I have a 1986 Johnson 25 up it will set and idle just fine,I have a 1986 Johnson 25 up it will set and idle just fine, give it any throttle and it cough and sluggers and will not hit full rpm, I thought carb needs rebuilt, done it no change, I have had 4 diff… read more
Noel Schembri
Marine mechanic
Diploma
2,715 satisfied customers
I need to know the initial turns out on the idle airI need to know the initial turns out on the idle air adjustment screws on a 1998 Johnson outboard 2 cyl. 2Stroke and what is the idle timing supposed to be set at as well Model no. J50pleea… read more
Shane Creekmore
Certified Mercury Marine technician
High School or GED
535 satisfied customers
I have a 1999 115 outboard. the motor runs on just the twoi have a 1999 115 johnson outboard. the motor runs on just the two cyls on the port side. all four spark plugs are getting a good blue spark. the temps on the starboard cyl head is not getting hot. i … read more
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have a 1987 30hp outboard motor. I did a compression checkHi I have a 1987 Johnson 30hp outboard motor. I did a compression check spark plugs out throttle open for about 3 to 4 seconds. X3 each time same results) top reads about 136psi and the bottom 133psi.… read more
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
1992 60hp running half way wide open, new carb kit new1992 60hp Johnson running half way wide open, new carb kit new plugs, new choke cap , new plugs, good compression, motor acts like it is skipping not running on on cylinder. It will go to wide open ou… read more
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
have a 2001 johnson 150 hp, runs great at first, then afterhave a 2001 johnson 150 hp, runs great at first, then after 15 mins (warms up) starts running really bad, shakes, acts like its missing, when I try to plane the boat and put a load on motor, runs bad … read more
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I have a 1988 johnson 120 vro 4 cyl outboard. It coughs andI have a 1988 johnson 120 vro 4 cyl outboard. It coughs and sometimes stalls at idle. It has 95 psi compression in all 4 cyl. Carbs are clean, fresh fuel, new plugs. If you pull the plug wires one by … read more
Whitecap36
Service Manager/Technician
Vocational, Technical or Trade Scho
1,557 satisfied customers
Johnson 110hp vro 1987 I just bought this motor, its vroJohnson 110hp vro 1987 I just bought this motor, it's vro is disconnected. It was running for ten to fifteen minutes with a hesitation about every 30 seconds that sounded like it was going to run out … read more
Evinrude/Johnson
Evinrude/Johnson marine technician
Vocational, Technical or Trade Scho
41 satisfied customers
I am looking to re power my 21 foot center console. The boatI am looking to re power my 21 foot center console. The boat is rated for 250 hp. I have a 125 hp force now and am looking at 1995 Johnson 225 hp and 1996 mercury 200 hp. The price includes removing o… read more
Charles
Certified Mercury Tech
5,752 satisfied customers
I have a 200 hp johnson gt 1988 thats very hard to start ifI have a 200 hp johnson gt 1988 that's very hard to start if it sits for a week or more but once it starts it will run and start every time you hit switch it runs and idle fine no problems there this … read more
Tan
MerCruiser Certified Technician
Certified Marine Technician
11,409 satisfied customers
I have an 1989 johnson 88 special, it runs great, but dropsI have an 1989 johnson 88 special, it runs great, but drops 2 cylinders on and off, 1 minute its running on 2 then all of a sudden all 4, then drops 2, fuel flow is good and checked the carbs, all get… read more
Jeff G.
Marine Mechanic
Vocational, Technical or Trade Scho
4,730 satisfied customers
I bought a 1988 3 cylinder 60 hp Evinrude for $1300. The guyI bought a 1988 3 cylinder 60 hp Evinrude for $1300. The guy I bought it from told me all three cylinders had compression above 100 and all within 5 lbs of each other. I took the motor to my mechanic … read more
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
I did the test on the stator and got 488 ohms, no ground onI did the test on the stator and got 488 ohms, no ground on both terminals, and my V4 90 hp has a slight miss I'm thinking the powerpack installed new coils new spark plugs, but still wondering if the… read more
Jason
Marine Mechanic
Vocational, Technical or Trade School
22,043 satisfied customers
What would cause a 1994 112 HP Johnson to suddenly experieceWhat would cause a 1994 112 HP Johnson to suddenly experiece a dramatic loss of power, run rough, and fail to fire on one cylinder? Spark appears good to all plugs but #1 is wet after runnig, the rest… read more
shane j forrest
Vocational, Technical or Trade Scho
270 satisfied customers
I have a low hour (no more than 200 hours) 92 Force 3-cyl,I have a low hour (no more than 200 hours) '92 Force 3-cyl, 90 HP o/b. Recently, it developed an idle problem where when the engine is warm, the idle quits (RPM drops below 500 and the engine dies). A… read more
Captain Dave
Marine Mechanic
Master's Degree
2,672 satisfied customers
have a 85 3 cyl 70 hp Johnson. after running 90% throttlehave a 85 3 cyl 70 hp Johnson. after running 90% throttle for a few minutes, the motor will reduce throttle to about 20% & sometimes will come back. Will also, after reduction, run rough @ idle, say w… read more
davesoutboard
Marine Mechanic
Associate Degree
1,579 satisfied customers
+I have a 1992, 115 HP EVEVRUDE. THE ENG. IS MISSING. i+I have a 1992, 115 HP EVEVRUDE. THE ENG. IS MISSING. i RAN A COMPRESSION CHECK AND THE CYLS. AVG. WAS 110 LBS. THE TOP LEFT COL WAS NOT FIRING,, i CHANGED OUT THE COIL AND STILL NO FIRE.. WHAT COULD … read more
Marc C. Albertson
Chief Service Technician
Vocational, Technical or Trade Scho
56 satisfied customers
I have a 1985 70hp Johnson outboard, replaced plugs, wires,I have a 1985 70hp Johnson outboard, replaced plugs, wires, powerpack, p/u pump, new gear oil and the in line fuel filter, fresh gas. The motor runs great for a while under load. I hit a wake and moto… read more
Master Tech
Service Manager/Technician
Vocational, Technical or Trade Scho
1,167 satisfied customers
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