Replace Spark Plug - Briggs & Stratton 272147 Repair Manual

TM
Vanguard Twin-Cylinder OHV Liquid-Cooled Engine
Section 1 - General Information
bore to wear quickly. As the rings and cylinder bore
become worn, these abrasive particles enter the
crankcase and contaminate the oil, forming an abrasive
mixture which will cause wear on all of the internal
moving parts.
Clean cartridge every 100 hours. To clean cartridge,
gently tap on end with handle of screwdriver. Replace
cartridge every 600 hours. Clean and replace more often
under dusty conditions. Replace if very dirty or any
damage occurs to cartridge.
NOTE
: Do not use pressurized air or solvents to
clean cartridge. Pressurized air can damage
cartridge; solvents will dissolve cartridge.
1. Unlock clamps
2. Remove cartridge
3. Carefully clean out air cleaner cover.
4. Install cartridge in body.
5. Install cover and lock clamps with rubber valve
down.
Fig.5
and remove cover .
from air cleaner body.

REPLACE SPARK PLUG

Replace spark plugs every year. Replace spark plugs if
electrodes are burned away, or the porcelain is cracked.
Set spark plug gap at .020" (.51 mm). Torque spark
plugs to 180 in. lbs. (20.0 Nm).
B&S to Champion*
Plug Type
Resistor Plug 491055
Resistor Plug 496018
* Champion and the Bow Tie are trademarks of Federal-Mogul Ignition
Co. Used under license.
NOTE
: Do not blast clean spark plugs. Spark
plugs should be cleaned by scraping or hand
wire brushing and washing in a commercial
solvent.
Fig. 6
B&S Champion*
RC12YC
RC14YC
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