Yoiu really need a service manual and probably a set of 4 vacuum guages or a
carb stick. Due to the paranoid it's hard to get carb sticks any more which
is unfortunate because they were way cheaper than 4 vacuum gauges.

"Lew" wrote in message
oups.com...
How do you adjust the carbs (4) on a 1999 Challenger 1800 Jet Boat.
Can it be done out of the water?
Can you adjust the carbs on one engine while the other engine is not
runnung?
Thanks for your help.

LEW