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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 12592
Experience:  have worked on and around most engine models for 35 yrs./Polaris ATV expert
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Does the 300 series have a fuel mixture adjustment screw?

Customer Question

does the 300 series have a fuel mixture adjustment screw?
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.
Make of unit?
Expert:  Curtis B. replied 1 year ago.
Few units today have mixture screws.
Customer: replied 1 year ago.
ok then is there a way to stop it running so rich - its using a lot of gas and barely stays running - thanks
Expert:  Curtis B. replied 1 year ago.
I had asked for make of unit!
Expert:  Curtis B. replied 1 year ago.
Is choke fully open?
Expert:  Curtis B. replied 1 year ago.
try adjusting the high speed screw
Customer: replied 1 year ago.
sorry, I was searching for Briggs and Stratton so I originally thought you worked for them. Its a briggs and Stratton 300 series 148 cc on a Murray 21" deck. Where is the speed screw located?
Expert:  Curtis B. replied 1 year ago.
Need the model number of the engine, so I can see what carburetor. example(###) ###-####B1
Customer: replied 1 year ago.
Hard to see but looks like: 9L(###) ###-####F1 12052453, serial number 1205245199369I've looked all around the carburetor and I dont see any adjustment screws at allthanks
Expert:  Curtis B. replied 1 year ago.
http://outdoorpowerinfo.com/repairs/briggs_vacu-jet_vert_auto.asp