[COLOH2OFWLR]

Didn't know where to post this.

I am in search/need of vintage motor repair. I have a 1966 Johnson 20 horse that needs some tune up work. I acquired this as a basket case, and have replaced a bunch of parts including the points & condensers. I can get it to run by tweaking the carb. After a rough warm-up, I can then get it adjusted to run smoothly throughout the throttle range. However, if I then leave it set overnight...it won't even start! I am not certain the points are correctly timed as I don't have any means of adjusting the timing other than trial and error. At this point I have reached my limit and am ready to turn it over to someone that has a clue what to do. However, I can't find anyone that will work on that old of an engine. Hopefully someone here, "...knows a guy." Any help is much appreciated.

 

[born2fsh1]

Didn't know where to post this.

I am in search/need of vintage motor repair. I have a 1966 Johnson 20 horse that needs some tune up work. I acquired this as a basket case, and have replaced a bunch of parts including the points & condensers. I can get it to run by tweaking the carb. After a rough warm-up, I can then get it adjusted to run smoothly throughout the throttle range. However, if I then leave it set overnight...it won't even start! I am not certain the points are correctly timed as I don't have any means of adjusting the timing other than trial and error. At this point I have reached my limit and am ready to turn it over to someone that has a clue what to do. However, I can't find anyone that will work on that old of an engine. Hopefully someone here, "...knows a guy." Any help is much appreciated.

Does the motor have a fuel shut off? Sounds like the motor floods out overnight. If the motor does have a fuel shut off, turn the fuel shut off to the off position while running and let it run out of gas when you finish with it. I've worked on a few of the old motors. Try playing with the point gap, new condenser? , spark plug gap? wire for plug new? new coil?

 

[TthePikester]

Didn't know where to post this.

I am in search/need of vintage motor repair. I have a 1966 Johnson 20 horse that needs some tune up work. I acquired this as a basket case, and have replaced a bunch of parts including the points & condensers. I can get it to run by tweaking the carb. After a rough warm-up, I can then get it adjusted to run smoothly throughout the throttle range. However, if I then leave it set overnight...it won't even start! I am not certain the points are correctly timed as I don't have any means of adjusting the timing other than trial and error. At this point I have reached my limit and am ready to turn it over to someone that has a clue what to do. However, I can't find anyone that will work on that old of an engine. Hopefully someone here, "...knows a guy." Any help is much appreciated.

Hey bud, here is a thread from a little while back with some good info for ya. Good luck!

2-Stroke Outboard repair referal

Does anyone have a person/place they would suggest to repair an early 1980's merc 20hp 2 stroke? I think it will probably need new rings and honing of the cylinder walls but not positive. Could be western slope or Denver metro area or anywhere in between. I have heard of a lot of dishonest...

www.coloradofisherman.com

 

[COLOH2OFWLR]

Thanks for the replies! I'll be making some phone calls.

 

[TthePikester]

No problem bud. I have a "57" Johnson 10hp I used on my old boat that ran when I parked it...LOL...going to restore it after I retire. I have an original decal set for it so it should just need seals , impellor and paint! Good luck with yours!

 

[GRABABREWSKI]

 

[slayerfish]

BWAHAHAAHAHA!

 

[ghostman]

LMAO

 

[cosnow]

There's a lot of mechanics on the iboats.com forum that have helped me on many fixes.