1973 starcraft 4cyl inboard

[Callofmine23212]

I have a starcraft I just got it new to boats but anyways I put it in to start it cranks but nothing I'm getting gas and spark starter I want to say sounds weak new battery some times it will crank then act like it's going to start but then crank again idk what is going on and I'm at a lost (I worked on cars before and this puts my head in nots) please help cheap way I got the boat for $300 so yea

 

[jbcurt00]

What engine?

 

[Scott Danforth]

What is your compression?

Did you service the points?

Did you service the fuel system?

 

[GA_Boater]

Starcraft made boats and never made any drive trains.

What motor?

 

[Callofmine23212]

It's the 140hp mercruiser and it's got gas like card is wet with it

 

[GA_Boater]

It's the 140hp mercruiser and it's got gas like card is wet with it

What does that mean?

 

[Callofmine23212]

This is what it's doing

 

[Callofmine23212]

The motor is mercruiser 140hp and the carb is wet so it's getting gad
And the video is with the choke on

 

[Callofmine23212]

With it off does same thing

 

[Callofmine23212]

Gas*

 

[GA_Boater]

Maybe flooding like the float is stuck open or the needle valve/seat is bad.

 

[Callofmine23212]

Do you know where all that is and how to get to it on that motor

 

[shiloh87]

No easy answer but thing to verify/inspect/test are;
-fresh gas?
-compression?
-spark/spark plug condition, when in doubt replace
-plug wires, condition?
-points and condenser condition?
-coil?
-timing?
-Gasket leaks, intake, head, exhaust?
-valve condition,(compression issues)?
-ignition lock-out, interrupter?
Generally if the above mentioned are in good nick, the engine will/should fire
No easy or cheap task, but things that need to be done, get busy..
Cheers

 

[GA_Boater]

In the carb.

 

[Eric 3.7LX Alpha 1]

read this write up from the "Adults Only Sticky"

How To: Troubleshoot a Points Ignition System​

How To: Troubleshoot a Points Ignition System

***Please read through ALL the information before attempting any procedure listed here and before asking ANY questions*** ***This tutorial is designed to explain step by step the proper procudures for troubleshooting a no spark issue for an engine with points ignition. If you are here, this...

forums.iboats.com

 

[Callofmine23212]

No easy answer but thing to verify/inspect/test are;
-fresh gas?
-compression?
-spark/spark plug condition, when in doubt replace
-plug wires, condition?
-points and condenser condition?
-coil?
-timing?
-Gasket leaks, intake, head, exhaust?
-valve condition,(compression issues)?
-ignition lock-out, interrupter?
Generally if the above mentioned are in good nick, the engine will/should fire
No easy or cheap task, but things that need to be done, get busy..
Cheers

New gas, compression is good, getting spark, wires look good, don't know what points are? Coil good, timing good, no leaks, and idk how to test ignition lockout. The guy who owned it said he drove it and it was asking weak he said carb or coil bit both are working there was a time where the sparks didn't arc like they were apposed to now 3 arc out of 4

 

[Callofmine23212]

In the carb.

OK so take it apart? And the needle things on bottom I adjusted and still nothing

 

[Callofmine23212]

read this write up from the "Adults Only Sticky"

How To: Troubleshoot a Points Ignition System​

How To: Troubleshoot a Points Ignition System

***Please read through ALL the information before attempting any procedure listed here and before asking ANY questions*** ***This tutorial is designed to explain step by step the proper procudures for troubleshooting a no spark issue for an engine with points ignition. If you are here, this...

forums.iboats.com

I read it but one thing I don't have light tester and they were black then I got new ones now they smell like gas so idk what it is

 

[shiloh87]

so weak spark, 3 out of 4 spark, sounds like ignition issues, which can be intermittent, just means somethings wrong or possibly failing.
Just because a coil works dosn`t mean its producing the proper potential to create a strong spark, the wires could be bad, points condenser could be pooched, distributor cap/rotor could wore out, possibly cracked?
If there`s fuel in the system, timing is good and the spark is strong you`ll get ignition, carb may not be up to snuff to keep it running, but my guess is the ignition side if you got gas and all the other stuff is good.

 

[shiloh87]

I read it but one thing I don't have light tester and they were black then I got new ones now they smell like gas so idk what it is

Wet plugs equal flooding, carb issues or weak ignition
Take plugs out, dry, check gap, with plugs out crank engine to clear fuel, re-install dry plugs, try it again, if you get the same results, then its most likely carb or ignition or both.