1975 50 Sizzler Misses

[rancher161]

Need Help ! My 1975 50 Sizzler starts excellent, runs great until about 30 minuites into the ride , then when you try and go to full throttle it sputters and misses. Fine when the motor has been running for under a half hour.<br />Fuel ? or Spark ? <br />Any help would be great help.

 

[Basscat 1]

Re: 1975 50 Sizzler Misses

welcome to iboats.<br />Sounds like the coil starts to break down when it gets hot. Figure out which cylinder loses spark when this happens and you will know which coil is going bad.

 

[rancher161]

Re: 1975 50 Sizzler Misses

Thanks, That sounds right to me. The coils are inexpensive and easy to change on this motor so I will probably swap out both anyway.<br /><br />Thanks Again