Alpha I 5.0 EFI missing at full throttle

[dwolter]

I have a 1998 Chapparal 21 ft with an Alpa I drive, 5.0 liter 225 hp EFI. It began to miss three weeks ago at full throttle operation, but runs fine at lower throttle positions. Does someone have an idea what it might be, ignition or fuel, or hopefully more specific.<br /><br />Thank you,<br /><br />Chap boy

 

[JB]

Re: Alpha I 5.0 EFI missing at full throttle

That is not an outboard engine, Chap Boy.<br /><br />Try the I/O and Inboard Engines Forum.<br /><br />Good luck.