Reply To: ’77 OMC 9.9hp hard start warm

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May 24, 2021 at 8:35 am #238850
Don
Participant

    US Member

    Keep in mind that the neutral throttle limiting “lock out” is adjustable on those early models…There is an adjustable throttle stop on the shift linkage, it is slotted and can be moved by loosening two small screws….
    Funny this topic appears now…I noticed this same symptom on the 81 9.9hp that I just revived while at the AOMCI meet this weekend… The engine would start right up hot after sitting for a few minutes with no choke…After I let it sit for more than a half hour, I usually choked it, would start but immediately stall…Took a few pulls with no choke to get it going….I should have tried it with no choke first I guess…