Service manual

TUN
9-8
• In actuality, it is very difficult to achieve set-
tings suitable for the entire course and
some settings may be sacrificed. Thus, the
settings should be matched to the portion
of the course that has the greatest effect on
the race result. In such a case, run through
the entire course while making notes of lap
times to find the best balance; then, deter-
mine the secondary reduction ratio.
• If a course has a long straight portion
where a vehicle can run at maximum
speed, the vehicle is generally set such that
it can develop its maximum revolutions
toward the end of the straight line, with care
taken to avoid the engine over-revving.
N
O
TE:N
O
TE:
Riding technique varies from rider to rider and
the performance of a vehicle also vary from
vehicle to vehicle. Therefore, do not imitate
other rider’s settings from the beginning but
choose your own setting according to the level
of your riding technique.
DRIVE AND DRIVEN SPROCKETS SETTING
PARTS
YZ85:
*For EUR, CAN
**For AUS, NZL
YZ85LW:
Part name Size Part number
Drive
Sprocket
(STD) 14T 9382A-14227
15T 9382A-15228
Real wheel
sprocket
46T 5PA-25446-00
*(STD) 47T 4ES-25447-10
**(STD) 48T 5PA-25448-00
49T 5PA-25449-00
Part name Size Part number
Drive
Sprocket
(STD) 14T 9382A-14227
15T 9382A-15228
Real wheel
sprocket
51T 5PA-25451-00
(STD) 52T 5PA-25452-00
53T 5PA-25453-00
CHASSIS