i have a 97 150hp johnson faststrike and when i am at idle speed 1000 to 1200 rpms the motor will just rev up to 2500 to 3000 rpms. i can turn the engin off and restart it and its fine but after about 10 sec or so it will happen again. if i turn it off and restart and jump on plane its fine till i slow back down to idle speed. it smells like its running rich and it runs like crap when it does this. had a mecanic adjust the carbs, new power pack, tune up, all that stuff still cant figure it out. had a guy tell me it could be a lenkage problem maby something sticking. or maby it could be the rvo pump that mixes the oil with gas could be bad. it seems to only do this when the motor is warm and it happens every now and then. any sugestions would be appriciated. thanks
Modified by chad26 at 12:17 PM 9/2/2010