Section 02
TROUBLESHOOTING
Sub-Section 02
(ENGINE)
02-02-8
8. Check carburetion.
a.Improperly adjusted or inadequate carburetor components.
Adjust according to specifications (refer to TECHNICAL DATA 09) or replace
inadequate component(s).
9. Check cylinder head gaskets.
a.Worn gaskets.
Replace.
10. Check ignition timing.
a.Ignition timing is too advanced.
Adjust according to specifications (refer to TECHNICAL DATA 09).
11. Check if there are leaks at air intake silencer and/or engine crankcase.
a.Leak(s).
Repair or replace.
12. Check condition and heat range of spark plug(s).
a.Melted spark plug tip or inadequate heat range.
Replace.
SYMPTOM
ENGINE EQUIPPED WITH “RAVE” VALVE DOES NOT REACH ITS FULL
OPERATING RPM (500 TO 1000 RPM SLOWER)
CONDITION
NORMAL USE
Test/Inspection
1. Check “RAVE” valve pistons.
a.Valve piston(s) is (are) too far out.
Screw valve piston(s) to bottom.
2. Check “RAVE” valve stems.
a.Bent “RAVE” valve stem(s).
Replace.
3. Check “RAVE” valves.
a.Jammed valve(s).
Clean.
4. Check tension of “RAVE” springs.
a.Inadequate spring tension.
Replace.
5. Check “RAVE” pressure holes.
a.Clogged holes.
Clean.
6. Check clamps or sleeves.
a.Damaged clamp(s) or sleeve(s).
Replace.
Summary of Contents for FORMULA 500 1997
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