Ski-Doo FORMULA III, Shop Manual

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Section 03 TROBLESHOOTING
Sub-Section 02 (FUEL AND OIL SYSTEMS)
03-02-2
SYMPTOM ENGINE LACKS POWER OR STALLS AT HIGH RPM.
CONDITION NORMAL USE.
Test / Inspection 1. Check fuel tank vent hose.
a. Kinked or clogged hose.
Relocate or replace.
2. Check fuel filter.
a. Clogged filter.
Replace.
3. Check fuel lines.
a. Kinked or clogged lines.
Relocate or replace.
4. Check fuel pump flow.
a. Dried diaphragm.
Replace.
5. Check if carburetor(s) is (are) clean.
a. Varnish.
Clean.
SYMPTOM HIGH INJECTION OIL CONSUMPTION.
CONDITION NORMAL USE.
Test / Inspection 1. Check oil injection pump adjustment.
a. Oil injection pump adjusted too rich.
Adjust.
2. Check injection oil lines and their fitting.
a. Leaking lines and / or cover.
Replace defective part(s).
3. Check injection pump cover gasket.
a. Worn gasket.
Replace.
4. Pressurize crankcase rotary valve gear reservoir.
a. Leaking gasket(s).
Replace gasket(s).