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This 90 horse Johnson runs great except at idle. RPM steady at 700, then stumbles and stalls. Starts right back up smooth for about 10 seconds then stalls again. (And where does one find an idle screw adjustment tool for that special screw head?)
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Run a compression test, check for spark to all cylinders, probably need to remove and clean carbs. -
off thread but are you really a Master Chief? I am ,retired 1975.Comment
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Yes, I am "A Real Master Chief", not one of those E9's...How about you? Retired 1994.Comment
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Compression test was good. Not much to these Carbs to clean. They seem to bolt up to an intermediate body. Any ideas on how to get the special idle screw adjustment driver?Comment
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If you are talking about the adjustment screw driver, you can purchase at many tool stores.
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