Johnson 115 v4 60 degree

[Jay alex]

Hi, can anyone help me with my Johnson 115 v4 2006 carberator, since i bought the motor, iv had a slight hesitation on pull off, iv set floats, when carb upside down float is level with gasket base, fitted new gaskets and orings, cleaned all jets, and still no luck,

No im having issues with it running too lean, i screw fuel mixture screw right in while motor running and doesn't die or spit back.. Have no idea what the problem is.. If anyone could help..?

Also noticed my techometer isint working on idle, soon as i rev motor it seems to rise but seems way off actual revs, checked charge rate seems to me normal 13.9.. Think its the voltage regulator thats faulty? As checked all wiring and getting constant power..

If anyone could help me with these issues i would greatly appreciate it..

 

[racerone]

Post compression values.----And does spark jump a gap of 3/8" (1 cm ) on all leads ?

 

[ct1762@gmail.com]

the hesitation sounds like improper synch n link, with the cam roller smashed up against the throttle cam, letting additional fuel in before spark is able to advance. follow the factory manual's procedure, and make sure the timing is correct (need the v4/v6 easy timer to do it properly).

 

[flyingscott]

Get a factory manual. When you cleaned the carbs did you do the calibration pockets.

 

[Jay alex]

Post compression values.----And does spark jump a gap of 3/8" (1 cm ) on all leads ?

Compression was between 115/120 on all cylinders, i haven't checked all spark on leads, what would be the best way to check this? Thanks again for your help

 

[Jay alex]

the hesitation sounds like improper synch n link, with the cam roller smashed up against the throttle cam, letting additional fuel in before spark is able to advance. follow the factory manual's procedure, and make sure the timing is correct (need the v4/v6 easy timer to do it properly).

Timing set with easy timer, all 100%, where would i find factory settings for synch and link, took boat to a well know Johnson/ evinrude technician, he seems to think its reed valves

 

[Jay alex]

Get a factory manual. When you cleaned the carbs did you do the calibration pockets.

Were could i get a factory manual? So little online about these motors.. What is calibration pockets?

 

[Chris1956]

2 stroke motor, right? If so, the throttle bodies plus the carb bodies perform all the functions of a traditional carburetor. The carb bodies have the floats and inlet needle, plus the high speed jet. The throttle bodies have the throttle plate, low speed jet and intermediate air orafice.

The calibration pockets are on either side of the throttle bodies.

The intermediate orafices control off-idle performance. I would clean the intermediate orafices, as then tend to clog. A blast of carb cleaner can fix 'em. A factory service manual would be best. They can be had at the marine engine (one word) web site.

 

[Jay alex]

2 stroke motor, right? If so, the throttle bodies plus the carb bodies perform all the functions of a traditional carburetor. The carb bodies have the floats and inlet needle, plus the high speed jet. The throttle bodies have the throttle plate, low speed jet and intermediate air orafice.

The calibration pockets are on either side of the throttle bodies.

The intermediate orafices control off-idle performance. I would clean the intermediate orafices, as then tend to clog. A blast of carb cleaner can fix 'em. A factory service manual would be best. They can be had at the marine engine (one word) web site.

Hi, yes 2 stroke motor, with those calibration pockets, are those adjustable? Just saw a small plate and gasket on them..

Thanks again for the reply and information, il try getting the manual

 

[ct1762@gmail.com]

i have serious doubts it's the leaf plates/reeds. on those motors, it is certainly possible to develop an air leak between the plastic reed/leaf plate housing and the block, but not common. what is common on these you ask? having great compression, but poor leakdown aka the piston skirts being shot. this can cause all sorts of erratic idle qualities.

 

[Jay alex]

i have serious doubts it's the leaf plates/reeds. on those motors, it is certainly possible to develop an air leak between the plastic reed/leaf plate housing and the block, but not common. what is common on these you ask? having great compression, but poor leakdown aka the piston skirts being shot. this can cause all sorts of erratic idle qualities.

Motor ildes great, only issue is slight hesitation on pull off, will take carbs and throttle body's off, and reeds and check for any leaks.

 

[Chris1956]

Calibration pockets are not adjustable. They do need to be cleaned though.

Reed valves do not usually cause hesitation when accelerating. Check off idle orafices to make sure they are clean. Check gaskets on carb bases for leaks. Make sure you get the right carb kits. Some kits have the wrong gaskets, although that are listed for your carbs.

 

[Jay alex]

Calibration pockets are not adjustable. They do need to be cleaned though.

Reed valves do not usually cause hesitation when accelerating. Check off idle orafices to make sure they are clean. Check gaskets on carb bases for leaks. Make sure you get the right carb kits. Some kits have the wrong gaskets, although that are listed for your carbs.

Ok awesome, il give them a check over and clean, hopefully its just some dirt causing this, thanks again for the help..