GEN
INFO
1-19
6S35H11
General information
Fuel system
Premixing system
New auto lube system (auto oil blend system) is used to obtain simple structure.
The oil is supplied to the fuel line via the mechanical oil pump, and obtained simple oil hose deliv-
ery layout.
This can obtain easier servicing.
The oil volume discharging from the pump is decided by the engine RPM with compensating the
throttle angle.
Oil control system
1) Oil feed pump control
This engine has the remote oil tank.
The oil feed pump is controlled as below.
ID mark
OUT
IN
Air bleed screw
5 Nm, 0.5 kgf·m, 4 ft·lb
Oil
Remote oil tank
Engine oil tank
Oil pump
Check valve
#1,#2
#3,#4
#5,#6
Carburetors
Fuel
Premixed fuel
Fuel feed pumps
Fuel filter
Primer pump
Fuel tank
Fuel system diagram
Oil level switch
Oil pump operation
SW-1
SW-2
SW-3
SW-B
ON
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
OFF
ON
/
OFF
ON
OFF
ON
OFF
ON
ON
OFF
ON
ON
ON
ON
ON
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
OFF
OFF
ON
ON
OFF
OFF
For 5 seconds after key switch is on.
OFF
Key switch is off.
OFF
Remote oil tank
Feed
pump
Filter
SW-B
SW-1
SW-2
SW-3
OFF
ON
OFF
ON
ON
OFF
ON
OFF
Engine oil tank
6S35H11_01 9/2/05 6:41 PM Page 22
Summary of Contents for 250GETO
Page 1: ...L250G SERVICE MANUAL 6S3 28197 5H 116 250G 250G L250G ...
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Page 135: ... MEMO 9 8 7 6 5 4 3 2 1 6S35H11 5 48 ...
Page 201: ...6S35H11 6 64 9 8 7 6 5 4 3 2 1 MEMO ...
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Page 292: ...YAMAHA MOTOR CO LTD Printed in Japan Aug 2005 1 4 1 E_2 Printed on recycled paper 250G L250G ...