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Pedal hard to press

Tim McCarley

By Tim McCarley
in UTV General Discussion

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Tim McCarley Rookie

Tim McCarley

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I have a 2016 tw400 with the Honda engine. It runs great. Is there a way to get the gas pedal to press easier? It is really stiff. Like the spring in just real stiff. Same thing with pulling out the choke cable. 

Travis Grand Master

Travis

Posted
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First thing i would try is lubing  the ends of both cables with WD40, it will creep down the cable eventually. i would also try disconnecting the cable(s) from what they hook too and move the choke and throttle by hand, and see if if they move easy or not.

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  • 2 weeks later...
Travis Grand Master

Travis

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Do you know the model of the honda engine? But before blaming the carburetor, i would remove the spark plug and look at the electrode end, if it's really dark/black. that would verify the carburetor is running too rich.

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Tim McCarley Rookie

Tim McCarley

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Also, the previous owner put an after market carb on here. It seem to run really rich. You smell gas strongly while riding. What can I adjust to make it better? 

 

The plug is really black. It is a Honda GX 390 engine. 

W B Enthusiast

W B

Posted
Posted

I'm no help with the Honda engine.  Could be the float ora stuck needle valve. Does it have an electric fuel pump. That could be too much pressure for that carb.

Travis Grand Master

Travis

Posted
Posted

It could be a fault in the carb, a lot of the aftermarkets aren't very strict on quality control. the main jet could be oversized a few thousandths and that would affect running.

The only adjustments on these Honda carbs, besides the Idle speed adjustment, is the Mixture screw on the side of it, Some of these have them, some of them don't.

If your carb has this adjustment screw, the proper way to set it is to warm the engine up, and adjust that screw in or out, until the engine reaches it's highest Idle RPM, that's where the engine is getting the most fuel. you can turn the screw in about 1/16 to 1/8 of a turn that will lean the mixture out just a little bit. you may now need to readjust the  idle RPM with the plastic screw on top of the carb.

If it still runs rich after this, most likely there is a issue with the aftermarket carb, i had a problem finding a carb to fit the GX390 on my pressure washer, i finally bought a OEM Honda carb.

 

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