©2017 ICS - Blount Inc, Specifications subject to change without notice. REV19JUNE2017 P/N 598901
79
695XL SERVICE MANUAL
23. This section provides several flowcharts to aid diagnosing
common problems.
The engine
runs rough at all
speeds.
The engine is
overheating.
• Operator is overworking
the power cutter.
• Carburetor mixture is too
lean.
• Incorrect fuel/oil ratio.
• Flywheel fins are clogged.
• Air deflector is missing.
• Cylinder fins are clogged.
Poor acceleration.
• Dirty or clogged air filter.
• Clogged fuel filter.
• Incorrect carburetor tune.
• Plugged fuel tank
breather.
Uneven idle or
engine
may “run away”.
• Air leak at intake boot,
cylinder gasket, or
crankcase gasket.
• Faulty carburetor
diaphragm.
Diamond chain
moves at idle.
• Idle speed too high.
• Broken clutch spring.
Excessive
vibration.
• Damaged shock
absorber.
• Damaged or broken
flywheel fins.
• Bent crankshaft.
• Replace shock
absorbers.
• Replace flywheel.
• Replace crankshaft.
• Adjust idle speed.
• Replace clutch spring.
• Inspect air intake boot.
• Pressure test
crankcase.
• Replace carburetor.
• Clean or replace the air
filter.
• Replace fuel filter.
• See Carburetor Tuning
section.
• Repair or replace fuel
tank breather.
• See Operator’s Manual.
• See Carburetor Tuning
section.
• See Power Cutter
Specifications section.
• Clean flywheel fins with
wire brush.
• See Starter Cover
section.
• Clean cylinder fins.
• Dirty or clogged air filter.
• Water has been ingested.
• Loose or dirty spark plug.
• Clean or replace the air
filter.
• Inspect air intake
system for water.
• Inspect fuel system for
water.
• Tighten, clean, or
replace spark plug.
A dirty air filter is the #1 reason for engine problems.
YES
YES
YES
YES
YES
YES
23. DIAGRAMS
CHECK
POSSIBLE CAUSE
REPAIR