disconnect fuel outlet line(s).
Disconnect impulse line.
Remove screws securing fuel pump.
PUMP VERIFICATION
Check fuel pump valves operation as follows:
Connect a clean plastic tubing to the inlet nipple
and alternately apply pressure and vacuum with
pump of leak test kit. The inlet valve should re-
lease with pressure and hold under vacuum.
Repeat the same procedure at the outlet nipple.
This time the outlet valve should hold with pres-
sure and release under vacuum.
NOTE: On model fitted with 2 outlets, plug 1 out-
let with finger while checking outlet valve.
To check impulse diaphragm and gasket on high-
supply fuel pump equipped with twin outlets, pro-
ceed as follows:
Connect a clean plastic tubing to the impulse nipple
and plug vent hole on top cover. Either apply pres-
sure or vacuum using the pump (P/N 529 021 800)
from the engine leak tester kit. The diaphragm/
gasket must not leak.
CLEANING AND INSPECTION
The entire pump should be cleaned with general
purpose solvent before disassembly.
Fuel pump components should be cleaned in gen-
eral purpose solvent and dried with compressed air.
Inspect diaphragm. The pumping area should be
free of holes, tears or imperfections. Replace as
needed.
High-supply pump with twin outlets: Thoroughly
clean filter on top cover. Replace pump if too dirty.
INSTALLATION
To install, inverse removal procedure.
A01B2JA
295 000 076

WARNING
Solvent with a low flash point such as gaso-
line, naphtha, benzol, etc., should not be used
as each is flammable and explosive.

WARNING
Pressure test to ensure there is no leak in fuel
system.