Question about 2004 Honda VTX 1800

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Dumping to much fuel into front cyclinder

Bike will not start have a ton of fuel dumoing out of exhaust pipe

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  • david7268 Feb 14, 2009

    Same problem with mine. Just changed the ignition coils because those were bad, and now this! WOW.

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  • 16 Answers

It could been dirt in caburettor so it owerflow and the engine get full of fuel and the fuel coming out of the exos.
The are the float spindle som not close , it can happening when dirt are coming in the carburettor float chamber. This are under the caburettor.
You must clean they so the float spindle can close. If the engine get full of fuel , it could bee fire in the engine.

Posted on Dec 03, 2008

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Posted on Jan 02, 2017

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1 Answer

Any thoughts on 2006 Virago 250 with gas leaking out of right exhaust pipe?


Hi, Andrew and the usual suspects are:
1. Damaged or restricted fuel tank venting system.
2. Loose float bowl screws.
3. Damaged float bowl o-ring.
4. improper fuel level in the float bowl.
5. Worn or dirty inlet valve or seat.
6. Damaged or leaking float assembly.
7. Particle contamination in inlet fitting cavity.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have nice a day.
Gas coming out of exhaust help
Fule Dumping out of exhaust will not start
Yamaha VIRAGO XV250S Owner Manual
OEM parts for Yamaha
Yamaha XV250G Supplementary Service Manual

May 05, 2013 | 2006 Yamaha Virago 250

1 Answer

Hesitates and backfires


hi the air box and exhaust restrict the air movement through the cyclinders to match the jets in the carbs. i have bikes that you can remove baffles or airbox with no problem, others are so finely tunes that it is impossible to run the bike without the restriction. the easy option would be to get a jet and air filter kit. then if you need to restrict air flow any (hopefully you wont need to) you could very slightly raise the inlet/outlet valve gaps to the maximum amount which will open the valves for a slightly shorter time. you could also restrict the exhaust by using large washers on the exhaust gaskets. similar to those used to restrict a bike.

Mar 07, 2013 | Motorcycles

1 Answer

Front cylinder dumping raw fuel, exits under exhaust pipe. Cylinder not firing.


pull the vacuum line from the regulator and turn the key on and see if gas drips or sprays out from the nipple on the regulator if so that's your problem the fuel is going threw the line into the intake port

Aug 05, 2012 | Cars & Trucks

1 Answer

Hello i have a aprillia sr50 and i brought it from brand new i ran the bike in for 300 miles and then i fully de-restricted the bike and placed a de-restricted exhaust on and a bigger jet and had the...


Hi,
That looks like a REED VALVE leak.
If your 2 stroke kept coming out from the carb air intake and as you say that sometimes a back fire in the exhaust.

Check these....
  • Reed valve
  • Crank oil seal ( there might be air leak in the block )
  • Exhaust pipe ( might be already blocked )

Hope that helps you out!

Aug 29, 2011 | 2011 Aprilia SR 50 R Factory

1 Answer

99 400 sport atv seems like it revs way to high at high speeds i dont dare push it past 1/2 throttle ( 400 l ported shaved carbon reeds stock carb aftermarket pipe stock tire) when i release and punch...


Is it still exhausting a lot of raw fuel? I assume it is.
This is a two-stroke, right? If so, the original pipe was designed with a restriction (the pipe gets much smaller) at the end of the expansion chamber which caused a backwave from each combustion chamber explosion. The length of the pipe was precisely calculated to cause the backwave to arrive at the cylinder at the bottom of the piston stroke.......when both the intake port and exhaust port are open. The backwave keeps the fuel-air mixture from going out the exhaust pipe. If the aftermarket pipe is not designed right, a lot of raw unburned fuel and two-stroke oil will be dripping out of the pipe and your power and fuel efficiency will drop. In that case you might be better off with your original pipe. It was designed to give you good power and efficiency for that engine.
When you say the piston was hitting the case, do you mean it was hitting the head? You mentioned "shaved". Do you mean you shaved the head to increase compression? If so, that could cause the piston to hit the head. You may have to put on a thicker or double head gasket.
If you think it is revving too high you might put on a bigger countershaft sprocket, or a smaller rear sprocket. That might increase your speed and would definitely drop the RPMs.
good luck,
genetuck

Jan 15, 2011 | Polaris Scrambler Men's Mountain Bike

1 Answer

Front pipe gets red hot as soon as the bike stars up


Muffler or baffle obstructed or something in the exhaust is stopping the flow.dom not run this engine it will burn-up.You may be using too high an octane fuel also.

Oct 01, 2009 | 2005 Suzuki RM-Z 450

1 Answer

Carburator adjusting or no gas


Hi and welcome to FixYa,

Initially, if there is spark on the plug of the front cylinder, then it would be a fuel issue. Pls try:
  • Rig a fuel bottle to replace the fuel tank;
  • Remove the airbox assembly to expose the carb;
  • Start/run the bike, spray carb cleaner on the open carb;
  • note the RPM or sound of engine. Determine if front cylinder will fire even erratically. You could also try the exhaust pipe if it warms up (pls be careful might be overly hot);
  • rev the bike then cover the carb mouth of the front cylinder with the palm of your hand;
  • there should be a strong suction indicating that vacuum is created when on the intake stroke and intake valves are opening;
  • the palm of your hand should be wet with fuel, if not carb issue;
  • might require a rebuilt.
Good luck and Thank you for using FixYa. Happy New Year.

Jan 01, 2009 | 1986 Honda VT 500 C Shadow

1 Answer

Engine filling up with gas


there is no way for fuel to get passed the rings right? So if you filled the head with fuel, it would just work its way down the exhaust pipe and out the back, just like its doing. The only way of getting fuel into the sump is; if you have seriously bad rings (it would be burning oil) OR if its getting through the breather system. I don't even think if the injectors were on full-time, it still wouldn't get into the sump... very strange. Are you sure its not coolant? A serious coolant leak can be completely unnoticeable from the outside, but catastrophic to the inside. __________________

Nov 10, 2008 | 2001 VOR Mx 400

1 Answer

Engine filling up with gas


there is no way for fuel to get passed the rings right? So if you filled the head with fuel, it would just work its way down the exhaust pipe and out the back, just like its doing. The only way of getting fuel into the sump is; if you have seriously bad rings (it would be burning oil) OR if its getting through the breather system. I don't even think if the injectors were on full-time, it still wouldn't get into the sump... very strange. Are you sure its not coolant? A serious coolant leak can be completely unnoticeable from the outside, but catastrophic to the inside. __________________

Nov 10, 2008 | 2005 TN'G Verona 150

1 Answer

Engine filling up with gas


which I fixed. It all started when the bike died on the road. WhenI got it home to try and start it the starter would turn over at first but eventually it would not despite a charged battery. I then realized the engine was filling with gas everytime I tried to turn it over fuel was leaking from thelower exhaust pipe and the site glass was void of any air. I opened up the drain plug and a ton of oil and gas came out. I refilled the crankcase and the motor at first turned over until I realized gas was again leaking from the lower exhaust pipe. I disconnected the fuel lines and electrical under the tank and hit the starter switch again. The motor started and ran for a few moments before depleting the fuel that was left in the lines. That told me I have spark but for some reason gas was gushing into the cylinders at a high rate flooding the engine. I made no more attempts to start the motor out of concern doing that would damage it.,there is no way for fuel to get passed the rings right? So if you filled the head with fuel, it would just work its way down the exhaust pipe and out the back, just like its doing. The only way of getting fuel into the sump is; if you have seriously bad rings (it would be burning oil) OR if its getting through the breather system. I don't even think if the injectors were on full-time, it still wouldn't get into the sump... very strange. Are you sure its not coolant? A serious coolant leak can be completely unnoticeable from the outside, but catastrophic to the inside. __________________,,,

Nov 10, 2008 | 2002 Ducati MH900e

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