Question about Toro 2-Cycle 25.4 cc Straight Shaft Gas Trimmer 51974

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Runs at idle, but blogs down to stop when given throttle

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Scooter runs but bogs down when given throttle 2007 triton vento scooter will run bogs down when given throttle


Make sure the air box is installed and the snorkel is on the air box and that it's in good condition. They don't run well or sometimes at all beyond idle without the air box. Could also be a clogged main jet or otherwise dirty carburetor.

Oct 26, 2013 | Motorcycles

2 Answers

Stihl FS200 repair manual


I just saw this deal on the Fs200 Stihl Brushcutter. Equipped with a Zama c1qs51 carb. Junk the carb. Go to a stihl dealer and buy a three screw chainsaw type carb with a high low and idle screw. The c1qs51 is junk.The three school carb will put an end to your worries. Of course change your fuel filter naturally. I guarantee this will fix the thing. I own an Fs200 and Fs250.

Jul 15, 2012 | Garden

1 Answer

1993 toyota tercel,idles up and down at a fast constant rate.but runs well otherwise,no engine light on,checked all vaccuum,egr,throttle bod


If it tends to cut off when no gas given but sometimes idles up very fast & then slows back down, probably the idle air control valve. If so, will have to be replaced to fix.

Oct 25, 2011 | 1993 Toyota Tercel

1 Answer

2008 Yamaha Zuma Idle Speed Problems This is a stock 2008 Zuma 50cc scooter with 2200 miles on it that has a high speed surging issue. I can't get this to idle properly. When cold the engine starts...


TRY THIS;WHILE RUNNING SPRAY WD40 ALL OVER ENGINE..MOVE SLOWLY WHILE SPRAYING..NOW IF ENGINE REVS UP MAJIOR VACUMM LEAK....FIX AND BE HAPPY..GOOD LUCK..INDIAN HEAD SHALAC IS THE BEST SEALANT FOR ALL GASKETS AND VERY CHEAP COMPARED TO OTHERS THAT FAIL AFTER GETTING HOT A COUPLE OF TIMES..BUT I WOULD SAY YOU HAVE SOME KIND OF LEAK..THE ENGINE WILL BE SUCKING ALOT OF AIR THRU THIS AREA.PLUS IF IT LOOKS WET AROUND GASKET OR OIL LEAKS FAILING GASKETS..POTENTAIL VACUMM AREA..HOW DID IT RUN AFTER REBUILT..COULD BE SHOTTY WORK..JUST EXPLORING ALL AVENUES..COULD NEED HEAD RETORQUE IF THEY DIDNT USE LOCK TITE..BLUE NEVER THE RED..RED IS PERMANTE NEVER COMMING APART..HOPE THIS HELPS..BUT IF THE WORK YOU HAD DONE IS STILL UNDER WARRANTY THAN GIVE IT BACK TO GET FIXED..

May 21, 2011 | 2008 Yamaha Zuma

1 Answer

Not running at full throttle


close to the carb you will find two tiny screws. They are labeled H and L. L sets the idle speed. H sets the max RPM. Hold the throttle wide open and turn the H screw. When you find the very top end, back it down some or it will be running too lean. That would make it run hot, and provides less lubrication. Could result in engine failure if you run it too lean.

Dec 23, 2009 | Garden

1 Answer

When engine is warmed up the car begins hesitating


I really think it's the TPS, (throttle positioning sensor) on the throttle body. When this sensor is defective or out of position the vehicle will idle like that and even stall. If you haven't had it scanned, you should do so, that will probably tell you the problem.

May 28, 2009 | 2002 Nissan Xterra

2 Answers

Idle runs too high when I come to a stop, for about 5 seconds.


The throttle body may need to be cleaned. Take off the induction hose to the throttle and open the plate. Make sure the vehicle is not running. With the throttle plate wide open, soak a cloth rag with carb and choke cleaner and work the rag around the inside of the body especially where the plate's closed position is. remove the rag and spray a small amount of carb cleaner down the throat of the throttle body. replace hose and run vehicle at 1500 rpm's for a few seconds. This should fix the idle. It should be idling at about 800 rpms.

Apr 24, 2009 | 1999 Saturn SL

2 Answers

I have a 85 toyota celica, it wants to idles up and down tps is n


I would think that the TPS is not adjusted correctly. Move it until the idle stops fluctuating and advise how it runs.

The TPS does 2 things...It tells the computer the opening of the throttle plate, and it also sends a signal to the computer when the throttle plate is closed. If the TPS has the closed throttle switch activated, and the throttle plate is open, the ECU will fluctuate the idle up and down.

Jan 23, 2009 | 1985 Toyota Celica Supra

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