Form No. 3430-379 Rev B
Engine Conversion Kit
Serial Number 280000001 and After Kawasaki-Powered
Walk-Behind Greensmaster
®
Flex
™
18 or Flex
™
21 Mowers
Model No. 138-2137
Installation Instructions
Introduction
This engine is not equipped with a spark arrester. It is
a violation of California Public Resource Code Section
4442 or 4443 to use or operate the engine on any
forest-covered, brush-covered, or grass-covered land
unless the engine is equipped with a spark arrester,
as defined in Section 4442, maintained in effective
working order or the engine is constructed, equipped,
and maintained for the prevention of fire.
If you require a spark arrester, contact your Authorized
Service Dealer. Genuine Toro spark arresters are
approved by the USDA Forestry Service.
Important:
These installation instructions
contain engine operation and maintenance
information that supersedes the engine operation
and maintenance procedures in your machine
Operator’s Manual
.
Before operating or maintaining the machine or
engine, always refer to the operating and safety
instructions in your
Operator’s Manual
.
Save these instructions.
Important:
This engine's warranty is provided
by the engine manufacturer. Please refer to the
engine manufacturer's warranty and emissions
system warranty included in the literature packet.
That warranty applies only to the engine. It does
not expand or otherwise alter any express or
implied warranty terms or warranty period that
may apply to the product into which the engine
is installed.
WARNING
CALIFORNIA
Proposition 65 Warning
The engine exhaust from this product
contains chemicals known to the State of
California to cause cancer, birth defects,
or other reproductive harm.
Contents
Introduction ............................................................... 1
Safety ....................................................................... 2
Safety and Instructional Decals .......................... 2
Installation ................................................................ 4
1 Installing a Gearbox Vent ................................. 4
2 Removing the Existing Engine ......................... 4
3 Installing the New Engine................................. 7
4 Preparing the New Engine ............................... 8
5 Installing the Controls ...................................... 8
6 Installing the Wire Harness and Throttle
Cable .............................................................11
7 Lubricating and Adjusting the Machine ........... 14
Product Overview ................................................... 14
Controls ........................................................... 14
Operation ................................................................ 15
Fuel Specifications ........................................... 15
Using Stabilizer/Conditioner ............................. 15
Filling the Fuel Tank .......................................... 15
Opening and Closing the Fuel-Shut-Off
Valve ............................................................. 16
Maintenance ........................................................... 17
Recommended Maintenance Schedule(s) ........... 17
Preparing the Machine for Maintenance............ 17
Servicing the Engine Oil.................................... 18
Servicing the Air Cleaner .................................. 19
Servicing the Spark Plug................................... 20
© 2019—The Toro® Company
8111 Lyndale Avenue South
Bloomington, MN 55420
Register at www.Toro.com.
Original Instructions (EN)
Printed in the USA
All Rights Reserved
*3430-379* B
