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1999 25hp johnson

newfy123

New member
i have a 1999 25hp johnson motor and when i used it last it had some problems. when in idle and slow speed it works fine but when i give it some gas the engine revs up and down and when i trottle back it works fine. any suggestions.
 
fuel problem, good gas, check carbs, check fuel pump.
do comp check, spark check, and then did the fuel checks.
 
engine was checked by a mech when i bought it ,new plugs,good spark,clean carb,i was wondering if it could be the blade ? new to this and was wondering if there is anyway to check.
 
I agree with coueytwo...it sounds like a fuel problem. How old is the fuel? Is it hard to start? When was the carb cleaned and who did it?
 
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