Thx. Will look in the factory repair manual a bit to see more. Maybe will replace upper and lower out of caution. VRO was taken out 20 years ago, I mix 50:1 oil in gas.
Would there be a knocking if camshaft itself was bad? Everything I have seen is flywheel play with rattle is probably the upper bearing, and if no knocking crankshaft is probably fine. But nothing has been definitive. Rattle/tapping just started within last 2 hours of use.
Does it take special...
All compression 115 to 119 (got a new gauge). Gear oil isn't leaking and has about 2 to 3 hours on it since changed.
Next step take off flywheel and look for problems? Are there bearings between flywheel and lower unit? Wonder if bearing (3 or 11 in diagram below) maybe are bad? What type...
1985 90hp Johnson v4.
It makes a rattling/ticking noise in the water. It is more noticeable if you are going kind of slow then accelerate a little (louder during the acceleration phase). Increases in frequency with increasing RPM (usually... see below for exception).
Took the cover...
1985 Johnson v4 90hp.
Heard a rattle today taking off from the dock. Sounded "tinny" like metal on metal (like the flywheel and flywheel nut). Got slightly louder with increasing RPM but otherwise ran fine. Drove about 3 miles. Shut motor off and sat an hour.
Started motor and rattle was...
After a bunch of testing it seems it was the regulator/rectifier.
So I just got done installing an OEM rectifier/regulator.
There are two yellow wires on the part. There is no yellow/gray wire.
Does it matter which of the yellow wires I connect to the yellow/gray connection on the terminal strip?
Was typing this out as trying things, ended up a little longer than anticipated.
Battery was 12.8 volts at rest.
Turned key to accessory and it was 12.8 v.
Ran it at idle about 1000 rpm and it was 13.2 v.
Put it in gear to about 2000 rpm and battery voltage just kept climbing for about 5...
Motor is a 1985 model year 90 hp v4 Johnson two stroke.
Took boat out today and when it was idling and when I was going very slow after putting it the water the tach worked. After leaving the dock starting to accelerate it dropped to zero. Speed was about 5 mph. As I sped up more to 10-15...
Took the boat out a couple days ago for the first time this year. It is a 1985 model year 90 hp v4 Johnson two stroke.
After driving a few minutes I saw the tachometer wasn't working. We continued for a few more minutes, then I slowed down and once it was in neutral before shutting the motor...
Got the snap washer out. I have a pair of pliers designed for those, but was only able to get one side in the hole because the hole is small and the washer is in there a ways. But got it out of the groove enough to get the whole thing out with needle nose pliers.
I actually got the screw...
Doing a new thread with a better description of the problem.
90 hp Johnson, 1986
The screw used to manually raise and lower the motor won't tighten. It leaks fluid now when the motor is raised or lowered, manually or using the trim/tilt button. This wasn't a problem before today (not...
Are the relays for this under the motor cover? I have done some work on the motor the last few years but nothing electrical. For sure relays this year range, or solenoids?
