Coolant Level; Spark Plugs - Yamaha SR1NRJ Original Instructions Manual


NOTE: If step 14 was followed and
the oil level is not within the "NOR-
MAL" range, add the recommended
engine oil.

NOTE: Care must be taken not to
over-fill the oil tank.
15. Install the oil level stick; then install
the hood and access panels.

Coolant Level


NOTE: Use a good quality, eth-
ylene glycol-based, automotive-type
coolant.
! WARNING
Always check the coolant level with
the engine cold.
Locate the filler neck located above the
resonator; then remove the coolant cap
from the filler neck. Verify that the coolant
is at the bottom of the tab in the filler neck.
Locate the coolant tank above the drive
clutch; then remove the plug from the
coolant tank. Add coolant to the full level
on the tank. Install the plug.
SNO-482
If the coolant is below the neck and if
coolant has been added, immediately
inspect for leakage and/or damage. If
leakage or damage is detected, take
the snowmobile to an authorized
Yamaha Snowmobile dealer for ser-
vice. If not under warranty, this ser-
vice is at the discretion and expense
of the snowmobile owner.

Spark Plugs


NOTE: Always use the recom-
mended spark plugs in the engine.
See the appropriate specifications
sheet for correct spark plug gap.
If adjusting spark plug gap is neces-
sary, do not use the center electrode
as a leverage point. Damage to the
plug may occur.
1. Disconnect the main harness from the
ignition coils; then remove the ignition
coils from the cylinder head cover.
2. Remove the three spark plugs.

NOTE: Prior to installing the spark
plugs, check the gap between the
electrode and ground strap. The
clearance should be 0.7-0.8 mm
(0.028-0.031 in.).
3. Install new spark plugs. Tighten to
0747-547
1.3 kg-m (9.4 ft-lb).
4. Install the ignition coils onto the cyl-
inder head cover making sure they
are fully seated. Connect the main
harness to the ignition coils.
5. Install the hood and access panels
CAUTION
CAUTION
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