TOHATSU M9.8B User Manual

Use a genuine propeller.
A propeller must be selected so that the engine rpm measured at wide open throttle
while cruising is within the recommended range.
Recommended range at WOT:
6B • 8B
= 4,500 to 5,500 rpm
9.8B = 5,000 to 6,000 rpm
Mark
Propeller Size
(Diameter x pitch)
Standard propeller on the model
inch mm 6 8 9.8
Light boats
Heavy boats
9.5 8.9 x 10 226 x 255
F8.5 8.9 x 8.3 226 x 211 S S S
7.5 8.5 x 7.5 216 x 190 L & UL
7 8.9 x 7.0 226 x 178 L L & UL
6.5 8.5 x 6.5 216 x 165
S : Short shaft
L : Long shaft
UL : Extra long shaft
60
13
PROPELLER TABLE

TOHATSU M9.8B Specifications

General

Engine Type	2-stroke
Power Output	9.8 HP
Starting System	Manual
Gear Ratio	2.08:1
Full Throttle Operating Range	5000-6000 RPM
Number of Cylinders	2
Ignition System	CDI
Fuel System	Carburetor
Steering	Tiller
Weight	26 kg
Fuel Tank Capacity	12 L
Full Throttle RPM Range	5000 - 6000 rpm
Dry Weight	26 kg
Shaft Length	15 in
Displacement	169 cc (10.3 cu. in.)