Bulbs
Flower Basics
Flower Beds & Specialty Gardens
Flower Garden
Garden Furniture
Garden Gnomes
Garden Seeds
Garden Sheds
Garden Statues
Garden Tools & Supplies
Gardening Basics
Green & Organic
Groundcovers & Vines
Growing Annuals
Growing Basil
Growing Beans
Growing Berries
Growing Blueberries
Growing Cactus
Growing Corn
Growing Cotton
Growing Edibles
Growing Flowers
Growing Garlic
Growing Grapes
Growing Grass
Growing Herbs
Growing Jasmine
Growing Mint
Growing Mushrooms
Orchids
Growing Peanuts
Growing Perennials
Growing Plants
Growing Rosemary
Growing Roses
Growing Strawberries
Growing Sunflowers
Growing Thyme
Growing Tomatoes
Growing Tulips
Growing Vegetables
Herb Basics
Herb Garden
Indoor Growing
Landscaping Basics
Landscaping Patios
Landscaping Plants
Landscaping Shrubs
Landscaping Trees
Landscaping Walks & Pathways
Lawn Basics
Lawn Maintenance
Lawn Mowers
Lawn Ornaments
Lawn Planting
Lawn Tools
Outdoor Growing
Overall Landscape Planning
Pests, Weeds & Problems
Plant Basics
Rock Garden
Rose Garden
Shrubs
Soil
Specialty Gardens
Trees
Vegetable Garden
Yard Maintenance
How to Install a Primer Bulb in a Chain Saw
How to Install a Primer Bulb in a Chain Saw. Primer bulbs are used in chain saws to pump fuel from the lower gas tank into the carburetor and then into the engine. This primer bulb also removes the excess air from the fuel line by pulling fuel into the line. This helps prime the circuit, which allows your saw to be started. Installing a new primer...
Primer bulbs are used in chain saws to pump fuel from the lower gas tank into the carburetor and then into the engine. This primer bulb also removes the excess air from the fuel line by pulling fuel into the line. This helps prime the circuit, which allows your saw to be started. Installing a new primer bulb on most chain saws is easy and will only take a few minutes
Things You'll Need
Screwdriver
Allen wrench
New primer bulb
Turn off the saw. If it is electric, unplug it.
Use the screwdriver to remove the starter housing. The starter housing is located on the same side as the pull cord. There are usually two to three screws along the starter housing’s outer edge that keep the cover in place over the engine.
Pull off the starter housing cover. Keep the screws and the starter housing cover in a safe place where you won’t lose the screws.
Locate the primer bulb. On most saws it will be located in the upper right-hand corner of the starter housing. Use the Allen wrench to remove the primer bulb's screws. Put the screws in the same safe place as the other screws.
Pull out the primer bulb. It will still be attached to the fuel line, so don’t tug or pull the line too hard or else you will have to replace that as well.
Separate the connected fuel lines from the primer bulb. Squeeze the line with your fingers and pull it away from the primer bulb.
Attach the new primer bulb in the same manner you removed the old one. Make sure the fuel lines are securely fastened to the primer bulb.
Screw the primer bulb’s screws back in place with the Allen wrench. Set the starter housing back in place over the primer bulb and screw it in place with the screwdriver.
Tips & Warnings
You may need to use pliers to pull the primer bulb off the fuel line.
Be careful not to damage the fuel line when pulling off the primer bulb.
Always use caution when working around fuel.
