Yamaha YBR250, Owner'S Manual

Page: 44 / 80

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
NOTICE
ECA11620
●
In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.
●
Make sure that no foreign mate-
rial enters the crankcase.
12. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
13. Turn the engine off, and then
check the oil level and correct it if
necessary.
EAU20881
Cleaning the air filter element
The air filter should be cleaned at the
specified intervals. It should be cleaned
more frequently when riding in unusual-
ly wet or dusty areas.
1. Remove panel B. (See page 6-6.)
2. Remove the air filter case by re-
moving the screws.
3. Remove the air filter from the case.
4. Remove the air filter element from
its guide and clean it with solvent.
After cleaning, remove the remain-
ing solvent by squeezing the ele-
ment.
1. Air filter case cover
2. Screw
1. Air filter element
1
U5D1E1E0.book Page 11 Friday, September 5, 2008 1:17 PM