2003 YAMAHA BIG BEAR PRO 400 brake

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Page 228 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 7-55
WARNING
_ Use proper gear and maintain steady speed
when climbing a hill. 
If you lose all forward speed: 
Keep weight uphill. 

Apply the brakes. 

Lock the parking brake after you are
stoppe

Page 238 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 7-65
CROSSING THROUGH SHALLOW WATER 
The ATV can be used to cross slow moving, shal-
low water of up to a maximum of 35 cm in depth.
Before entering the water, choose your path care-
fully. Enter wher

Page 240 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 7-67
1. Check hose
1. Flexible de contrôle
1. Manguito de retención
Test your brakes after leaving the water. Do not
continue to ride your ATV without verifying that
you have regained proper braking

Page 244 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 7-71
SLIDING AND SKIDDING 
Care should be used when riding on loose or slip-
pery surfaces since the ATV may slide. If unex-
pected and uncorrected, sliding could lead to an
accident. 
To reduce the t

Page 248 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 7-75
WHAT TO DO IF ... 
This section is designed to be a reference guide
only. Be sure to read each section on riding tech-
niques completely.
WHAT TO DO ...
If your ATV doesn’t turn when you want

Page 250 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 7-77
If your ATV can’t make it up a hill you are trying
to climb: 
Turn the ATV around if you still have forward
speed. If not, stop, dismount on the uphill side
of the ATV and physically turn the

Page 252 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 7-79
If your ATV encounters shallow water: 
Ride slowly and carefully through slow moving
water, watching for obstacles. Be sure to let
water drain from the ATV and CHECK YOUR
BRAKES FOR PROPER OPERA

Page 260 of 394

YAMAHA BIG BEAR PRO 400 2003  Manuale de Empleo (in Spanish) 8-7
EBU00262PERIODIC MAINTENANCE/LUBRICATION
ITEM ROUTINEINITIAL EVERY
1
month3 
months6 
months6 
months1
year
Valves*•Check valve clearance.
•Adjust if necessary.Spark plug•Check condition.