My 2006 EZGO TXT has developed this super annoying habit of backfiring every time I let go of the gas pedal. It’s not just a minor pop; it’s LOUD! What can I do about this?
Response
You need to try adjusting the valve lash. Once adjusted to the correct amount, the backfiring should stop.
Solutions that worked for the users
| Solution | Users Who Found Success | Personal Experience | Estimated Cost (USD) | Time Needed (Minutes) |
|---|---|---|---|---|
| Valve Lash Adjustment | 1 | Adjusted valve lash and it worked | $0 | 15-20 |
| Throttle Cable and Micro Switch | 1 | Adjusted throttle and micro switch | $0 | 15-20 |
Symptoms
- Cart backfires loudly when letting go of the gas
- Cart emits popping noises after releasing the gas pedal
Possible Causes
- Throttle cable misalignment
- Incorrect valve lash settings
- Faulty fuel cut-off solenoid
- Air leaks in the exhaust system
Solutions that Worked
1. Valve Lash Adjustment
What I Did:
Adjusted the valve lash to .004 inches.
Outcome:
The cart stopped backfiring.
Personal Experience:
After spending some time adjusting the valve lash, the backfiring issue was completely resolved.
Estimated Cost:
$0
Time Needed:
15-20 minutes
Steps:
- Locate the Valve Cover: Find the valve cover on your engine, usually secured with bolts or screws.
- Remove the Valve Cover: Use a socket wrench to remove the bolts and lift off the valve cover.
- Clean the Area: Wipe down any dirt or debris around the valves.
- Measure with Feeler Gauge: Insert a feeler gauge between the valve and rocker arm to measure the valve lash.
- Adjust the Valve Lash: Use a wrench and screwdriver to adjust the valve lash to .004 inches.
- Double-Check: Re-measure with the feeler gauge to ensure the adjustment is accurate.
- Replace the Valve Cover: Secure the valve cover back in place.
Expert Tip:
Always double-check your adjustments with the feeler gauge. Incorrect valve lash can lead to a host of other engine problems.
Handy Tip:
If you’re not comfortable doing this yourself, it’s a quick job for any mechanic familiar with golf carts.
2. Throttle Cable and Micro Switch Adjustment
What I Did:
Adjusted the throttle cable and micro switch.
Outcome:
The cart stopped backfiring.
Personal Experience:
After making these adjustments, the cart ran smoothly and the backfiring ceased.
Estimated Cost:
$0
Time Needed:
15-20 minutes
Steps:
- Identify the Components: Locate the throttle cable and micro switch near the carburetor.
- Inspect for Wear: Check the throttle cable for any signs of wear or fraying.
- Loosen the Adjusting Nut: Loosen the nut on the throttle cable.
- Adjust the Throttle Cable: Make sure it’s neither too tight nor too loose.
- Test the Micro Switch: Press it manually to ensure it clicks.
- Align the Micro Switch: Make sure it’s properly aligned with the throttle lever.
- Tighten the Adjusting Nut: Secure the throttle cable back in place.
- Test Drive: Take a short drive to ensure the issue is resolved.
Expert Tip:
Improper throttle cable tension can lead to other issues like poor acceleration. Make sure it’s just right.
Handy Tip:
Use a silicone-based lubricant on the throttle cable for smoother operation.
Golf Cart Models Where This Worked
- 2006 EZGO TXT with 295 Robin engine
- Old EZGO Workhorse with a new B&S Vanguard 16 HP engine
Extra tips
- Air Leaks: Sometimes, an air leak in the exhaust system can also cause backfiring. Make sure to check the exhaust gaskets and seals.
- Fuel Cut-Off Solenoid: This is often an overlooked component. If your cart has a fuel cut-off solenoid in the carburetor, make sure it’s functioning correctly.