Waterax MARK-3 Owner's Manual page 16

Engine Does Not Start, Runs Irregularly or Misses
Fuel Supply Tank
Empty
Fuel Supply Valve
Closed
Air Vent on Fuel Tank
Closed
Defective Fuel Supply
Hose
Dirty Fuel Strainer
Screen
Leak in Fuel Supply
System
Fuel Mixture Too Rich
Wrong Gasoline in
Fuel Mixture
Water or Dirt in Fuel
System
Improper Timing
Engine Backfires
Spark Plug Fouled or
Defective
Improper Timing
Engine Sounds Like a Four-Stroke
Engine Not Warmed
Up Properly
Too Much Oil in Fuel
Mixture
Improper Timing
Engine Does Not Develop Normal Power And/Or Overheats
Wrong Oil
Wrong Gasoline
Fuel Mixture Too Lean
Fuel Mixture Too Rich
Cooling System Dirty
Refill fuel tank.
Open supply valve.
Open air vent or unscrew
cap.
Replace
Clean or replace
Tighten or replace
fittings.
See "Fuel mixture".
See "Fuel mixture".
Drain; flush thoroughly.
See "Ignition System".
Clean or replace.
See "Ignition System".
Allow longer warm-up
period.
See "Fuel mixture".
See "Ignition System".
See "Fuel mixture".
See "Fuel mixture".
See "Fuel mixture".
See "Fuel mixture".
Clean cooling system.
03/2016 – Page 16 of 52
WATERAX MARK-3 Owner's Manual
Carburetor Loose
Defective Carburetor
Low Speed Mixture Jet
Misadjusted
High Speed Mixture Jet
Misadjusted
Spark Plug Fouled or
Defective
No Spark
Wrong Type of Spark
Plug
Air Filter Dirty
Engine Flooded
Defective Carburetor
High Speed Mixture
Jet Misadjusted
Air Filter Dirty
Air Filter Dirty
Muffler Blocked
Low Speed Mixture Jet
Misadjusted
High Speed Mixture
Jet Misadjusted
Improper Timing
Tighten nuts and/or
studs.
Repair or replace.
See "Carburetor"
See "Carburetor"
Clean or replace.
See "Ignition System".
Use recommended
spark plug.
Clean or replace.
See "Flooded engine".
Repair or replace.
See "Carburetor"
Clean or replace.
Clean or replace.
Replace muffler and/or
spark arrestor
See "Carburetor"
See "Carburetor"
See "Ignition System".