TOHATSU 2 Stroke Cylinder Series User Manual

POWERHEAD
4-27
1-/ 2-Cylinder
Exhaust Cover
6. Remove the exhaust cover bolts. Insert screwdrivers
into pinch grooves to separate and remove outer and
inner exhaust covers.
Crankcase and Crankshaft
7. Remove and discard oil seal (1) and o-ring (2) from lower
crankcase head (or engine base or lower cowl). Use a seal
puller to prevent damage to the head.
8. Remove the crankcase bolts and separate the crankcase
from the cylinder block.
NOTE
Start with the bolts farthest from the center of the
crankcase and work inwald.
9. Tap the tapered portion of the crankshaft (3) with a
rubber mallet to loosen it. Lift the crankshaft and
pistons from the cylinder block and place on bench for
disassembly.
10. Slide the upper main bearing off the crankshaft. Remove
and discard bearing oil seal
(4) and o-ring (5) .
NOTE
The 25/30 crankshaft has a bearing race which
blocks removal of the bottom piston. Lift up and
remove race to remove the crankshaft assembly.
8 9
10
11
12 13
14
T1684
T1685
T1680 T1592
T2203
10
T1682
T1683

TOHATSU 2 Stroke Cylinder Series Specifications

General

Engine Type	2-Stroke
Fuel System	Carburetor
Ignition System	CDI
Fuel/Oil Mixture Ratio	50:1
Full Throttle Operating Range	4500 - 5500 rpm
Starting System	Manual recoil
Gear Ratio	2.08:1
Gear Shift	Forward, Neutral
Exhaust	Through propeller hub
Oil Tank Capacity	N/A (pre-mix)
Recommended Fuel	Unleaded gasoline (min 87 octane)
Recommended Oil	TCW3 Outboard Oil