Stow MS-93 manual White

STOW MS-93 PLASTER/MORTAR MIXER — TROUBLESHOOTING (ENGINE)

TABLE 11. ENGINE TROUBLESHOOTING (CONTINUED)

SYMPTOM	POSSIBLE PROBLEM	SOLUTION
Insufficient power output	Malfunction in cooling fan?	Check or replace cooling fan.
"compression" and overheats	Air in-take filter clogged?	Clean or replace air in-take filter.
	Over accumulation of exhaust	Clean and check valves.
Burns to much fuel	products?	Check muffler, replace if necessary.
	Wrong spark plug?	Replace spark plug with manufactures suggested type spark plug.
	Lubricating oil is wrong	Replace lubricating oil with correct viscosity.
Exhaust color is continiously	viscosity?
"WHITE"
	Worn rings?	Replace rings
	Air cleanner clogged?	Clean or replace air cleaner.
	Choke valve has not been set	Adjust choke valve to the correct position.
Exhaust color is continiously	to the correct position?
"BLACK"	Carburetor defective, seal on	Replace carburetor or seal.
	carburetor broken?
	Poor carburetor adjustment	Adjust carburetor.
	"engine runs too rich?

PAGE 34 — STOW MS-93 MIXER — OPERATION MANUAL — REV. #5 (03/26/10)