3cly 55hp Johnson 1968 ? runs like ?@!*&

Allfish

Recruit
Joined
Apr 19, 2004
Messages
3
Ran good last year stored out side over winter with cover. fuel stable used new gas in now .In lake Starts Hard Runs about 5 min then dies while missing runs good on 3rd cly intermintin on 1 and 2. plugs pulled and 1 and 2 wet 3 ok has 3 carbs 2 stroke had total rebuild 2yrs ago crank repaired by welding to fix small vac leak when piston arm went through crank case . All new CDI wires. Possable problems. Plugs friend said use NTK zero gap. Carb ? Carb settings? Pickup. Help apperciated. Motelyfool2@wmconnect.com
 

rodbolt

Supreme Mariner
Joined
Sep 1, 2003
Messages
20,066
Re: 3cly 55hp Johnson 1968 ? runs like ?@!*&

hello<br /> test the points.<br /> they go bad just sitting .<br /> drain the actual carb bowls. the gas likes to evaporate and leave the solids behind and causing problems.<br /> otherwise if it ran well when ya parked it then mechanically it should run well when ya take it out of storage. fuel and electrical dont like storage.<br /> good luck and keep posting.
 

Joe Reeves

Supreme Mariner
Joined
Feb 24, 2002
Messages
13,262
Re: 3cly 55hp Johnson 1968 ? runs like ?@!*&

You've just described a engine that has had its carburetors foul due to sitting over a period of time. The cure would be to remove, clean, and rebuild them with complete kits.<br /><br />Do not continue to run your engine in this condition as it would be runing lean which will cause piston damage.
 

Bass Runner

Senior Chief Petty Officer
Joined
Apr 2, 2004
Messages
746
Re: 3cly 55hp Johnson 1968 ? runs like ?@!*&

Plugs could be laying down (Always use champion) check the spark if good i'd go the carb route, if your getting fire and fuel it has to run unless the reeds are screwed up. :confused:
 

Allfish

Recruit
Joined
Apr 19, 2004
Messages
3
Re: 3cly 55hp Johnson 1968 ? runs like ?@!*&

Ok will check those things thanks Will report back if any change
 

Allfish

Recruit
Joined
Apr 19, 2004
Messages
3
Re: 3cly 55hp Johnson 1968 ? runs like ?@!*&

Ok Guys carbs good run a CDI in this thing Checked Blue wire that goes to coil with Digital muti meter got power when rotating fly by hand with ignition on recieved signal from all three pickups. Next not shure how to Check coil use muti meter got continuity between ground And power lead.Running 260ohms between Power and Plug terminal And 260ohms Between Negative and plug terminal. Is my coil grounded out? Motelyfool2@wmconnect.com
 
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