Question about 1989 Suzuki RGV 250 K

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Over fueling front cylinder RGV 89

Have since replaced reeds with carbon type and leaned out droping the needle on the carb by one slot any ideas guys ?

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Sometimes changing to carbon reeds is a bad idea if leaning out fuel and using a higher octane fuel. Carbon reeds sometimes get weak after leaning out fuel and this may be your trouble with the leaning idea and using these reeds. So this may be the things to consider on the over fueling try this and let me know.

Posted on Feb 04, 2009

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Hi I recently bought a Kawasaki kdx 80.I've been riding it for about a week and has been fine,but a few days ago I filled the tank with premix 35:1 I think and not saying that's what did it but since then...


Black dry deposits are indicitive of a very rich mixture. On your two stroke, rich is a asset but you can go too rich. It sounds like for some reason you're getting too much fuel.

I think I ran into something like this before on a Kawasaki 80. Check the screws that holds the choke plate inside the carb. They will come loose and allow the choke to close on you while riding the bike. If the screw comes out, it will go into the engine and cause serious damage. If the screws are loose, them out one at a time and put a drop of Loctite 271 (red) on them and reinstall them.

Check the float and the needle and seat to make sure that you don't have any trash in the needle and seat. Also check your tank vent. If the tank builds up vacuum, you could be running out of fuel. Sounds funny that you can be running rich but run out of fuel. The problem is that you run out of fuel so quickly that the carbon from the rich mixture doesn't have time to burn off.

Good Luck
Steve

Aug 25, 2010 | kawasaki KDX 125 Motorcycles

1 Answer

1973 Yamaha RD 250 - The engine RPM's are revvving out of control. Even when I turn the key to the off posistion it takes a while to shut down. The throttle cable seems to be in good working order.


Remove the cylinder heads and de-carbon the heads and top of the pistons. Hot spots of heated carbon buildup are igniting the fuel after the key is off. Install new spark plugs > NGK B8HS. This will fix the continued running problem.

The out of control revs is an air leak problem. Un-carbureted air is making the fuel/air mixure lean. The hose clamp at the front of the carbs may be loose and/or the gaskets from the reeds to the cylinder are no longer keeping a good seal. The carb joints and reed gaskets should be replaced. The gaskets are cheap. The carb joints are expensive. Considering this, you may want to put some gasket sealer on the carb joint mating surfaces and see if they will seal up okay. If the carb joints are cracked, you pretty much have to replace them. Please rate my answer, thanks.
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Aug 23, 2010 | 1973 Yamaha RD 250

1 Answer

Stihl 038 av problem starting saw.


Basics to check for 'No-Start' condition:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression

Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

Dec 03, 2009 | Garden

1 Answer

Won't start not getting fuel


Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

Nov 28, 2009 | Homelite Garden

1 Answer

WON'T START MDL320VBR, SPARK PLUG DOES HAVE A SPARK.


Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression



Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

Nov 22, 2009 | Ryobi Garden

1 Answer

Husqvarna chain saw Model 141 running at high rpm's


You may wnat to inspect the intake manifold/boot that mounts inbetween the cylinder and the carb. Also, the impulse tube that comes from the bottom of the cylinder to the carb manifold or carb itself. Sounds like you are running a lean condition. You need to locate the source very quickly, or continued operation will permantly damage the saw. I have listed a few other things to check.
Please let me know what you find. rwvanlue

Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled (black and carbon deposits)
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression

Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

Nov 13, 2009 | Husqvarna Garden

1 Answer

I have a poulan 2150, won't stay running, why?


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

No-start
Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled (black and carbon deposits)
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression

Nov 13, 2009 | Poulan Garden

1 Answer

Need your help


No-start
Basics to check:
1) Spark plug - brown or dark brown - OK
a) is it carbon or fuel fouled (black and carbon deposits)
b) is there spark

2) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated
3) Check cylinder compression



Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
Chain Saws:
5) check impulse tube and intake boot for cracks or leaks
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
6) replace gaskets/diaphragms
a) use a spray carb cleaner to clean jets, holes, and body of carb
b) fuel pump diaphragm goes against the carb body,
then the gasket towards the outside
c) metering gasket goes against the carb body,
and the diaphragm goes towards the outside

Nov 12, 2009 | Garden

1 Answer

My craftsman leaf blower will not start.


Basics to check:
1) Spark plug - brown or dark brown - OK
- aluminum or silver - piston/cylinder scored
a) is it carbon or fuel fouled
b) is there spark

2) Compression - 125 to 150 psi

3) Muffler remove for inspection
a) exhaust screen clean or plugged
b) inspect cylinder wall/piston as the flywheel is slowly rotated


Fuel starvation - 'lean fuel' condition
Basic things to check:
1) spark plug
2) spark arrestor in muffler
3) fuel lines and tank filter
4) turn adjustment needles out (counterclockwise) 1/4 to 1/2 turn
*if all of the above are OK and/or do not improve performance then:
Remove Carburetor
5) replace gaskets/diaphragms
b) use a spray carb cleaner to clean jets, holes, and body of carb

Oct 30, 2009 | Craftsman 4 Cycle Blower/Vac

1 Answer

Just put a new cylinder and psiton on an Echo


Pin hole in fuel line can cause lean running condition. Also, be SURE the fuel is fresh and 89 octane or higher. Stale fuels can will give you pre-ignition and detonation issues that are nearly impossible to chase down. Ethanol blended or Oxygenated fuels are a NO-NO in high reving 2-strokes!
If fuel type and fuel line check good, go to carb inlet needle settings and then on to carb passagways.

Sep 26, 2009 | Garden

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