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from my google fu
Within the 22/23 Upper, you can choose from five different gear ratios. Those are 1.43, 1.51, 1.60, 1.66 and 1.85. As for the Volvo SXM 21/26 upper, there are 1.79, 1.97 and 2.18 ratios
The ski nautique is a ski boat, not a wake boat
The moomba is also a ski boat, however you can add bladders and get a bit of a wake. Just don't add too much
If your desire is wake, then the moomba
I would have no problem with a 4.5hp pushing a 20' boat as a kicker.
My buddy used a 2.5 on his dinghy to push his 37' sailboat 4 miles when his Perkins died
I have access to a Honda weed wacker motor based outboard that moves my boat (granted, a bit slow)
Pull line from the drive with motor running either on muffs/hose or in the lake and aim it up. Water will be flowing out about 6-8" at an idle. Then reinstall and go boating
impellers need to be submerged when starting or fed by muffs. 20 seconds without a good water supply and they are toast
older than 5 years and they are toast
try to suck water from a bucket and they are toast.
marine thermostats are stainless. so use the correct one.
additionally, without...
End grain balsa is still used today in low volume boats. It adds a lot of strength (by spacing the layers of fiberglass) without adding more than a pound or two
Plywood would be heavy
Building up with fiberglass matt will be heavier
There are other core materials out there. Foam core, nida...
You need to take fuel pressure readings with the motor at WOT and under full load for a while
What you are seeing is the float doing its job and the needle/seat opening and closing
However if your pressure is fluctuating that much, you have a restriction up stream. Such as anti-siphon valve...