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II was able to do a compression test. Top cylinder 140, bottom cylinder 130. I was not able to do spark plug test, but I did it manually. I am getting a spark. Also I learnt that I was not using the right spark plug (QL78YC), I already order them. We will see if that makes a difference.
I will check compression and also the spark plugs and I will post numbers. I forgot to mention before when It did Start I was able to move the Throttle Do gear and it idle for five minutes and then it died again. The next time it did start again and I just moved the throttle up and it ran fine...
Re do carbs and found out square plastic cover on top of carb was cracked. Replaced it with a new one and now starts with muffs on driveway. took it to the river, it did start but then dies. Somebody told me that I need to adjust the idle but I dont know which one is it?
Got the repair kit for the primer solenoid. Replaced it. Not leaking this time. Got a new ignition key switch. Old was damaged. Tried to start it! Nothing. It will crank but will not fire. Only will fire/start at 3/4 of open throttle. Please help!
I’m trying to get the repair kit but all reviews say that red valve from Sierra does not fit right! I apologize I am not a mechanic I changed the plugs, compression is good on both and I push the key in and crank it, it won’t start and I see gas leaking from red valve. Been on Amazon and on the...
a month ago it was running "fine". it would idle for 5 minutes and then bog down, but it would start fine. I dont know model number, serial number is faded out. I replaced spark plugs too.
Need help, I have a 50hp johnson outboard that only starts at full throttle, as soon as I bring the handle down a bit, it bogs down. It wont start at neutral. I cleaned carbs, new gas/oil, etc. Dont know what else to do. If you guys could help I would really appreciate it.
I had somebody test spark and said it was good. Used a spark tester. Still cranking and does not start. When I pump the gas bulb I can see gas getting to carbs and almost getting out. But bulb does not get hard, maybe just for a couple of seconds but that’s it. I need help.
Thanks for the info. I’m just checking to see that everything is ok. I believe that old gas tank I was using had a crack somewhere and air was getting to carbs. I will buy another one and try again. Lower unit seem good. Will keep you posted.
