Question about 1989 Honda VT 600 C Shadow

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Starts and runs. Needs choke to sta running except high rpms,

Seems it needs more fuel at low rpms. Backfires on decelleration.weak low rpm power.

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Posted on Apr 29, 2009


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1 Answer

If a full a rpm cost backfire

If what you are saying is that when you reach maximum rpm the car backfires, first be aware that most ignition modules have two sections--one for low rpm and one for high rpm. Could be bad ignition module. Also possible that some tune up item (plug wires, dist. cap) is bad, or that the engine is running too lean at high rpms (bad fuel pump, dirty filter, etc.)

Aug 11, 2015 | Cars & Trucks

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2006 Suzuki King Quad sputters at high RPMs like it's breaking down. It starts good and seems to run alright except in high RPMs.

Make sure you have the CORRECT spark plug... use what the owners manual says... NGK..

. A non - resistor plug will make some motors sputter at high rpm's ...if the quad calls for a "R" plug..use one!

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My 1996 Toyota Camry is having starting problem. It turns over but won't start unless I floor the gas pedal. Once she's running, she runs like a charm. She starts right up when I'm driving running errands....

all cars have automatic choke system when the engine is cold the choke is automaticall at onn

you must have noticed that when the car was ok and was cold started it use to stay at high rpm and after its warm the rpm reduces

so get your choke settings checked or needs some part to change in the choke system

Feb 11, 2011 | 1996 Toyota Camry

2 Answers

The trimmer starts like a dream but only runs with choke on

sounds like the carb needs to be removed and cleaned. It the chunk of metal that has the fuel line going to it on top of the engine.

Use a phillip screwdriver and possible a small ratchet to break it down and clean it thuroghly with gasoline.

After you get it back together and have cleaned it up as much as possible, crack her up with full choke again. this time though, allow it to run and barely ramp up the rpms enough to give it a little lug. When the engine seems to begin losing power, (these adjustments should be as small as possible until you get her running smooth) dial the choke back just enough to ramp up the rpms. This will probably take a few tries, but most definately should work in your case.

Once the trimmer is running smooth with the choke off you will be good to go.

Many times our trimmers and other 2cycle engines dont get the proper attention to keep them running up to par. Take the time to consider the unique properties of your tools to determine any possible future repair. Anytime you have and engine that burns a home mixed fuel there will be the risk of trash in the fuel system


Jun 03, 2010 | Poulan 25cc 2-Cycle Gas Powered String...

1 Answer

Will not operate with choke full open

It sounds more like the high speed jet needs to be opened. No engine will run with the choke on. Open it up, find the little screw labeled high or fast, you have 2, one low or slow, If opening it up doesn't work, try closing it, turn it a very little bit at a time to see what it does. Hope this helps.

May 12, 2010 | Garden

1 Answer

96 grand am 2.4L DOHC, replaced the Crankshaft sensor and the throttle body sensor. Engine is hard to start and won't stay running. Sounds like when a choke is stuck and backfires when it quits running

Check the charging system13.65 volts,to 14.25 volts at the battery when running and lights and blower fan on high.Check the battery connections,that they are clean.The fuel pressure maybe low,check the fuel filter,and the fuel pressure to see if the fuel pump is weak.

Jan 29, 2010 | 1996 Pontiac Grand Am

1 Answer

1984 Aspencade backfires in midrange RPMs

1. Check timing belts and ignition timing.
2. Service carburetors

Jun 12, 2009 | 1984 Honda GL 1200 Aspencade Gold Wing

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TTR250 only runs on choke or high RPM

Running Lean so idle circuit in carb is restricted. need to pull carb and clean the jet passages., Sorry.

Jun 09, 2009 | 2002 Yamaha TT-R 250

1 Answer

No power

check for restricted exhaust next
some manufactuers put screens in their exhausts and they tend to plug up sometimes remove clean and put back screen.
When you removed carb. and dimantled were the rubber pieces soft and pliable? if they were not then consider a carb. kit
Be sure on the needle valve side of the carb. the diaphram side
the gasket goes first then the diaphram not the opposite. Zama or walbro the same deal
sometimes you have to dismantle the carb totally and drop it in carb. cleaner for awhile to allow to penetrate where its hard to clean and sometimes you have to replace the carb,but not always
the initial carb. setting for high and low is 1and1/4 turn and tweek from there.
Also the smallest pinhole in the fuel lines will create havoc also.
and if compression is weak or low the carb. will not work properly either.
Try these things and maybe it will help you some?

Jun 01, 2009 | Ryobi Garden

1 Answer

Mower not running at set speed, choking

you should have an air/fuel mixture screw on the carb somewhere. Start the engine and turn it one way then the other a small amount at a time. One way it will get worse and one way it will get better. Keep turning till it smooths out

May 09, 2009 | Garden

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