Chrysler 90hp will go full throttle in neutral but not when gear

LugnutMT

Recruit
Joined
Aug 26, 2016
Messages
1
I just recently bought this boat and did some minor repairs..... impeller and new gear oil.. I can get it to go about 5 to 10 miles an hour but after that it boggs out and dies.. I should add that I am at high altitude bout 5500 ft.. I have read in some posts that if I sqeeze the primer bulb nothing changes when running. It seems to be timed right cause I can go full throttle in neutral
 

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
17,927
Full throttle with no load means nothing.
​Clean the carb.
Check the fuel pump diaphragm.
Do a compression and spark test.
 
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