Question about kawasaki 2009 Teryx 750 FI 4x4

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Engine will not ideal, engine back fires

Engine will start with full choke the engine will not ideal anytime. when driving engine back fires

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Carb needs cleaned

Posted on Mar 24, 2014

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Posted on Jan 02, 2017

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02 Kawasaki prairie fires but wont stay running. Please help.


You've got spark to get it to fire, but not enough air or fuel to keep it running. When you are starting the engine, your carburetor makes the fuel mixture richer, by reducing the amount of air in comparison to the amount of fuel it's sending to the engine (that's the "choke"). Then, when it's running the motor's vacuum rebalances the mixture to normal and that's when you conk out. Chances are it's a fuel delivery issue, without that choke the mixture goes too lean (not enough fuel).

You've probably been running standard gas with 10% ethanol. I have found that on older ATV's (like my 98 Honda), especially if the ATV sits for a month or two unused, ports in the carb clog with the residue from ethanol and it needs to be cleaned.

Unfortunately, you can't just spray something in the intake of the carb, you have to remove it and spray the cleaner into numerous ports in the carb and preferably blow them out with compressed air. If you're mechanically inclined, it's pretty easy, and costs almost nothing. However, ethanol also attacks rubber parts used in earlier carbs, possibly like yours, and that can mean replacing a couple parts, but rarely anything expensive.

Jan 10, 2017 | ATVs

1 Answer

98 kodiak 400 4x4 wants to back fire at full throttle choking it helps a little


your carb needs cleaned/adjusted. your float could be set wrong. could be an air leak somewhere.

Dec 30, 2016 | Yamaha 2004 Kodiak 400 Auto 4x4

1 Answer

How to Adjust idle circuit? Why does it start, but does not keep running.


2 stroke or 4? if 2 stroke definitely jetted wrong choking makes it rich tells me your main jet is too lean (smaller hole) you need to pull carb check jets for plugage clean jets write down numbers check dealer for correct jet size for your elevation if 4 stroke back fire thru carb indicates timing is off or bad intake valves or cam lobe worn

Oct 03, 2016 | ATVs

1 Answer

Why does my ATV bog down and die when I keep the throttle wide open?


If you are lucky, you might just need new fuel filter and the fuel bowl cleaned out, and maybe new air filter. If not so lucky you need carburetor rebuilt. Backfire is usaully caused by engine running too lean ( too much air for the amount of fuel present). Fuel bowls get gunk in them and the fuel needles and fuel jets get varnished up. The accelerator pump gets worn out gaskets and/or bellows and doesn't give the right amount of fuel mist when you accelerate.

Full Choke is indicative of a motor starved for fuel

Mar 04, 2015 | ATVs

2 Answers

Atv will not start


Is your choke working OK? Even in the summer time a cold engine needs a littel choke...more gas than air to get started. But you don't need to keep the choke on for very long in the summer since the engine warms up faster. You could try some carb cleaner or even taken the carb off and cleaning it good because it sounds definitely like a fuel problem so it was a good idea to check the pump and filter.

Sep 02, 2014 | kawasaki 2005 KFX 700

1 Answer

2004 Quest 500--Starts fine. Will run for about 1/2 hour. Starts to sputter and back fire then stops. I remove plug and its black. Change plug and starts and runs as new. Then it repeats itself again....


The problem would appear to either be with the mixture or with the head. Too rich a mixture (too much fuel) will cause black plugs - when you take them out do the engine and plugs smell of petrol? You need to adjust the carburettor. Mark where the throttle screw is to start with and then slowly screw it (in - I think) to reduce the petrol flow.
The other alternative is that their is a problem in the head. Does the engine blow a lot of blue/black smoke out when it is hot. If yes it means a full engine strip down!

Mar 03, 2011 | RTO 125cc Full Size Adult Quad ATV

2 Answers

The starter will turn the motor over but not start it


johnnymleder, Remove sparkplug from engine. reconnect sparkplug to sparkplug wire. Make sure sparkplug is in contact with engine cylinder head. If you don't see a spark when cranking engine over( in dark garage at night) then something will be wrong with the motor's ignition system and will require servicing it to restore operation. If you see spark then reinstall plug into the engine. Do NOT connect ignition wire!!! Crank engine for 15-25 seconds. Do you smell RAW GASOLINE at the tailpipe??? If NO you may have clogged fuel system. Have FIRE extinguisher handy at ALL times when performing work on any fuel system!!!! Good luck with repair!! 12fixlouie

Jan 12, 2010 | RTO 200cc Full Size Four Wheeler ATV

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