Royce Brown
Seaman Apprentice
- Joined
- Jul 10, 2018
- Messages
- 37
I purchased a 1976 6HP Johnson outboard which was in very good condition, brand new fuel pump, new fuel lines, carb rebuilt with proper kit & seals, clean as a whistle and when the gentlemen who sold it to me started it in a barrel it ran fantastic, started on the 2nd pull after sitting in his motor repair garage for approx 6 months. I ran it both neutral and in gear and it ran very well, no bogging down or any signs of poor performance. Restarted it multiple times after changing the lower unit oil with him (he wanted to show me exactly how it's done since I'm not real experienced in old outboards). Motor restarted on 1/2 a pull after changing lower unit oil.
I carefully laid the motor on its side (careful not to snap off the gear shift handle) when transporting it home for a 1.5 hour drive. I attach motor to boat, prime gas pump bulb until stiff and it refuses to start. I tested the plugs and they seemed to be sparking but only when the tiller throttle handle was in what seemed to be an exact certain position (which is an entire different issue, appears to be a bushing missing at the bottom of the horizontal throttle gear which causes some slippage between the 2 gears but I can work with that).
Eventually after removing the old plugs (J6C's which looked pretty brownish, not sure how used plugs should look) they were a bit wet so I assumed I flooded the cylinders from pulling the cord too many times so I removed both plugs and disconnected gas line and pulled the cord a few times trying to clear out any petrol from the system as there was a small amount of fuel leaking from the carb choke hole. When I pulled the cord with no plugs/fuel it made a completely different sound like it really wanted to turn over.
I cleaned the plugs with some ether and blew them dry with an air compressor, reinstall and with a small amount of playing with the choke amount and start position (I believe the correct start position is the when the roller is just touching the piece the opens up carb to increase throttle) I was able to start and run it for an hour, very nice performance. I could restart it after letting it rest for 30-45 minutes while I was drift fishing. Everything was great.
The next morning when I attempt to start it simply refuses to turn over. On the first or 2nd pull it sounded like it nearly turned over but could never get it to start. I repeated the above steps (remove plugs, clean, dry etc) and eventually was able to start motor and again it ran great for a couple hours. The next morning almost starts on a few early pulls but then just refuses.
I purchased some new J6C plugs along with some J4C's having read that both can work, and then I read that J8C's should be used. I've gapped the plugs from .20-.25 and no real difference other than I was able to eventually start and run on the J4C's, but still refused to start he next morning.
What am I missing here? What am I doing wrong? Are J8C's worth trying? Once the motor starts it runs great, just cannot get it to start consistently. Running 50:1 fresh gas, I know 100% fuel is reaching the carb but I'm at a loss at this point. Any advise/help/suggestions would be greatly appreciated.
Cheers, Royce
I carefully laid the motor on its side (careful not to snap off the gear shift handle) when transporting it home for a 1.5 hour drive. I attach motor to boat, prime gas pump bulb until stiff and it refuses to start. I tested the plugs and they seemed to be sparking but only when the tiller throttle handle was in what seemed to be an exact certain position (which is an entire different issue, appears to be a bushing missing at the bottom of the horizontal throttle gear which causes some slippage between the 2 gears but I can work with that).
Eventually after removing the old plugs (J6C's which looked pretty brownish, not sure how used plugs should look) they were a bit wet so I assumed I flooded the cylinders from pulling the cord too many times so I removed both plugs and disconnected gas line and pulled the cord a few times trying to clear out any petrol from the system as there was a small amount of fuel leaking from the carb choke hole. When I pulled the cord with no plugs/fuel it made a completely different sound like it really wanted to turn over.
I cleaned the plugs with some ether and blew them dry with an air compressor, reinstall and with a small amount of playing with the choke amount and start position (I believe the correct start position is the when the roller is just touching the piece the opens up carb to increase throttle) I was able to start and run it for an hour, very nice performance. I could restart it after letting it rest for 30-45 minutes while I was drift fishing. Everything was great.
The next morning when I attempt to start it simply refuses to turn over. On the first or 2nd pull it sounded like it nearly turned over but could never get it to start. I repeated the above steps (remove plugs, clean, dry etc) and eventually was able to start motor and again it ran great for a couple hours. The next morning almost starts on a few early pulls but then just refuses.
I purchased some new J6C plugs along with some J4C's having read that both can work, and then I read that J8C's should be used. I've gapped the plugs from .20-.25 and no real difference other than I was able to eventually start and run on the J4C's, but still refused to start he next morning.
What am I missing here? What am I doing wrong? Are J8C's worth trying? Once the motor starts it runs great, just cannot get it to start consistently. Running 50:1 fresh gas, I know 100% fuel is reaching the carb but I'm at a loss at this point. Any advise/help/suggestions would be greatly appreciated.
Cheers, Royce
