Question about 1985 Honda VT 500 C Shadow

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I had rust in tank after i cleaned tank out the bike is sputtering and back firing how do i clean carb

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1. remove and plug the fuel line
2. remove the throttle slide
3. remove the carb from the back of the motor ( should be 10mm bolt )
4, have a full air compressor to blow air into the carb
5 remove the bottom of the carb ( star head bolts x3 ) make sure that all clean

this link will show you how to disassemble and reassemble your carb

http://www.cmsnl.com/honda-vt500c-shadow-500-1985-usa_model7641/partslist/E++20.html

Posted on Mar 25, 2011

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Posted on Jan 02, 2017

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Cranks no start or fire add gas down throat of carbs and it back fires out pipes and carbs


bikes that sit for long periods of time need there points or electronics pick-ups serviced , rust and aluminum corrosion happens over time on these

miss fires are sure signs of this to mean out of time

and yes the carbs/tank will need a total cleaning out too

Sep 17, 2015 | GAS Motorcycles

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What should I check next? Not getting any error codes, replaced the CKP, MAP, IAC, TP, & ET Sensors. Not sure what I should try next, any suggestions would be appreciated.


Hi Bruce, might have gotten some bad gas. Drain the tank, clean the fuel filter, check the bottom of tank for rust, dirt, water ect. Then ckeck fuel pump pressure, refill tank with a gallon of fresh gas from a different source and take it for a ride. good luck

Mar 28, 2015 | 2006 Harley Davidson FLHRS Road King...

1 Answer

1990 Yamaha FJ1200 dies when throttle is turned. .


vacuum pipes come from between carb and engine to the fuel tap or to each other or both. the vacuum cause the fuel tap to release petrol only when bike is running. ps only 1 tube needed for this the others can be sealed off

Mar 12, 2013 | Motorcycles

1 Answer

I have a 1998 suzuki marauder and it will turn over and fire with starter fluid, but it won't even try without it. There's gas in the lines going to the carbs but I can't figure out why it...


Hi,
has the bike sat for any length of time? If so, the carbs need cleaned. Regardless of what you put in the tank, they'll need to be removed and cleaned. Since the bike is 14 years old, I'd guess they're due.

Also, check the petcock and tank for rust.

GL,
Td

Oct 18, 2012 | Motorcycles

3 Answers

My issue with my bike is constant fuel overflow, even after the bike is shut off fuel keeps running out. A little back history. The bike has sat for 26 years in a shed. I took the carbs apart and cleaned...


Your petcock needs to be rebuilt (if parts available), or replaced, if it does not shut off the fuel. It also may not be saving reserve fuel , if gas is bypassing the ON position. You may also need a new fuel filter .Maybe add an additional in line filter. If you have replaced the float needles and the carbs are still overflowing you probably have a problem with rust in the tank. Have the inside of the tank cleaned or use a rust removal kit on the tank and see if this does not solve the problem. Try to avoid fuel tank liners if possible , they can cause more problems than they solve.

Jul 02, 2010 | 1980 Suzuki Gs 550 L

1 Answer

I ride for about an hour then it dies. it acts like a fuel problem. it will start back up but will die when i give it gas. if i wait about ten minutes, it starts up and rides finee


possibly **** in your tank which has blocked your jets in the carb, clean out tank and fit an in-line fuel filter and clean carbs, imports often did this due to rust inside tank, if its bad take off tank and put in an old bike chain with some oil and shake the **** out of it, flush it out and drop an old speaker magnet inside tank to colect any rust in the future then fill it back up with fuel

Jul 09, 2009 | 1991 Suzuki GSF 400 Bandit

1 Answer

Corrossion in fuel tank . difficult starting.


For the corrosion in the fuel tank get a liquid tank liner. It lines the fuel tank walls then hardens to seal the tank from rust. Google “ kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html

For the hard starting, clean the carburetors. (unfamiliar with your bike, I assume it has carburetors and not fuel injection).
ALWAYS have a fire extinguisher on hand when working on carburetors.
Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetors. There should be a screw on the lower side or bottom of the CARB float bowls. Remove the drain screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carbs to fill with gas. Install new stock NGK spark plugs and try to start the engine. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

FOR EACH CARB > Remove the float bowl and clean the entire CARB with a spray CARB cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the CARB. Remove the idle screw and the air screw on the outside throat of the
CARB and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two adjusters down. Only screw these in until they LIGHTLY seat. Now turn each adjuster one and one half turns outward. Put the rest of the
CARB back together, clean the air filter and install the CARB. Let the float bowl fill then start the engine. This process should get you back on the road.

Please rate this solution. Thanks!

Jun 12, 2009 | 2000 Moto Guzzi Nevada 750 Club

1 Answer

HAVE A 1976 KZ900 Z1 AND IT ISNT GETTIN ANY GAS FROM THE TANK 2 THE CARBS WHEN I CUT THE GAS ON, BUT THE RESERVE WORK. WHAT COULD BE THE PROBLEM


Probably a plugged up filter screen in the gas tank petcock (gas valve). Drain the gas then remove the petcock and clean the wire mesh filter. Your bike is getting old and rust accumulates in the tank. You may want to get a liquid tank liner to lock the rust in place and so the tank won't rust anymore. Install an in-line fuel filter as well. A site for the tank liner is below.

Google kreem fuel tank liner “ or go to www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html

Remove the water trap bowl at the bottom of the petcock, (gas valve). Is there any water or trash in the bowl? Drain a cup of gas from the tank. Is there any water or trash in the cup? Dump it, clean it and re-mount it, ( not all bikes have a water trap bowl ).

Drain the carburetor. There should be a screw on the lower side of the carb float bowl. Remove the screw then replace it after the fuel drains. Turn the gas back on and wait a minute for the carb to fill with gas. If the bike doesn't start and run properly then shut off the gas and remove the carburetor from the engine.

Remove the float bowl and clean the entire carb with a spray carb cleaner from the auto parts store. Wear protective goggles to avoid getting spray in your eyes. Spray into all the little airways and fittings in the carb. Remove the idle screw and the air screw on the outside throat of the
carb and spray into the screw holes as well.
< < READ CLOSELY > >
Be sure to put these two screws back in the same hole they came out of. IMPORTANT > do not tighten these two screws down. Only screw these in until they LIGHTLY seat. Now turn each screw one and one half turns outward. Put the rest of the
carb back together, clean the air filter and install the carb. Let the float bowl fill then start the engine. This process should get you back on the road.

Please rate this solution. Thanks!

Apr 21, 2009 | kawasaki Z1 Motorcycles

1 Answer

2003 honda crf230f will not start.bike worked fine last fall.i put a new spark plug in it,cleaned the carburater,cleaned the air filter & changed the oil.it seems to have good spark but just keeps cranking...


IF you have a battery get a new one ; put in new gas ; super; dsid you ajest any screws on carb. You tight need to run a prime tank right to your carb to prime it; and then hook your tank backup new gas lines to your carb. Now break out with the WD40 to spray all switches for rust.

Mar 23, 2009 | 2003 Honda CRF 230 F

1 Answer

Rust


it sounds like you have something in your tank that is covering your fuel outlet, it may be a piece of rust, or if you had it lined maybe some of the lining (aren't they usually a rubber compound?) has flaked off and is floating around. Drain the tank, remove it and see if there is any foreign objects in there. (this is just a guess though, I may be completely off here)

Nov 20, 2008 | 1999 Suzuki RGV 150 Megatone

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