1979 Johnson 100HP Javlin Outboard Starting Help needed!! (pardon the
length - wanted to get all the details in about my experience working
this out).

Fellow Johnson (and or Evinrude) 1979 Javlin 100hp Outboard owners and
OB mechanics,

I just bought a extremely nice 1979 Crestliner 15' Open bow boat, motor
and trailer. When I bought the boat, it was in the water, off the
owners dock, all covered up. Looking at the boat, I did all the
preliminary checks I could and the interior was well kept and clean. I
came in almost unannouced, I let the owner know I would be by sometime
that evening and got there early like 5:30pm right after work. I
mention this so that it would eliminate my thoughts that the owner may
"pre start" the motor in a warmed up condition when asked to "hear the
motor running" before the purchase.

Well the motor was cold, I asked the owner to start the motor making
sure that it did run ok. Here's how he started it and it seemed normal
at the time.

1) pumped bulb to the motor insuring good gas flow pressure.

2) He mentions "I may have got the mix alittle to rich (too much oil)"
and if you decide you like the boat to mix it a bit "lean" to help with
the starting of the motor.

3) turns the ingnition key "on"; and lifts the small (high idle) lever
next to the FNR Control Arm (w/power trim button).

4) the motor "fires" like once and stalls immediately (still cranking);
stops cranking; and retrys with the high idle lever about 1/2 way up
and this time the boat "fires" and he immediately forces the high idle
lever all the way up and the motor is now running fine at high idle -
not missing at all; no sputters; nice and clean. He lowers the idle to
normal and we continue with my Q&A session about the boat. I'm
convinced it runs good as he stated it did - although it was just a bit
rough starting.

At this point, I'm thinking VIOLA the guys got a slightly bad mix and
it's just a bit hard starting. The owner states that these motors
"foul" plugs all the time and you might have to change the plugs. That
did not make sense to me unless this he's been overdoing the oil every
time in the 50:1 mix ratio.


DAY1-I buy the boat and take it out the first time. I pump the bulb. I
turn the motor on, it fires once (like above), but this time it will
not fire again; running the battery down, trying all kinds of high idle
lever positions (up, medium, low). The old owner did mention "I had to
replace the battery; if that has low juice it won't run very well." So
I pack up and take the boat home and charge the battery for 24hrs.

DAY2-The battery is fully charged; I have Starting Fluid in hand as
well as a can of Marnine CARB Cleaner. I pump the bulb. I try the motor
and the idle leaver first - would not fire; I pop the top to the motor
and spray a shot of Starting Fluid in each carb (4) intakes; restart
and the motor runs fine (the high idle leaver working great controling
the low-high idle speed).

I enjoy a nice hour on the boat and felt I ran all his "RICH" gas out
of the tank (tank indicator was on E) and re-filled the tank with 5gal
PREIMIUM + the on the button 50:1 mix. I turned off the key, filled up,
and went to restart the "WARM" motor, it does the exact same thing,
fires once and will not re fire (still cranking). The high idle leaver
does nothing in getting the motor to run.

I pop the top and spay the starting fluid in the carbs and BAM the
motor fires up and stays running very smooth, not a miss, when I turn
the key on to restart. I enjoy the rest of the day on the boat, take it
in to the dock, turn of the key and restart it (to check to see if it
will restart) and it DID! It restarted without any problems - WOO HOO!
Must of got the mix right I was thinking and it's working good; restart
problems is gone for good!

DAY3-I take the boat out with the intent to work on the motor; clean
the carbs w/Marine Carb Cleaner (Merc Silver), and check the restart.
The battery again was charged for a good 6hrs prior (to make sure I had
a good bat). Going to start the motor the same behavior takes place, I
pump the bulb, turn key, fires once, and quits. High Idle leaver does
nothing. I get the starting fluid out and the motor starts up great!! I
take it out warm the motor, add 5gal US PREMIUM + OIL (perfect 50:1)
mix, this time I clean the carbs with the aerosol carb cleaner. Stall
the motor with a full can of carb cleaner; waited 15min (per the
instructions) and BAM the motor restarts on the 1st try. The boat
smokes for about a minute (carb cleaner) and then goes on to run
perfectly for the rest of day. So I take the boat in, turn it off and
try to restart, and it fails again (just like it did before).

What I have here is an intermittent starting problem and I can't seem
to shake. I popped the top again, forced on the "manual choke" and the
motor "fires" once gain. I turn off the choke, and cannot get the motor
to fire even with the high idle control leaver in various positions. It
seems this motor needs STARTING fluid always to start? but runs
EXCELLENT after that.

Could this be a spark plug pbrm - even though it runs great at low idle
(will not stall), med, and high speeds? The mix is right. Seems almost
like a low voltage condition at startup but need to veryify that or see
if any others here have experienced the same intermittent "hard
starting" motor behavior and what can be done to get the motor starting
the 1st time "every time."

Thanks!

wrote:
1979 Johnson 100HP Javlin Outboard Starting Help needed!! (pardon the
length - wanted to get all the details in about my experience working
this out).

Fellow Johnson (and or Evinrude) 1979 Javlin 100hp Outboard owners and
OB mechanics,

I just bought a extremely nice 1979 Crestliner 15' Open bow boat, motor
and trailer. When I bought the boat, it was in the water, off the
owners dock, all covered up. Looking at the boat, I did all the
preliminary checks I could and the interior was well kept and clean. I
came in almost unannouced, I let the owner know I would be by sometime
that evening and got there early like 5:30pm right after work. I
mention this so that it would eliminate my thoughts that the owner may
"pre start" the motor in a warmed up condition when asked to "hear the
motor running" before the purchase.

Well the motor was cold, I asked the owner to start the motor making
sure that it did run ok. Here's how he started it and it seemed normal
at the time.

1) pumped bulb to the motor insuring good gas flow pressure.

2) He mentions "I may have got the mix alittle to rich (too much oil)"
and if you decide you like the boat to mix it a bit "lean" to help with
the starting of the motor.

3) turns the ingnition key "on"; and lifts the small (high idle) lever
next to the FNR Control Arm (w/power trim button).

4) the motor "fires" like once and stalls immediately (still cranking);
stops cranking; and retrys with the high idle lever about 1/2 way up
and this time the boat "fires" and he immediately forces the high idle
lever all the way up and the motor is now running fine at high idle -
not missing at all; no sputters; nice and clean. He lowers the idle to
normal and we continue with my Q&A session about the boat. I'm
convinced it runs good as he stated it did - although it was just a bit
rough starting.

At this point, I'm thinking VIOLA the guys got a slightly bad mix and
it's just a bit hard starting. The owner states that these motors
"foul" plugs all the time and you might have to change the plugs. That
did not make sense to me unless this he's been overdoing the oil every
time in the 50:1 mix ratio.


DAY1-I buy the boat and take it out the first time. I pump the bulb. I
turn the motor on, it fires once (like above), but this time it will
not fire again; running the battery down, trying all kinds of high idle
lever positions (up, medium, low). The old owner did mention "I had to
replace the battery; if that has low juice it won't run very well." So
I pack up and take the boat home and charge the battery for 24hrs.

DAY2-The battery is fully charged; I have Starting Fluid in hand as
well as a can of Marnine CARB Cleaner. I pump the bulb. I try the motor
and the idle leaver first - would not fire; I pop the top to the motor
and spray a shot of Starting Fluid in each carb (4) intakes; restart
and the motor runs fine (the high idle leaver working great controling
the low-high idle speed).

I enjoy a nice hour on the boat and felt I ran all his "RICH" gas out
of the tank (tank indicator was on E) and re-filled the tank with 5gal
PREIMIUM + the on the button 50:1 mix. I turned off the key, filled up,
and went to restart the "WARM" motor, it does the exact same thing,
fires once and will not re fire (still cranking). The high idle leaver
does nothing in getting the motor to run.

I pop the top and spay the starting fluid in the carbs and BAM the
motor fires up and stays running very smooth, not a miss, when I turn
the key on to restart. I enjoy the rest of the day on the boat, take it
in to the dock, turn of the key and restart it (to check to see if it
will restart) and it DID! It restarted without any problems - WOO HOO!
Must of got the mix right I was thinking and it's working good; restart
problems is gone for good!

DAY3-I take the boat out with the intent to work on the motor; clean
the carbs w/Marine Carb Cleaner (Merc Silver), and check the restart.
The battery again was charged for a good 6hrs prior (to make sure I had
a good bat). Going to start the motor the same behavior takes place, I
pump the bulb, turn key, fires once, and quits. High Idle leaver does
nothing. I get the starting fluid out and the motor starts up great!! I
take it out warm the motor, add 5gal US PREMIUM + OIL (perfect 50:1)
mix, this time I clean the carbs with the aerosol carb cleaner. Stall
the motor with a full can of carb cleaner; waited 15min (per the
instructions) and BAM the motor restarts on the 1st try. The boat
smokes for about a minute (carb cleaner) and then goes on to run
perfectly for the rest of day. So I take the boat in, turn it off and
try to restart, and it fails again (just like it did before).

What I have here is an intermittent starting problem and I can't seem
to shake. I popped the top again, forced on the "manual choke" and the
motor "fires" once gain. I turn off the choke, and cannot get the motor
to fire even with the high idle control leaver in various positions. It
seems this motor needs STARTING fluid always to start? but runs
EXCELLENT after that.

Could this be a spark plug pbrm - even though it runs great at low idle
(will not stall), med, and high speeds? The mix is right. Seems almost
like a low voltage condition at startup but need to veryify that or see
if any others here have experienced the same intermittent "hard
starting" motor behavior and what can be done to get the motor starting
the 1st time "every time."

Thanks!

Check to see that the electric choke is working. You should have either
a choke button, or push the key in to choke. My '74 have a button for
choke. Take the cover off, and watch the choke selenoid when you turn
the key on, it should partially close the choke. Then when you push the
choke button, or key in or whatever operates the choke from the helm,
it should fully close.

Awesome info. Bassman.

Yep I called my local marina mechanic and he also verified that you
"push the key" to choke the beast. I never even knew that and I doubt
the old owner knew that as well since he never told me about that.

I'll give a full report on the my next outing this weekend and will try
pushing the key tonight (and listening for the solinoid to click) just
to test and watching the the choke as you suggested. I could be out of
the woods on this but won't know for sure until I can get it back in
the water (this weekend; perhaps sooner).

Thank you,

Basskisser, I'll keep ya posted.

wrote:
1979 Johnson 100HP Javlin Outboard Starting Help needed!! (pardon the
length - wanted to get all the details in about my experience working
this out).

Fellow Johnson (and or Evinrude) 1979 Javlin 100hp Outboard owners and
OB mechanics,



Thanks!


You missed the part where the previous owner was pushing in on the
key(choke) while cranking it cold.

Don't use "premium" fuel. It is known to cause driveability & starting
problems, and a devaluation of your bank account. The owner's manual
specifies 80 octane or better, so the 87 or 86 octane is still "premium"
to your outboard.

Rob

wrote:
Awesome info. Bassman.

Yep I called my local marina mechanic and he also verified that you
"push the key" to choke the beast. I never even knew that and I doubt
the old owner knew that as well since he never told me about that.

I'll give a full report on the my next outing this weekend and will try
pushing the key tonight (and listening for the solinoid to click) just
to test and watching the the choke as you suggested. I could be out of
the woods on this but won't know for sure until I can get it back in
the water (this weekend; perhaps sooner).

Thank you,

Basskisser, I'll keep ya posted.

You're welcome!

I'm sure it's having to push the key in for choke.

The older engines with high compression ratio's did like their octane. Early
70's through the early 80's. In fact, for those engines they did have a kit
to reduce the comp ratio, change timing and increase the fuel jet sizes so
they would tolerate the lower octane fuels.

OMC later also came out with a bulletin that they recommend using 89 octane
as the fuel choice. I would not really recommend using low octane fuel in
it. You don't need to run the high octane but I would stick with the 89 to
help prevent possible detonation.

Ron

wrote in message
ups.com...
1979 Johnson 100HP Javlin Outboard Starting Help needed!! (pardon the
length - wanted to get all the details in about my experience working
this out).

Fellow Johnson (and or Evinrude) 1979 Javlin 100hp Outboard owners and
OB mechanics,

I just bought a extremely nice 1979 Crestliner 15' Open bow boat, motor
and trailer. When I bought the boat, it was in the water, off the
owners dock, all covered up. Looking at the boat, I did all the
preliminary checks I could and the interior was well kept and clean. I
came in almost unannouced, I let the owner know I would be by sometime
that evening and got there early like 5:30pm right after work. I
mention this so that it would eliminate my thoughts that the owner may
"pre start" the motor in a warmed up condition when asked to "hear the
motor running" before the purchase.

Well the motor was cold, I asked the owner to start the motor making
sure that it did run ok. Here's how he started it and it seemed normal
at the time.

1) pumped bulb to the motor insuring good gas flow pressure.

2) He mentions "I may have got the mix alittle to rich (too much oil)"
and if you decide you like the boat to mix it a bit "lean" to help with
the starting of the motor.

3) turns the ingnition key "on"; and lifts the small (high idle) lever
next to the FNR Control Arm (w/power trim button).

4) the motor "fires" like once and stalls immediately (still cranking);
stops cranking; and retrys with the high idle lever about 1/2 way up
and this time the boat "fires" and he immediately forces the high idle
lever all the way up and the motor is now running fine at high idle -
not missing at all; no sputters; nice and clean. He lowers the idle to
normal and we continue with my Q&A session about the boat. I'm
convinced it runs good as he stated it did - although it was just a bit
rough starting.

At this point, I'm thinking VIOLA the guys got a slightly bad mix and
it's just a bit hard starting. The owner states that these motors
"foul" plugs all the time and you might have to change the plugs. That
did not make sense to me unless this he's been overdoing the oil every
time in the 50:1 mix ratio.


DAY1-I buy the boat and take it out the first time. I pump the bulb. I
turn the motor on, it fires once (like above), but this time it will
not fire again; running the battery down, trying all kinds of high idle
lever positions (up, medium, low). The old owner did mention "I had to
replace the battery; if that has low juice it won't run very well." So
I pack up and take the boat home and charge the battery for 24hrs.

DAY2-The battery is fully charged; I have Starting Fluid in hand as
well as a can of Marnine CARB Cleaner. I pump the bulb. I try the motor
and the idle leaver first - would not fire; I pop the top to the motor
and spray a shot of Starting Fluid in each carb (4) intakes; restart
and the motor runs fine (the high idle leaver working great controling
the low-high idle speed).

I enjoy a nice hour on the boat and felt I ran all his "RICH" gas out
of the tank (tank indicator was on E) and re-filled the tank with 5gal
PREIMIUM + the on the button 50:1 mix. I turned off the key, filled up,
and went to restart the "WARM" motor, it does the exact same thing,
fires once and will not re fire (still cranking). The high idle leaver
does nothing in getting the motor to run.

I pop the top and spay the starting fluid in the carbs and BAM the
motor fires up and stays running very smooth, not a miss, when I turn
the key on to restart. I enjoy the rest of the day on the boat, take it
in to the dock, turn of the key and restart it (to check to see if it
will restart) and it DID! It restarted without any problems - WOO HOO!
Must of got the mix right I was thinking and it's working good; restart
problems is gone for good!

DAY3-I take the boat out with the intent to work on the motor; clean
the carbs w/Marine Carb Cleaner (Merc Silver), and check the restart.
The battery again was charged for a good 6hrs prior (to make sure I had
a good bat). Going to start the motor the same behavior takes place, I
pump the bulb, turn key, fires once, and quits. High Idle leaver does
nothing. I get the starting fluid out and the motor starts up great!! I
take it out warm the motor, add 5gal US PREMIUM + OIL (perfect 50:1)
mix, this time I clean the carbs with the aerosol carb cleaner. Stall
the motor with a full can of carb cleaner; waited 15min (per the
instructions) and BAM the motor restarts on the 1st try. The boat
smokes for about a minute (carb cleaner) and then goes on to run
perfectly for the rest of day. So I take the boat in, turn it off and
try to restart, and it fails again (just like it did before).

What I have here is an intermittent starting problem and I can't seem
to shake. I popped the top again, forced on the "manual choke" and the
motor "fires" once gain. I turn off the choke, and cannot get the motor
to fire even with the high idle control leaver in various positions. It
seems this motor needs STARTING fluid always to start? but runs
EXCELLENT after that.

Could this be a spark plug pbrm - even though it runs great at low idle
(will not stall), med, and high speeds? The mix is right. Seems almost
like a low voltage condition at startup but need to veryify that or see
if any others here have experienced the same intermittent "hard
starting" motor behavior and what can be done to get the motor starting
the 1st time "every time."

Thanks!

DAY4-Tested the press in key "choke" procedure last night. Turned key
on, and pressed in - sure enough there was a "click" sound going on
back at the motor.

The boat is still on the trailer right now and am assuming the auto
choke is working flawlessly (now that I know how to use it) and will
fire it up this weekend in the water.

Regarding the gas octane I do have the 79 Johnson Javlin 100hp
operating manual the previous owner gave with the deal. I'll read up
about the octane info and see what that says too. I always ran preimum
in my weedwackers(2cy), and lawnmowers(4cy) equip and for me anyways,
they seem to start fast, and run good with the good stuff. Based on
that I loaded the boat with premium thinking it would help at startup.

DAY4-Checked the 79' Johnson 100hp Javlin owner's manual regarding
octane:

"RECOMMENDED GASOLINE - Use gasoline with the following minimum octane
numbers - 1) Pump Posted Octane Number 86 2) Research Octane Number
Most Commonly Used in the Past 91"

and

"Automotive gasolines regular-leaded or lead-free meeting these minimum
octane numbers may be used; however; best results will be obtained on
35hp and under by using lead-free gasoline"

Johnson Outboard Oil / Gasoline Mix:

1 part of approved lubricant to 50 parts gasoline - 50:1
1/2pt (.23 litres) for 3 U.S. Gallons(11.4 litres)
1pt. (.46 litres) for 6 U.S. Gallons (22.7 litres)

wrote:
DAY4-Tested the press in key "choke" procedure last night. Turned key
on, and pressed in - sure enough there was a "click" sound going on
back at the motor.

The boat is still on the trailer right now and am assuming the auto
choke is working flawlessly (now that I know how to use it) and will
fire it up this weekend in the water.

I'm betting the problem is solved!

I'm betting the problem is solved!

DAY5-Coming back from the last time out, I heard a loud screeeeetch,
type noise, pull the boat and trailer over to the A&W. First thing,
check hubs - yep one is burning HOT and she's (the hub/bearings) shot.
I was able to drop the boat, and get the grease and screwdriver at the
Ace Hardware a block away. So I grease it up, and limp the boat and
trailer home.

I get both trailer hubs professionally worked on and installed new with
new buddy bearings. I take the boat out. Put it in the water and now,
the POWER TILT is not working. I cannot lower the motor in the water
(100hp Johnson OB Javlin). 1) the button works on the FNR leaver. 2)
the hydraulic pump is pumpin (or it's getting juice) so that circut is
good.

I press down on the power trim, and the hydraulic motor goes (like
normal), but the motor just sits there in a forward tilted out of the
water type position. I tried to press the motor down forcing it, and
that would not even work. I press up on the power trim button the
hydraulic motor hums but the motor does nothing?

This is not normal. The power trim always worked, well since I bought
the boat a few weeks ago. I did notice, when I went to pick up the boat
at the trailer shop, hydraulic fluid "leaking" out of what looked like
the right piston that sticks out behind transom next to the motor.
There is two of these piston looking things and there was hydraulic
fluid about 1 teaspoon, on the cement floor of the guy's shop. And
traced it up to that (seal)? around that piston that (One of Two of em)
stick up.

Looking at the back underneath side of the motor, there looks to be a
reseviour next too these pistons things, with a side screwdriver plug
type screw. I'll pull that out and put in some brake fluid? I guess
you'd use that or hyrdaulic fliud? (same thing?)?

Anyone ever fixed a non working power trim that looks and sounds like
it should be working? It's has to be low on fluid? Any help to fix this
one would be great!!!

BTW, I never got to test the auto choke which started the whole thread,
next weekend I hope now.