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Have a 2008 YDRA Yamaha gas golf cart - How to tune engine.

Customer Question
Have a 2008 YDRA...

Have a 2008 YDRA Yamaha gas golf cart - How to tune engine.

Mechanic's Assistant: Thanks. Can you give me any more details about your issue?

Sorry hit carriage return - Running against motor, motor backfires occasionally - Is carby adjustment too rich.

Submitted: 2 years ago.Category: Small Engine
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Answered in 34 minutes by:
2/24/2016
Technician: Curtis B., Technician replied 2 years ago
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 30,978
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert
Verified

I doubt carburetor will cause backfire, I would want to check the valve clearance (lash) .004 on intake and exhaust, with piston at top dead cylinder. Spark plugs at .028 inch gap.

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Customer reply replied 2 years ago
OK, anyway how do we tune engine, carburetor mainly, find idle speed golf cart that auto stops with no accelerator pedal.
Technician: Curtis B., Technician replied 2 years ago

Carburetor has no adjustment other than the idle screw. Which is screwed in and out and basicly serves o purpose on golf cart, as it kills when it comes to back to idle position. As I said before, your tune up should consist of valve adjustment and a new spark plug.

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Technician: Curtis B., Technician replied 2 years ago

I doubt carburetor will cause backfire, I would want to check the valve clearance (lash) .004 on intake and exhaust, with piston at top dead cylinder. Spark plugs at .028 inch gap.

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Customer reply replied 2 years ago
Thank you
Technician: Curtis B., Technician replied 2 years ago

Thank you. please accept and rate to close.

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Technician: Curtis B., Technician replied 2 years ago

Did you get to check the valves? Please accept to close.

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Customer reply replied 2 years ago
Did full twelve month service, changed spark plug 28 thou - not prepared to infiltrate engine yet. now seeing how it goes.
Technician: Curtis B., Technician replied 2 years ago

!! OK>

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Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

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