Use clean, fresh unleaded gasoline with a minimum Antiknock Index of 90.
The Antiknock Index is posted on service
station pumps. The octane rating
of a gasoline is a measure of its resistance
to detonation or “knocking.” The
Antiknock Index is an average of the
Research Octane Number (RON) and
the Motor Octane Number (MON) as
shown in the table.
NOTICE
Use minimum of 90 octane gasoline only to prevent severe engine damage.
NOTICE
If engine “knocking” or “pinging” occurs, use a different brand of gasoline of a higher octane rating. If this condition is allowed to continue it can lead to severe engine damage.
Gasoline quality is important.
Fuels of low quality or not meeting standard industry specifications may result in unsatisfactory performance. Operating problems that result from the use of poor quality or nonrecommended fuel may not be covered under your warranty.
Fuel Tank
Fuels Containing OxygenatesOperating Procedures
Clean the seat area carefully.
Coat the seat with machinist’s dye.
Fit a 45° cutter into the holder and slide it into the valve
guide.
Press down lightly on the handle and turn it right or left.
Grind the seating surface only until it is smooth.
NOTICE
Do not grind the seat too ...
Crankshaft Side Clearance Inspection
Insert a thickness gauge [A] between the thrust washer
[B] on the crankcase and the crank web [C] at the #3 main
journal to determine clearance.
If the clearance exceeds the service limit, replace the
thrust washers as a set and check the width of the crankshaft
#3 main journal.
Cra ...
Exhaust Pipe Installation
Replace the exhaust pipe gaskets [A] and premuffler
chamber gasket [B] with new ones.
Install the premuffler chamber gasket to the premuffler
chamber [C] until it is bottomed so that the chamfer side
faces exhaust pipe [D].
Install the exhaust pipe clamp [E] as shown in the figure.
I ...