Snowmobile Yamaha RX1 (2003 year). Manual - part 22

9-2

2. Open the shroud.

3. Remove the red (+) lead from the lead

holder and move it away from the black
(-) lead.

CAUTION:

@ 

Be sure to connect the red (+) jumper
cable to the red (+) lead and the black (-)
jumper cable to the black (-) lead. Do not
reverse the connections. 

@

4. Pull the red (+) lead cover to expose

the terminal through the slit in the
cover, and then connect the red (+)
jumper cable to the red terminal of the
discharged battery.

5. Connect the other end of the red (+)

jumper cable to the positive (+) terminal
of the booster battery.

6. Connect the black (-) jumper cable to

the negative (-) terminal of the booster
battery.

7. Pull the black (-) lead cover to expose

the terminal through the slit in the
cover, and then connect the black (-)
jumper cable to the black terminal of
the discharged battery.

8. Start the engine.
9. Disconnect the black (-) jumper cable

from the black (-) connecting lead, and
then pull the cover completely over the
lead terminal.

10. Disconnect the black (-) jumper cable

from the negative (-) terminal of the
booster battery.

11. Disconnect the red (+) jumper cable

from the positive (+) terminal of the
booster battery.

12. Disconnect the red (+) jumper cable

from the red (+) connecting lead, and
then pull the cover completely over the
lead terminal.

13. Install the red (+) lead into the lead

holder.

9-3

NOTE:

@ 

Make sure that both the red (+) lead and
the black (-) lead are seated securely in the
lead holders. 

@

WARNING

@ 

Be sure to pull the lead covers back
over the terminals completely. If the ter-
minals are exposed, they could come
into contact with the frame or a metal
part of the snowmobile and this can
cause electrical system damage or A
FIRE HAZARD. 

@

C. Electric starter does not operate or

operates slowly 

1. Engine stop switch is pushed in ... Pull

it out. 

2. Faulty wire connections ... Check con-

nections or ask a Yamaha dealer to
inspect. 

3. Discharged battery... Charge battery or

see B above. 

4. Seized engine ... Seizure is caused by

poor lubrication, inadequate fuel, or an
air leak—Ask a Yamaha dealer to
inspect. 

5. “Hydrostatic lock” occurs when fuel has

filled the cylinders when the vehicle
has been transported. ... Remove the
spark plugs and turn the engine over
several times with the ignition off to
expel excess fuel. Ask a Yamaha
dealer to inspect.

D. Engine power is low 

1. Low coolant temperature indicator light

is flashing ... Warm the engine up. 

2. Faulty spark plugs ... Clean or replace

the spark plugs. 

3. Incorrect jetting for altitude or tempera-

ture ... Carburetor. Ask a Yamaha
dealer to inspect. 

4. Improper fuel flow ... See A.1 above. 
5. Incorrect V-belt clutch settings for alti-

tude or conditions ... Ask a Yamaha
dealer to inspect.

E. Engine constantly backfires or mis-

fires 

1. Faulty spark plugs ... Replace the

spark plugs. 

2. Clogged fuel system ... See A.1. above. 
3. Malfunctioning T.O.R.S. system ... See

A.2. above.

F. Engine overheats 

1. Insufficient coolant ... Add coolant. 
2. Air in cooling system ... Bleed air or ask

a Yamaha dealer to inspect. 

3. Leaking coolant ... Ask a Yamaha

dealer to inspect.

G. Snowmobile does not move 

1. Malfunctioning V-belt clutch ... Ask a

Yamaha dealer to inspect. 

2. Drive track does not move ... Foreign

object is caught in the drive track, or
slide runners have melted to the slide
metal due to lack of lubrication. 

3. Tight, loose, or broken drive chain ...

Ask a Yamaha dealer to inspect.

H. V-belt twists 

1. Improper V-belt ... Replace with the

correct V-belt. 

2. Incorrect V-belt clutch offset ... Ask a

Yamaha dealer to inspect. 

3. Loose or broken engine mount ... Ask a

Yamaha dealer to inspect.

I.

V-belt slips or burns 

1. Oily or dirty V-belt or primary and sec-

ondary sheave assembly surfaces ...
Clean. 

2. Problem with the driveline ... See G

above.

9-4

J. Engine does not upshift or down-

shift properly or engages harshly 

1. Worn or damaged V-belt ... Replace the

V-belt or ask a Yamaha dealer to
inspect. 

2. Incorrect V-belt clutch settings for alti-

tude or conditions ... Ask a Yamaha
dealer to inspect. 

3. Worn or sticking primary sheave

assembly ... Ask a Yamaha dealer to
inspect. 

4. Worn or sticking secondary sheave

assembly ... Ask a Yamaha dealer to
inspect.

K. Noise or excessive vibration in drive

chain and sprockets 

1. Broken V-belt clutch components ...

Ask a Yamaha dealer to inspect. 

2. Worn or damaged bearings ... Ask a

Yamaha dealer to inspect. 

3. Worn or damaged V-belt with flat spots

... Replace. 

4. Worn or damaged idler wheels or

shafts ... Ask a Yamaha dealer to
inspect. 

5. Worn or damaged drive track ... Ask a

Yamaha dealer to inspect.

10-1

ESU00359

10-

STORAGE

Long term storage requires some preven-
tive procedures to guard against deteriora-
tion.

1. Cleaning 

Thoroughly clean the snowmobile, inside
and out, to remove the corrosive salts and
acids that can accumulate. Use Yamaha
Mud and Grease Release, or an equivalent
product, to loosen mud, grease, and grime.
Wash with mild soap, then rinse and dry
completely.

2. Lubrication 

Lubricate moving parts, suspension link-
age, and pivot points. Use the grease or
lubricant specified in the “PERIODIC
MAINTENANCE” section, or Yamaha
Lube-Zall general purpose lubricant.
Proper lubrication fights corrosion while it
reduces friction.

3. Fuel system preparation 

Add Yamaha Fuel Conditioner/Stabilizer, or
an equivalent stabilizer, to the fuel tank to
help prevent fuel oxidation, gum and var-
nish deposits, and to inhibit corrosion in
the fuel system and carburetor. In areas
where oxygenated fuel (gasohol) is used,
completely drain the fuel system. Ask a
Yamaha dealer if further information is
needed.

4. Engine 

Proper storage of the engine is essential to
prevent costly rust and corrosion damage
to internal engine components. This is
more important in areas where oxygenated
fuel (gasohol) is used, because the alcohol
content in the fuel increases the chance for
water to enter the engine. Use Yamaha
Stor-Rite Fogging Oil, or an equivalent fog-

ging oil, to protect both the combustion
chamber and crankshaft from corrosion.
An alternate method is to remove the car-
buretor silencer and squirt oil into the car-
buretor throats while the engine is running.

CAUTION:

@ 

Do not attempt to store the snowmobile
by simply starting the engine occasion-
ally during the storage period. This can
cause more harm than good! Moisture
and acids form during combustion
which can actually increase the chance
for corrosion damage during the stor-
age period. 

@

5. Protection 

Apply a coat of wax, such as Yamaha Sili-
cone Wax, to painted surfaces. Spray
Yamaha Silicone Spray, or an equivalent
protectant, on the exterior of the engine,
drive track, and on other metal, plastic, and
rubber parts.

6. Battery

Remove the battery from the snowmobile.
Store it in a cool, dry place that is above
0 °C (32 °F), but less than 30 °C (90 °F).
Check the condition of the battery once a
month, and charge it as necessary.

WARNING

@ 

●

Never smoke around the battery
while it is being charged. Sparks
may ignite the hydrogen gas created
by the battery. 

●

Never connect to or disconnect the
battery from the snowmobile while it
is being charged. Sparks may ignite
the hydrogen gas created by the bat-
tery. 

●

Make sure that the battery terminals
are tight. 

@