Shark Racer
Recruit
- Joined
- Jun 23, 2013
- Messages
- 2
Hi all,
I'm planning on running my Mercury 9.9 at 4500'. I have no problem getting into a carburetor; I've overhauled a number of QuadraJet carburetors, as well as a couple Keihin and even Zenith-Strombergs off old Jags. I know that to make this thing run well I'd have to downjet a size or two, but I haven't had any luck finding a place that offers jets. I can only find stock replacement.
For what it's worth, this should be the 2011+ variant. I live at roughly sea level and will return to stock jetting before running it again. The last thing I need is to burn a hole in the piston.
I also have read that people go with "quicker" props to make up for the lost power. I'd still like to get the air-fuel ratio a bit closer to perfect for better throttle response, MPG and power at altitude.
Also - I'm a new member, and this is my first post, so hello. I'm a car nut and this will be the first boat *I own* to hit the water with a motor strapped to it. Looking forward to it. (It's a Zodiac Cadet 310S FWIW).
I'm planning on running my Mercury 9.9 at 4500'. I have no problem getting into a carburetor; I've overhauled a number of QuadraJet carburetors, as well as a couple Keihin and even Zenith-Strombergs off old Jags. I know that to make this thing run well I'd have to downjet a size or two, but I haven't had any luck finding a place that offers jets. I can only find stock replacement.
For what it's worth, this should be the 2011+ variant. I live at roughly sea level and will return to stock jetting before running it again. The last thing I need is to burn a hole in the piston.
I also have read that people go with "quicker" props to make up for the lost power. I'd still like to get the air-fuel ratio a bit closer to perfect for better throttle response, MPG and power at altitude.
Also - I'm a new member, and this is my first post, so hello. I'm a car nut and this will be the first boat *I own* to hit the water with a motor strapped to it. Looking forward to it. (It's a Zodiac Cadet 310S FWIW).