Question about Honda 8 HP Engine

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Honda gx240 backfiring

Motor sat for almost 2 years .. flushed fuel tank and lines. broke down carb completely cleaned and blew out. motor starts fine now and idols fine .. hit the gas and let off and its backfiring pretty good.. timing, valve, ??? Any ideas would be great.. Thanks in advance... Joe

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6ya6ya
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Posted on Jan 02, 2017

  • 1383 Answers

SOURCE: pressure washer stalls

Pressure washers work under very dirty conditions, no wonder they encounter engine problems. Here are a few pointers from a former pressure pump tech. The unloader is a source of engine overloading however this can easily be checked with a pressure guage attached to the gun with a tee fitting having the guage and the normal tip used for the unit. The pressure should never rise over rated pressure. The pressure should drop considrably when trigger is released. The life of the pump and engine can be increased by setting max pressure to 75% of rating. Most engine problems are from following conditions:
Leaking or misadjusted valves; clogged muffer /spark arrester; weak spark coil that is about to fail completely; kill switch/oil sensor wiring and or sensor mal function; gas cap not venting properly causing vacuum in tank and wet or dirty air filter.
All these problems easy to check, fastest repair is to disconnect oil sensor wire to check oil safety system. Then temp replace coil with known good coil. Loosen muffer bolts to check for clogged muffler. Temp run engine without gas cap to check for vacuum. Finally if everything fails, run the engine with carb cleaner spraying directly into the intake. If the engine continues to run with carb cleaner then the problem is fuel delivey and faulty carb. enjoy

Posted on Dec 01, 2008

  • 10865 Answers

SOURCE: Honda 8HP GX240 willnot start after working fine.

Your carberator has crud, or rust, or glaze in it. The carberator will have to be removed, soaked in cleaner for three hours and then rebuilt using the proper carberator kit from any auto parts store. If you need to hire this done expect to pay about 35 dollars.

Posted on May 20, 2009

  • 21 Answers

SOURCE: engine will not start,almost sounds like it is

Pour a large amount of carb cleaner into the gas tank
With choke on full, pull cord often to work carb cleaner into carb and then let it sit for a day or four.
Your carb is dirty for sure.
The venturi and jets are so small on these carbs that they are easily clogged with gunk from old gas

Posted on Aug 29, 2010

  • 1 Answer

SOURCE: Honda gx160 starts briefly, then dies

if inlet valve is breaking always wat is d major problem

Posted on Feb 04, 2011

  • 10 Answers

SOURCE: Honda 8hp motor only starts with quick-start fluid

if you have gas to carb rebuild carb or relace

Posted on Jul 07, 2012

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Will not start


Hi, Richard if your bike has been idle for months or years and does not want to start you will have to deal with a few remedies:
1. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
2. Remove your air cleaner and clean and re-oil per Mfg. specifications.
3. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
4. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
5. Replace spark plug with a new one and check for spark.
Good luck and have a nice day.

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John Deere 265 starting problem


To start ensure that is not a carb problem, and that the engine is not chocking because of incorrect carburetor settings. The carb should also taken apart and cleaned.

Try also running the engine without fuel tank cap, if engine runs fine replace the tank cap.

if carburetor, fuel filter, tank and fuel lines are ok it may be a faulty fuel pump failing. To test the fuel pump, insert a pressure gauge tool like this in the lines out from fuel pump.

Regards.

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1 Answer

Engine will crank but want rev up charging system metered at 13.7 volts


Hi, Martie if your bike has been idle for months or years and does not want to start you will have to deal with a few remedies:
1. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
2. Remove your air cleaner and clean and re-oil per Mfg. specifications.
3. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
4. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
5. Replace spark plug with a new one and check for spark.
Good luck and have a nice day.

Nov 01, 2015 | Motorcycles

1 Answer

My cross country has sat for three years, fuel turned to varnish, what can I do to resolve this?


Hi, Dennis if your bike has been idle for months or years and does not want to start you will have to deal with a few remedies:
1. Drain and flush fuel tank, google " how to clean a motorcycle gas tank" find a couple forums to view the different options available.
2. Remove your air cleaner and clean and re-oil per Mfg. specifications.
3. Remove the carburetor, disassemble and decontaminate with a carb dip or if you have EFI remove injectors and clean with carb spray and compressed air
4. Remove fuel valve and filter disassemble and clean as necessary, remove fuel lines and replace with new ones.
5. Replace spark plug with a new one and check for spark.
For more information about your question please visit the website below. Good luck and have a nice day.
DOWNLOAD 2011 Victory Cross Country

Aug 04, 2015 | 2011 Victory Cross Country

1 Answer

My hyundai Excel Sprint has sat for four years and I think the fuel has turned to jelly, how do I fix this problem. Do I have to remove the fuel tank and replace?


Dude lot of work but drop the tank clean it out don't forget to clean the fuel pump out and new filters new fuel and keek it jumped to another car until she starts ,just did same for hj holden but I had too replace take as it is a metal tank and it rusted out, if you have time let water soak in tank once out for about 12hours then rinse and dry completely by standing for 12hours all holes open good luck

Apr 16, 2013 | Cars & Trucks

1 Answer

My bike sat in garage for about a year without being started.I fired it up and now it runs rough and motor hesitates when shifting. Ifilled tank with fresh gas


You will need to clean the complete fuel system to include the carb. After time the fuel turns to varnish and will plug up the jets in the carb. Remove the carb and clean it throughly that should fix your problem.

Nov 05, 2010 | 2003 Honda VTX 1300 Retro

1 Answer

Bike has sat up for a year or so,wont start,cranks fine,has spark,maybe bad fuel ?


If no fuel stabilizer was added while the bike sat for a year or so.
It is most likely bad fuel with gum deposits.
This can can create some problematic symptoms for you.

It is vital the bad fuel to be cleared from tank/lines and carbs.
You may need the fuel system cleaned as the gum deposits can cause major headaches in the carbs and jets. If the system is not cleaned and even after you get the bike running, you could be miles away and have the fuel fowl jets/injectors, causing shut down.

Check the spark plugs carefully. Oil on the plugs may just need cleaning. Once you get the bike running the oil should burn off if the rings are still in good shape.

Motor needs clean Air, Clean Gas and a hot spark.

Good luck!

Oct 04, 2009 | 1995 Yamaha XV 535 Virago DX

1 Answer

Won't start after sitting for years. Replaced battery. Turns over but will not start


What about fuel? Was fuel in the tank when the car was parked years ago? If so, the system has to be flushed and cleaned out, from and including the gas tank to the carb or injectors (all fuel lines). Have you checked for fuel and spark?

Apr 17, 2009 | 1985 Nissan 300ZX

1 Answer

My poulan wont start any suggestions


Plugged fuel line or carb due to sitting with fuel in tank. Drain tank and back flush line, changing filter if there is one. Inject some compressed air into fuel line from carb.jet screw hole, thus blowing out line toward tank. May have to also use some carb.cleaner in same area.
Prevention: Always shut off fuel line and run carb dry before storing unit. If storing a long time, remove all fuel as gasoline will not keep long, esp. in the carb.
Best wishes!

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1 Answer

95 4runner


check your asd relay or fuel pump relay

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