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low speed in carb stopped up....carb needs cleaning

Another AnswerMost common cause of engine revving up and down is a dirty or clogged air filter.
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Q: Briggs engine revs up and down?
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Briggs and stratton engine revs up and down?

Try servicing the air filter.


What repair is needed on a Briggs engine that revs up and down while running?

Most common culprit in surging is a dirty/clogged air filter.


What repair is needed on a 5.0 hp Briggs and straiten engine when the engine revs up and down the whole time it is running and the Governor rod is going in and out?

Most common culprit in surging is a dirty/clogged air filter.


Why the engine revs is going higher when pressing clutch down and changing gears?

Every time you engage the clutch, the clutch disengages from the transmission/engine. Which in term engine revs up, until you disengage the clutch.


What causes a Briggs and stratton engine idle speed go up and down?

The most common cause of engine surging (rev up and down) is a dirty air filter.


How come the engine only revs up when gas is applied in a 98 Chevy blazer?

Because that's how an engine runs. it can only ever rev up if you give it gas. no gas, no revs. more gas, more revs


When I drive my 1991 acura integra the engine revs up and down then stalls out?

replace the Air Idle Control Valve for starters


What is wrong with your Briggs and Stratton engine that just keeps revving up and down?

The most comon cause of an engine that keeps revving up and down (aka surging) is a dirty air filter.


Why does the oil gauge on your punto gt give you different readings?

because the engine turnes at diffrent speeds ie. tick-over is about 1.5k revs where as speeding down the road is at 5k revs the faster the engine turns the more the pressure builds up


How adjust motor revolution?

Turn the throttle, revs go up. Let to, revs go down.


When does an automatic transmission know when to change gears?

Gear changes are determined after how fast the engine is turning. For each gear there are set limits for which engine revs that are allowed. if the revs go high, the transmission changes up a gear, if the gears go low it drops down a gear.


Alpha romeo 156 t-spark has problem at idle engine revs up and down?

Yes it does, mine has exactly the same problem, can be the MAF sensor, fuel pump problems or the idle sensor. just changed the MAF on mine saw some improvements but still revs up and down occasionaly