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Is there a way to tell if the whole engine needs replaced? It starts running rough then smoke comes out of the rear and it dies. Before it dies it loses power and won't go up a hill. I don't know if a rebuild is an option, looking for answers!
 

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Check oil level and make certain it isn’t fuel diluted

2. Check compression

3. Conduct leakdown test.
 

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it runs fine for 5 months and then starts to smoke?... for how long does it smoke?... 5min?... then another 5 months of "good running"?

you'll need to elaborate a bit more about what is happening, when, and for how long.... otherwise it's a total guessing game....
 

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Pressure test… What does this mean?
 

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I think he means testing fuel pressure. That’s where I would start. i don’t have a manual for your model but maybe a fellow forum member can post the procedure from a factory manual.
 

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If so what were the values?
 
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