Troy Bilt pressure washer runs when tilted, not when flat


Old 07-21-14, 04:52 PM
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Troy Bilt pressure washer runs when tilted, not when flat

I have a strange problem.

I have a troy bilt pressure washer, it would not run. I put fresh gas in it, took the carb off and dipped it in the parts cleaner, got it all re-assembled and it runs roughly after it starts.

Now, if I tilt it backwards about 50-60 degrees it runs great. If I have it sitting flat on the ground, it runs very rough

Any ideas why the heck it would to this?

- The spark plug sparks when held against the block
- The carb is cleaned, and the gas is new. The flow from the tank to the carb is good
- New air filter
- Spark plug is not fouled

I'm stumped.
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Old 07-21-14, 06:55 PM
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It sounds like you have a carburetor problem. I'd start by looking at the float and it's needle valve.

It would also help if you provided the engine's information: brand, model number...
Old 07-21-14, 07:28 PM
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You might have gotten some bad gas which resulted in some water in the carb bowl, water moves out of the way when tilted, also while it is running spray/dribble some carb/brake parts cleaner behind the carb along the intake, if the engine tempo changes you have an air leak and can take the appropriate action. have a good one. Geo

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