1998 mercuries 350 EFI MPI
Engine Serial OL067176
Sterndrive OL153367
On the water today, the boat was slow to reach 3000 rpms from WOT but thereafter the rpms climb was normal. she topped at 4800 rpm but I think it should have been in the 5200 rpms range.
on a another note, she couldn't keep RPMS at a steady rate for example when I set the speed/throttle to approximately 3400 rpms she slowly decreased to 3000 rpms.
all plugs, wires, distributor cap and rotor are new as well as the TPS.
I have recently set the timing. could it be timing?
Engine Serial OL067176
Sterndrive OL153367
On the water today, the boat was slow to reach 3000 rpms from WOT but thereafter the rpms climb was normal. she topped at 4800 rpm but I think it should have been in the 5200 rpms range.
on a another note, she couldn't keep RPMS at a steady rate for example when I set the speed/throttle to approximately 3400 rpms she slowly decreased to 3000 rpms.
all plugs, wires, distributor cap and rotor are new as well as the TPS.
I have recently set the timing. could it be timing?