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Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 28922
Experience:  Service manager and technician for all brands of engines with 40 + years of experience.
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125cc 450e series model number 8p502 0005 hl. When engine is

Resolved Question:

125cc 450e series model number 8p502 0005 hl. When engine is running it revs up and down does not rev consistently. Any ideas what the problem could be? Thanks Barry
Submitted: 1 year ago.
Category: Small Engine
Expert:  Curtis B. replied 1 year ago.
https://www.jackssmallengines.com/jacks-parts-lookup/manufacturer/briggs-stratton/020000-09z999-series/08p500-to-08p599/08p502-0005-h1/armature-controls-electrical-system-governor-spring-ignition-spark-plug
Expert:  Curtis B. replied 1 year ago.
On the top of the carburetor is the linkage, try adding a slight amount of tension to the spring, You will have to bend the bracket a small amount to do this. You want to take the looseness out, not add a lot of tension,. Any added tension will speed engine rpm up!
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