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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26744
Experience:  Service manager and technician for all brands of engines with 40 + years of experience.
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Briggs & Stratton Series 3 115 in a Stiga ride on mower. I

Resolved Question:

Briggs & Stratton Series 3 115 in a Stiga ride on mower.
I drained the fuel and replaced for new season, and changed the spark plug.
There doesn't seem to be a priming bulb, and its electric start only.
The fuel is through to the filter but don't know how to get it "uphill" into the engine.
Is there a priming method ?
Thanks
Ivan
Submitted: 10 months ago.
Category: Small Engine
Expert:  Curtis B. replied 10 months ago.
NO, is there a choke lever or choke cable to help in the fuel to the engine? Is there a three hose fuel pump between the fuel tank and the carburetor,or is it gravity feed from tank to carb? If it does not fire off, try putting a teaspoon of fuel direct into the spark plug hole,re-install the spark plug and see if it will run.
Customer: replied 10 months ago.
Yes there is a choke lever, which i have been using.
It is a gravity feed from tank to carb, and the fuel filter is in-line between the two.
The fuel is through to the filter, but can't tell beyond that.
The teaspoon in the plug hole created one big backfire, but no more.
Expert:  Curtis B. replied 10 months ago.
Can you remove the float bowl on the carburetor., and see if the float and needle valve are letting fuel into the bowl?
Customer: replied 10 months ago.
Having had a look at the carburettor I now see that there is a pump.
I see the three hoses you spoke of, and the small circular black pump.
Is there a means of priming it ?
Expert:  Curtis B. replied 10 months ago.
NO, the pump is a pulse pump and uses the movement of the piston in the cylinder to power it. If you remove the P line (pulse), you should feel a slight pressure as you crank engine.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 26744
Experience: Service manager and technician for all brands of engines with 40 + years of experience.
Curtis B. and other Small Engine Specialists are ready to help you
Customer: replied 10 months ago.
Okay, thank you.
The machine is fairly young, and if the pump is faulty it may well be under warranty.
I don't want to take too much apart in case I invalidate warranty.
I may have to give in and put it back to the dealer.
Thanks for your help, anyway
Expert:  Curtis B. replied 10 months ago.
Thank you!

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