ICS FIELD TROUBLESHOOTING
FIVE PROBABLE CAUSES IF SAW IS REPORTED “NOT ABLE TO START” or “WON’T RUN WELL”
Diagnose in the order below:
1. AIR FILTER
IDENTIFICATION
CAUSE
FIX Remove and clean/replace air filter.
NOTES
A gradual decrease in power or loss of full throttle RPM.
The air filter is dirty and/or clogged.
1. Refer to Operator’s Manual for cleaning procedures.
2. A dirty air filter will contribute significantly to engine flooding, spark plug build-up and/or low compression failures.
2. STARTER
IDENTIFICATION
CAUSE Concrete slurry will get inside the starter housing assembly during cutting, causing the starter pawls to stick and not
FIX Remove starter assembly and clean or replace starter and lube with lightweight penetrating oil (WD40/TriFlow). For
NOTES 1. Cutting with saw in horizontal position with flywheel down accelerates slurry collection. Immediately wash starter
The starter rope pulls freely without noticeable resistance.
engage when the rope is pulled.
starter assembly repair or installation, refer to Operator’s Manual.
assembly after use in this mode.
2. Clean or replace the appropriate starter cover assembly components when you encounter a starter with a frayed
starter cord, broken rewind spring, or other mechanical damage.
TIPSHEET
3. FLOODED ENGINE
IDENTIFICATION
CAUSE Commonly caused by leaving choke on after first ignition spark. May also be caused by excess rope pulls.
FIX
Smell of fuel and/or a wet, fuel soaked spark plug after removal.
Remove spark plug and pull rope to discharge excess fuel from cylinder. Air dry spark plug or replace with correct spark plug.
4. IGNITION
IDENTIFICATION
CAUSE The spark plug is most likely dirty or contaminated. A secondary cause is an improper spark plug gap.
FIX Remove spark plug and clean or replace. Re-gap spark plug to .020 in (0.05 mm). Refer to Operator’s Manual for more
NOTES 1. Test method: Always ensure ignition switch is ON. Remove plug and connect the plug lead to a new spark plug.
No obvious fuel issues and a spark plug not showing visible spark after removal and test per method in
Note 1 below.
details. If no spark is visible or if the spark is weak (yellow in color), replace ignition system coil.
Place plug on top of cylinder to ground and crank the engine several times by pulling the recoil starter. A healthy
ignition should produce a strong blue spark.
5. LOW COMPRESSION
IDENTIFICATION
CAUSE Piston scoring/wear or stuck piston rings.
FIX Contact ICS Servicing Dealer or Factory Service Center for evaluation.
NOTES 1. If compression is checked with a compression gauge, a reading below 125 psi indicates
The starter rope pulls upwards with very little resisting force from piston. If possible, this should be verified with a
compression gauge or by an ICS Servicing Dealer (see Note 1).
piston damage. New saw compression is 130 to 160 psi.
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Eective January 1, 2022 | Copyright 2022 ICS, Oregon Tool Inc. Pricing, product oerings and specications are subject to change without notice. All rights reserved.
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