seasquirel
New member
"My boat is a 1990 seaswirl sp
"My boat is a 1990 seaswirl spyder sport 20' with ford 302.
Here is my problem. Boat will run fine tops out around 4k rpm at 43mph then occastionaly boat will drop down to 2500 rpm while throttle is still wot. Sometimes this issue will clear and back to boating as usual. Sometimes this issue will reduce boats performance to bairly idling with some popping/backfires/missing. While all of this issues are present you can shift boat into neutral and runs smooth as ever all the way to wot.
i have emptied gas tank and replaced fuel filter. Mechanic who really seems to know his stuff insisted it was carb, paid to have it rebuilt, still had problems and mech said stuff was getting by fuel seperator so we added in line fuel filter after water seperator and still having problems. Boat does shift in and out of gear pretty efortlessly so i do believe the shift assist is working. Also had shift cable replaced when clutch dog was done by same mechanic. This problem did exist prior to clutch dog replacement. Mechanic said antisyphon is fine. Should i be running high octane, fuel additive? What about fuel pump malfunction/detoriation of gaskets/diaphrams? any relay/choke that could be causing this?
Believe boat had plugs, wires, and cap in 2006
Thanks Guys!"
"My boat is a 1990 seaswirl spyder sport 20' with ford 302.
Here is my problem. Boat will run fine tops out around 4k rpm at 43mph then occastionaly boat will drop down to 2500 rpm while throttle is still wot. Sometimes this issue will clear and back to boating as usual. Sometimes this issue will reduce boats performance to bairly idling with some popping/backfires/missing. While all of this issues are present you can shift boat into neutral and runs smooth as ever all the way to wot.
i have emptied gas tank and replaced fuel filter. Mechanic who really seems to know his stuff insisted it was carb, paid to have it rebuilt, still had problems and mech said stuff was getting by fuel seperator so we added in line fuel filter after water seperator and still having problems. Boat does shift in and out of gear pretty efortlessly so i do believe the shift assist is working. Also had shift cable replaced when clutch dog was done by same mechanic. This problem did exist prior to clutch dog replacement. Mechanic said antisyphon is fine. Should i be running high octane, fuel additive? What about fuel pump malfunction/detoriation of gaskets/diaphrams? any relay/choke that could be causing this?
Believe boat had plugs, wires, and cap in 2006
Thanks Guys!"