04 responce 8x8 vanguard twin 18 hp

[responce]

spark plugs carbon up all the time.changed the plugs and they still carbon up. choke works fine, any othert recommendations.....thanks responce

[curtisbyrne]

carb adjustment to rich,air cleaner clogged or possibly low compression

[responce]

whats the adjustment procedure on the carb

[bigfootbob]

Had the same problem with mine. Its very important to use the champion plugs unfortunately it was a while ago and i cant remember the code. Ngk dont work they foul up quickly. I had my doubts thinking a plug is a plug but when i put the champions in the fouling stopped. I think i found that information here or on richards relics for the right champion plug

[curtisbyrne]

https://drive.google.com/file/d/0B6dar38RLIxAVDFfSlhXYnN2V3M/view

page 22 (rc14yc or rc12yc) carb adjustment should be there too

[mowbizz]

I have no info for your carb problem but you are spelling “response” incorrectly...
Sorry, don’t mean any disrespect.

[curtisbyrne]

this is from a website on carb specs
Engine should be at operating temperature when carb adjustments are made.

Locate the idle mixture screw and turn it clockwise until the needle lightly touches the seat. Then, turn the screw counterclockwise 1-1/2 turns.

If your carburetor has a main jet adjustment screw at the base of the float bowl, turn the screw clockwise until you feel it just touch the seat inside the emulsion tube. Then, turn the screw counterclockwise 1 to 1-1/2 turns. Replace the air cleaner assembly and start the engine for final carburetor adjustments.

Run the engine for five minutes at half throttle to bring it to its operating temperature. Then, turn the idle mixture screw slowly clockwise until the engine begins to slow. Turn the screw in the opposite direction until the engine again begins to slow . Finally, turn the screw back to the midpoint.

With the engine running at idle , hold the throttle lever against the idle speed screw to bring the engine speed to "true idle." Then, repeat the idle mixture screw adjustments from Step 4 to fine-tune the mixture .
HIGH SPEED MIXTURE
Run the engine for five minutes at half throttle to bring it to its operating temperature. Then, stop the engine.

Locate the high speed mixture screw and turn it clockwise until the needle just touches the seat. Then turn the screw counterclockwise 1-1/4 to 1-1/2 turns.

Restart the engine and set the throttle position to HIGH or FAST . Turn the high speed or main jet screw clockwise until the engine begins to slow. Then, turn the screw the other way until the engine begins to slow. Turn the screw back to the midpoint .

Once adjusted, check engine acceleration by moving the throttle from idle to fast. The engine should accelerate smoothly. If necessary, readjust mixture screws.

[responce]

did the ajustments…..used a tach,made ajustments….works like a charm.....thanks,

[curtisbyrne]

no problem. good to hear!

[john swenson]

that curtis is a sharp cookie !! and a nice fellow . j.b.