Cub Crafters CARBON CUB SS CC11-160, Maintenance Manual

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CUB CRAFTERS, INC.
CC11-160 MAINTENANCE MANUAL
Manual number SSC10000AMM
6.3.10
Date: 04/18/2013 Page: 3
PROBLEM PROBABLE CAUSE REMEDY
Reference
in this
manual
Rough
running -
continued… Engine mount bolts loose. Tighten. 5.2.5
Defective spark plug cables. Test for break-down at high voltage.
Worn cam lobe. Overhaul engine. 8*
NOTE
Defective valve lifter. Remove and test hydraulic unit.
Replace if worn.
7*
NOTE
Scored valve stems. Replace valves and guides. 7*
NOTE
Warped valves. Replace. Grind seats. 7*
NOTE
Detonation. Use specified fuel. Keep cylinder
head temperature below specified
maximum.
Poor
acceleration
Engine not warm enough. Continue warm-up.
Defective throttle control. Check for binding, kinks, slipping,
worn parts.
Plugged air filter. Remove and clean filter. 6.3.12
Idling mixture too lean. Readjust. 6.3.15
Idling jet plugged. Clean carburetor. 6.3.15
Water in fuel. Drain sediment trap. 6.3.15
Leak in air induction system. Check all joints and throttle shaft
bearings.
6.3.12
Low power Defective ignition cable. Test for high voltage leaks. Replace
parts.
Scored valve stems. Replace valves and guides. 7*
NOTE
Warped valves. Replace valves. Grind seats. 7*
NOTE
Throttle not fully open. Readjust linkage. 6.3.12
Carburetor air heat valve not
closing fully. Remove filter, inspect valve.
Straighten plate.
7*
NOTE
Propeller blades warped. Inspect pitch. Replace.
Ice forming on carburetor throttle
valve. Apply full carburetor air heat.
Air filter plugged. Remove and clean. 6.3.12
Fuel flow restricted. Inspect tank vents. Inspect shutoff
valve. Clean strainer. Clean
carburetor screen. Blow out fuel
supply line.
6.3.15
Worn cylinders, pistons and/or
piston rings. Overhaul engine.
8*
NOTE
Low oil
pressure Low oil supply. Replenish.
Low oil viscosity. Drain sump. Refill with correct
grade.
6.2.3
Plugged oil screen. Remove and clean. 6.3.10