Sea-king Chrysler 15hp outboard motor does not start

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waseemganaie

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Joined
Apr 24, 2025
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7
Hello experts
I recently bought seaking chrysler 15hp 2 stroke outboard motor and it doesn’t start.
Replaced the coils .. condenser look good points also look good. Compression close to 100..

Spark looks good to me . I did put the starter fluid from spark plug holes but i see it drain down.. also tried to start didnt
I did open the fuel pump as well.. the diaphragm is not torn looks okay to mee.. see pictures below

What role does diaphragm Play in starting outboard motor?
 

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W

waseemganaie

Cadet
Joined
Apr 24, 2025
Messages
7
Hello experts
I recently bought seaking chrysler 15hp 2 stroke outboard motor and it doesn’t start.
Replaced the coils .. condenser look good points also look good. Compression close to 100..

Spark looks good to me . I did put the starter fluid from spark plug holes but i see it drain down.. also tried to start didnt
I did open the fuel pump as well.. the diaphragm is not torn looks okay to mee.. see pictures below

What role does diaphragm Play in starting outboard motor?
 
tg3690

tg3690

Lieutenant Junior Grade
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Messages
1,068
waseemganaie said:
What role does diaphragm Play in starting outboard motor?
Click to expand...
The diaphragm pumps the fuel......no fuel, no start. Even though it may not be torn or have any holes in it, it may be stiff from age. It should be very pliable/flexible or it won't pump fuel very well. If in doubt, replace it.
 
jerryjerry05

jerryjerry05

Supreme Mariner
Joined
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Messages
18,082
"spark looks good to you" ?? How did you test it?
If you squeeze the ball and pump the bowl full that should be enough fuel to start the motor. You using the choke?
 
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waseemganaie

Cadet
Joined
Apr 24, 2025
Messages
7
tg3690 said:
The diaphragm pumps the fuel......no fuel, no start. Even though it may not be torn or have any holes in it, it may be stiff from age. It should be very pliable/flexible or it won't pump fuel very well. If in doubt, replace it.
Click to expand...
Thank you it’s stiff.. but if i put some fuel from spark plug holes why does it come out.. and it doesn’t start
 
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waseemganaie

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Apr 24, 2025
Messages
7
jerryjerry05 said:
"spark looks good to you" ?? How did you test it?
If you squeeze the ball and pump the bowl full that should be enough fuel to start the motor. You using the choke?
Click to expand...
I did use spark plug tester and i see the it lights up also i put the spark plug on yhe bolt to see the if it spark it does
 
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waseemganaie

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Apr 24, 2025
Messages
7
As i mentioned above when i put gas from spark plug holes it come out from the bottom
The hole next to the propeller
 

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