Chapter 2 Yamaha Autolube; What Is Yamaha Autolube; Features Of Yamaha Autolube; Handling The Oil Pump - Yamaha JT1 Series Service Manual

YAMAHA
AUTOLUBE·What is Yamaha Autolube? Features of Yamaha Autolube, Handling of the Oil Pump
CHAPTER 2 YAMAHA AUTOLUBE
( Automatic, Separate lubrication Sys tern)
2 -1 What is Yamaha Autolube?
Conventional 2-stroke engines are lubricated by oil pre-
mixed in gasoline. but YAMAHA ·s Autolube furnishes an
automatic, separate lubrication system, That 1s. the oil
in a separate oil tank is automatically regulated by the
oil pump and fed to the engine according to engine
speed and load
2-2 Features of Yamaha Autolube
YAMAWI AlJTOLUBE OIL
•. STRAIGHT ~IN£
iiij;~
Fig 2-1-1
The oil pump
1s
dnven by the engine through a reduction gear ,and is connected to the carburetor throttle cable,
which in turn is controlled by the occellerotor grip The oil pump automatically regulates the volume of lubricating oil
according to engine speed and throttle valve opening, thus pumping the optimum amount of oil for engi_ne !ubncation
under any operating condition.
This "automatic. separate lubrication" does not merely eliminate disadvantages in the conventional pre-mix system. but
11 further improves the perform,,nce and efficiency of 2-stroke designs by eliminating certain oil-starvation conditions
which formerly existed
The Autolube feeds an optimum amount of lubricating oil to the engine under any operating condition, thus
featuring .
*
Less oil consumption
*
Less carbon accumulation
*
Less exhaust smoke
*
Improved lubricating efficiency.
2 The Auto[ube simplifies fuel supply. thus featuring:
*
Using straight gasoline directly in the gas tank
*
Less fuel contamination.
3 The Auto!ube improves the reliability of lubrication. thus eliminating.
*
Special care concerning oil/fuel mixing ratios.
2 -3. Handling the Oil Pump
The oil pump is a precision-machined assembly. Make no attempt to disassemble
it.
When you remove the oil pump
from the engine. protect 1t from dust dirt. ·etc,. and after reinstalling lt. bleed and adjust the pump correctly. Proper
handling will keep the pump free from trouble.
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