Tudorc
Member
I have a 97 Challenger with single 787. When the engine is hot (after 10mins+ use at high revs/WOT), I can’t get the boat onto a plane again and the RPMs stick at 5000. If/when I can get it to plane in these circumstances, the RPMs are 1000-1500 lower at normal WOT RPMs (6800ish normally) but the RPMs go intermittently up and down slightly (500rpms up and down).
The boat was serviced a week ago, ran great for 5 days and then this problem started. Compression is/was 125psi. The carbs were rebuilt. I pulled and cleaned the RAVEs again, replaced the plugs and inline fuel filter.
Again, when the engine is cold, it gets onto a plane fast. It will rev to 7000 in reverse all the time.
It’s also pretty tough to start when warm and it has been sitting for a few minutes... not sure if this related.
Any ideas?
The boat was serviced a week ago, ran great for 5 days and then this problem started. Compression is/was 125psi. The carbs were rebuilt. I pulled and cleaned the RAVEs again, replaced the plugs and inline fuel filter.
Again, when the engine is cold, it gets onto a plane fast. It will rev to 7000 in reverse all the time.
It’s also pretty tough to start when warm and it has been sitting for a few minutes... not sure if this related.
Any ideas?