Maintenance Schedules - Yamaha MM700A Manual

make sure the injection system is working (oil level di-
minishing),
Do not continue to use a 3U:I pre-mix ajkr
the first tank unless the snowmobile is oper-
ating in weather conditions where the ambi-
ent temperature is -26O C (-IJO F} or c o l d e ~
Under these conditions, the 50:l pre-mzk
tion. Refer to Comect Fuel Mixing in this
After the initial 10-15 hours, check all engine and ehas-
sis fasteners for tightness. If the snowmobile is going to be
used in extreme conditions, it might be a good idea to in-
crease the break-in a few hours. After break-in, tighten the
cylinder head nuts as described in this chapter.
spark plugs as described in this chapte~
Correct Fuel Mixing
cation for the first tank after rebuilding the engine, when
running the engine while bleeding the oil injection pump,
when removing the snowmobile from storage or when op-
erating the snowmobile under extreme weather condi-
tions. Using additional oil under normal conditions will
lead to spark plug fouling and rapid carbon buildup. Refer
to the following when mixing oil with the hel.
Gasoline is an extreme fire hazard, Nmer
open a container containing gaso~ine near
sparks, heat or$ame. Do not smoke ~vhile
Mix the oil with the gasoline in a well-ventilated loca-
tion. The oil temperabre should be at least 20Â C (68O F)
before attempting to mix the oil and gasoline.
2. Mix the oil and gasoline thoroughly in a separate,
dean, scalable container that is larger than the quantity
being mixed to allow for agitation.
3. Always measure quantities exactly. For a
line-to-oil mixture, 7 314 fl. oz. (229 mL) of oil should be
mixed with 3 U.S. gallons (1 1.4 L) of gasoline.
or higher.
5. Pour approximately 112 the required amount of gaso-
line into the mixing container, add the correct fill amount
of oil, then agitate the mixture thoroughly.
agitate the mixwe to completely mix the he1 and oil.
7. Use a finnel with a filter when pouring the pre-mixed
gasoline and oil into the snowmobile's he1 tank.
The maintenance schedule is divided into three parts:
time during the snowmobiling season. Refer to Table 1
(daily), Table 2 (monthly) and Table 3 (seasonally}.
time the engine fop end or bottom end has
been overhauled or the e n g i ~ e has been re-
moved @om the frame for other service.
Likewise, perform chassis and steering in-
spection procedares a$er major service has
gaso-
been perjormed to those components.
gasoline. Do not allow any smoking in areas
CHAPTER THREE
NOTE