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east central ND | Back in my green dealer days, there was a pip on mufflers , 50 or 60 series, cannot remember. The aspirator tube in the muffler was put in wrong.
Take the aspirator hose off and rev the engine up, see if is sucking like it should. If I’d does have good suction, take the air tubes in front of air filter apart and see if any blockages by venturies. | |
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Pre Cleaners ... Why aren’t they ? On combines