Posted by Fargo on May 06, 2019 at 15:07:49 from (74.209.18.14):
Dear Board: International 504 is used for finish mowing
Starts fine and I start mowing and after 2-5 minutes under load the engine sputters, cutting in and out progressively worse and engine dies about 20 seconds later after it gets real bad. Symptoms similar to like it is not getting Fuel. Wait One minute and it starts right up. Problem repeats.
Here is what I have tried or done:
Someone suggested coils so I replaced that as old one was due for change Ran it without gas cap New Battery Sediment bowl for gas is clean and fuel flow seems good. No fuel filter Gas cap is well vented Cleaned crankcase breather cap in case it was a problem Cleaned oil bath air cleaner. Opened main jet ½ and than ½ more - no change Did not take apart carb, clean, and put in new gaskets yet.
One test I did was to cover the air intake and see if engine stops but engine still runs so does that mean I have an air leak here? As always, thanks for your help.
Something similar happened a long time ago and I noticed carb got loose from manifold, tightened it and all was well.
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