Running Issue
#1
Running Issue
Boat starts runs fine. Idle out of canal fine gets on plane runs great. Run along 3800 rpm perfect. As soon as I let off at all starts breaking up. Then continues the bog worse and worse. At idle barely run. Leave it for 20 mins starts up runs fine again for a while then same issue. Changed seperator and in-line filter no better. Holley 750 double pumper I知 thinking loading up?
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SB (08-10-2020)
#3
Registered
Have you checked your spark plugs to see if you are getting excess fuel? Could also be you coil over heating, had that on my boat, did the exact same thing.
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SB (08-10-2020)
#6
I have the Mallory electronic ignition and a super stock coil. I looked it up, the ignition requires min 1.5ohm. The super stock is 1.4ohm. I ordered a new coil fingers crossed it痴 overheating. Boat runs absolutely perfect then acts up. Limped to trailer ramp on 4cylinders lol. Got home started it to flush it ran perfect.
#7
*
Platinum Member
May not be the issue but a very similar thing happens when the fuel tank vent is blocked .
To eliminate that possibility loosen off the fill cap and try running it as you do when the problem presents itself.
To eliminate that possibility loosen off the fill cap and try running it as you do when the problem presents itself.
#8