Johnson 1997 150 hp
I purchased the boat and motor new in 97. The first problem was over oiling, I would burn 20 gallons of gas and check my 2 gallon oil tank and it would be almost gone. They attempted 3 times to fix this, replaced all the parts remotely associated with the oil injection system. It still was not right so they replaced the pak. The Idle was way too high from day one (over 1200 rpms)which was never resolved. and the final straw was a problem throttling over 2000 rpms would cause the motor to sputter out.
Now maybe there is someone out there that could have fixed it but the folks at the dealer and OMC could not after 6 tries and a season later, that was enough for me to start a letter writing / phone call campaign till I got what I paid for... a new engine that actually runs. So now I have a 97 boat with a 99 motor, the motor is excellent, it runs beautiful, decent on fuel and has a lot more power than the 97 even though it is essentially the same motor except this one is grey and the 97 was white. I know there are plenty of 97 150hp's out there that run great, i think i just had a lemon. Oh yeah - decarb that motor! this is from the mouth of the people that built your engine.