TOHATSU MFS 25C Service Manual

iii
4st 25/30 2016
£°-iÀÛViÊvÀ>Ì
£Ê `iÌvV>ÌÊ}iÊ-iÀ>Ê ÕLiÀ® ÊoÊ1-2
ÓÊ -iVÕÀ}ÊvÊÜÀÊÃ>viÌÞÊ ooooo 1-2
1) Fire Prevention …………………………… 1-2
2) Ventilation …………………………………… 1-2
3) Protection …………………………………… 1-2
4) Genuine Parts ……………………………… 1-2
5) Tools ………………………………………… 1-3
6) Recommendations on service …………… 1-3
7) Cautions in disassembling and assembling components … 1-4
ÎÊ /ÃÊ>`ÊÃÌÀÕiÌÃÊ oooooo Ê1-5
1) Test Propeller ……………………………… 1-5
2) Measuring instruments …………………… 1-5
3) Special Tools ……………………………… 1-6
{Ê *Ài`iÛiÀÞÊëiVÌÊ ooooo Ê1-9
1) Steering Handle …………………………… 1-9
2) Gear Shift …………………………………… 1-9
3) Engine Oil …………………………………… 1-9
4) Gear Oil ……………………………………… 1-9
5) Fuel Line …………………………………… 1-10
6) Rigging ……………………………………… 1-10
7) Inspection of PTT unit ……………………… 1-10
8) Inspection of gas shock absorber ………… 1-10
9)
Inspection of starting switch andstop switch … 1-11
10) Cooling water check port ………………… 1-12
11) Idling ………………………………………… 1-12
12) Propeller Selection ………………………… 1-12
13) Trim Tab …………………………………… 1-13
xÊ Ài>Ê"«iÀ>ÌÊ oooooooo Ê1-13
ÈÊ /iÃÌÊ,ÕÊ oooooooooooooo Ê1-14
ÇÊ iVÃÊvÌiÀÊ/iÃÌÊ,ÕÊoooooo Ê1-14
Ó°-iÀÛViÊ>Ì>
£Ê "ÕÌiÊiÃÃÊoooooooo Ê2-2
1) Engine Dimensions ………………………… 2-2
2) Transom Bolts ……………………………… 2-3
ÓÊ ÕiÊiVÌÊ-ÞÃÌiÊ oooooo Ê2-4
1) ECU Fuel Feed System …………………… 2-4
ÎÊ }iÊÕLÀV>ÌÊ-ÞÃÌiÊ>}À> ÊÊ2-5
{Ê }Ê7>ÌiÀÊ-ÞÃÌiÊ>}À>Ê Ê2-6
xÊ -«iVvV>ÌÃÊooooooooo Ê2-7
ÈÊ >Ìi>ViÊ>Ì>Êooooooo Ê2-10
ÇÊ /}Ìi}Ê/ÀµÕiÊ>Ì>Êoooo Ê2-18
nÊ -i>>ÌÊ««V>ÌÊV>ÌÃÊ Ê2-20
ΰ>Ìi>Vi
£Ê -«iV>Ê/ÃÊ ooooooooooo 3-2
ÓÊ ëiVÌÊ-Vi`ÕiÊ ooooooo 3-3
ÎÊ ëiVÌÊÌiÃÊ ooooooooo 3-4
1) Inspection of Top Cowl …………………… 3-4
2) Inspection of Fuel System Piping ………… 3-4
3) Inspection of Fuel Tank …………………… 3-5
4) Inspection of Fuel Filter …………………… 3-5
5) Replacement of Engine Oil ……………… 3-6
6) Replacement of Oil Filter ………………… 3-7
7) Inspection of Gear Oil Quantity …………… 3-8
8) Inspection of Water Pump …………… 3-8
9) Replacement of Gear Oil …………… 3-10
10) Inspection of Gear Case (for leakage) 3-11
11) Inspection of Timing Belt …………… 3-12
12) Replacement of Timing Belt ………… 3-13
13) Installation of Timing Belt …………… 3-15
14) Inspection of Spark Plugs …………… 3-17
15) Inspection of Compression Pressure 3-18
16)
Inspection and Adjustment of Valve Clearance 3-19
17) Throttle Cable ………………………… 3-20
18) Inspection of Shift Lever Gear Operations … 3-24
19) Inspection of PTT Unit Operation …… 3-25
20)
Inspection of Gas Assistant Unit Operations 3-25
21) Inspection of PTT Fluid Quantity …… 3-26
22) Inspection of Idle Speed ……………… 3-27
23) Inspection of Ignition Timing ………… 3-27
24) Inspection of Anodes ………………… 3-28
25) Replacement of Anodes ……………… 3-28
26) Inspection of Propeller ……………… 3-29
27) Inspection of Thermostat …………… 3-29
28) Inspection of Cooling Water Passage … 3-30
29) Flushing with Water …………………… 3-31
30) Inspection of Battery ………………… 3-32
31) Greasing Points ……………………… 3-33
{° ÕiÊ-ÞÃÌiÊÕiÊiVÌ®
£Ê -«iV>Ê/ÃÊoooooooooo Ê4-2
ÓÊ *«}ÊÀÀ>}iiÌÊ>}À>ÊÊ4-3
Ê
Fuel Hose, Vent Hose, Breather Hose, Cooling Water Hose … 4-3
ÎÊ *>ÀÌÃÊ>ÞÕÌÊoooooooooo Ê4-4
Fuel System ……………………………… 4-4
Intake Manifold …………………………… 4-6
Magneto …………………………………… 4-8
Electric Parts ……………………………… 4-9
Separate Fuel Tank ……………………… 4-11
{Ê 1Ê-ÞÃÌiÊ oooooooooo Ê4-12
Ê £®Ê v}ÕÀ>ÌÊvÊ1Ê-ÞÃÌi ÊÊ4-12
1) Sensors ………………………………… 4-13
2) Actuators ……………………………… 4-15
3) Control System (ECU) ……………… 4-16
Ê Ó®Ê ÌÀÊ-ÞÃÌiÊ ooooooo Ê4-16
Ê Î®Ê ÕiÊiVÌÊÌÀÊoooo Ê4-17
1) Fuel Injection Timing ………………… 4-17
2) Starting Fuel Increase Correction …… 4-18
3)
Acceleration Fuel Increase Correction 4-18
4) Deceleration Fuel Decrease Correction 4-18
5) Correction Based On Intake Air Temperature … 4-18
6) Correction Based On Cylinder Cooling Water Temperature 4-18
Ê {®Ê ÌÀÊvÊÕiÊii`Ê*Õ«Ê*®Ê Ê4-18
Ê x®Ê ÌÀÊvÊ/>ViÌiÀÊ ooo Ê4-18
Ê È®Ê 7>À}ÊÕââiÀÊ>`Ê>«Ê®]Ê>`Ê
ÊÊ ÌÀÊvÊ}iÊ,iÛÕÌÊ-«ii` ÊÊ4-19
1)
Locations of warning buzzer and lamp (LED) … 4-19
2)
Warning notification, abnormality and action to be taken 4-19

TOHATSU MFS 25C Specifications

General

Brand	TOHATSU
Model	MFS 25C
Category	Outboard Motor
Language	English