tips/procedures on restarting out boards

[weekendfisher]

Hi Guys,
Just after some advice/tips on starting outboards in different scenarios.
In my case i am referring to my 92' 55HP Johnson and my 92' 50HP Johnson when i start them from cold like just after putting them in the water they both start up first turn of the key and off i go, Now after anchoring and fishing for an hour or two i go to restart and they usually crank for a bit then on the second of 3rd time start up, is there a different procedure to starting a warmish engine up should i not prime the bulb more am i flooding them ?
I know that it i start them up again after about 5 mins after shutting down i just turn they key for a sec and they start up with not priming or squeezing of the bulb required.
Just after so advice on the right procedure here so i can be sure i'm not flooding the engines or anything else
Cheers

 

[sutor623]

Re: tips/procedures on restarting out boards

Well there is a chance that you are leaking fuel through improperly set float needle heights. If you let the motor chill, and do not reprime it it takes the motor more time to kick, but when you prime them they start right up? Secondly, I would not be worried about this, as long as it doesnt take an unusually long time to kick over no harm done, but yeah check your fuel system for slow leaks.

Oh and obviously there is no reason to choke a warm engine, so that may be another thing.

 

[weekendfisher]

Re: tips/procedures on restarting out boards

Thanks Pete,
I have just had the carbs on the 55 recently rebuilt so i would imagine the floats and needles are good in that one as for the 50 not sure about the carbs in that.
I usually re-prime the bulb and hit the primer button a few times then try to start they usually crank until it automatically stops cranking so i give it another go or two and then they start up. that's why i was not sure if i should not be re-priming the bulb or if i should do it more.
Both of these motors are on different boats and exhibit the same type of mannerisms.
Cheers

 

[sutor623]

Re: tips/procedures on restarting out boards

Thanks Pete,
I have just had the carbs on the 55 recently rebuilt so i would imagine the floats and needles are good in that one as for the 50 not sure about the carbs in that.
I usually re-prime the bulb and hit the primer button a few times then try to start they usually crank until it automatically stops cranking so i give it another go or two and then they start up. that's why i was not sure if i should not be re-priming the bulb or if i should do it more.
Both of these motors are on different boats and exhibit the same type of mannerisms.
Cheers

Gotcha, well if you go ahead and keep the primer bulbs tight, you will not flood these 2 stroke motors. Go ahead and prime the bulb if it has been more than 15-30 minutes since you had the motor running. Can't hurt anything.

 

[sutor623]

Re: tips/procedures on restarting out boards

Oh another thing that I sometimes do. If you open the neutral throttle lever a little, before you prime, the throttle butterfly valves will allow the fuel to go into the cylinder, rather than stop the gas before it gets there. I usually open the lever, prime the motor, then close the lever before starting it (unless it is really cold then I leave the lever open) Its funny how little tricks like this can make all the difference.

 

[weekendfisher]

Re: tips/procedures on restarting out boards

Thanks for the tips that's exactly the kind of information i was after.
I know all motors are different and have different quirks to get used to so it is all a learning curve ill give the method of opening the lever up a bit and priming the bulb before starting.
Can anyone explain what the difference really is between a full cold start and starting a motor about 2 hours after it has been shut off ?
Cheers

 

[cyclops2]

Re: tips/procedures on restarting out boards

All my outboards start instantly after warming up. Key starts or even a hand pull start.

What is the air temperature when you have to restart after a hour or 2 ?
Strange that you start quick on a first started cold engine in the morning. Then you can do a 5 minute restart quick. That is due to stoping with a almost closed throttle plate. The engine spins several times causing a HIGH VACUUM condition which will suck out extra fuel. That leaves the cylinder in a RICH fuel condition. Easy start.

I am guessing that your IDLE MIXTURE SCREW is set too lean. Check if you can turn it VERY easily. So easily that it might be vibrating & moving. Then there is actually READJUSTING the MIXTURE screw correctly. Has anyone taught you how to adjust the mixture screw correctly ?

Also. If your idle SPEED RPMs ARE too low. (Trying to save some gasoline ) That WILL cause your hard starting after sitting & warmed up.

It can just be a combination of low idle speed and / or IDLE MIXTURE adjustment. Should be that simple.

 

[weekendfisher]

Re: tips/procedures on restarting out boards

The air temperature is usually warm as i generally don't go out on cold days
The idle of the motor seems to be good not too low and the 55 was adjusted when the carbs were rebuilt.
I usually leave the out board down in the water when i'm fishing would this have any effect on restarting should i lift it out of the water when i am restarting it?