Yamaha TMAX TECH MAX User Manual

Periodic maintenance and adjustment
8-11
8
To install the panel
Place the panel in the original position,
and then install the screws.
EAU19643
Checking the spark plugs
The spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos-
its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of each spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced.
Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness gauge and, if
necessary, adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the spark
plug threads.
1. Screw
2. Panel C
1
2
Specified spark plug:
NGK/LMAR7G
1. Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Tightening torque:
Spark plug:
13 N·m (1.3 kgf·m, 9.6 lb·ft)
UB3TE0E0.book Page 11 Tuesday, September 17, 2019 9:35 AM

Yamaha TMAX TECH MAX Specifications

General

Engine Type	Liquid-cooled, 4-stroke, DOHC, 4-valves
Displacement	562cc
Bore x Stroke	70.0 mm x 73.0 mm
Compression Ratio	10.9:1
Fuel System	Fuel Injection
Transmission	V-Belt Automatic
Front Suspension	Telescopic forks
Rear Suspension	Swingarm
Front Brake	Hydraulic dual disc, Ø267 mm
Rear Brake	Hydraulic single disc, Ø282 mm
Overall Length	2, 200 mm
Overall Width	765 mm
Seat Height	800 mm
Wheelbase	1, 575 mm
Wet Weight	220 kg
Fuel Tank Capacity	15 litres
Lubrication System	Wet sump
Ignition System	TCI
Starter System	Electric
Front Suspension Travel	120 mm
Rear Suspension Travel	117 mm
Minimum Ground Clearance	135 mm
Maximum Torque	55.7 Nm @ 5, 250 rpm
Front Tyre	120/70R15
Rear Tyre	160/60R15
Overall Height	1, 420 mm - 1, 555 mm (adjustable windscreen)