merc 200 hp carb 1997

[hollywoodwayne]

my motor is doing what i"ve read some other guys have done, bogging down for a few seconds then taking off sometimes it takes a couple of tries so I just started the decarb process and when I started spraying the Quicksilver product in the carbs I noticed the top starboard carb seemed to be spitting some of the product out,none of the other ones just that one.I"ve done a compression

check and its 120 every cylinder,Any ideas anyone?

 

[j_martin]

Re: merc 200 hp carb 1997

my motor is doing what i"ve read some other guys have done, bogging down for a few seconds then taking off sometimes it takes a couple of tries so I just started the decarb process and when I started spraying the Quicksilver product in the carbs I noticed the top starboard carb seemed to be spitting some of the product out,none of the other ones just that one.I"ve done a compression

check and its 120 every cylinder,Any ideas anyone?

Could be a broken reed in that cylinder. It won't lower compression, but that hole should miss at idle. Won't take anything off top either, once you get there.

hope it helps
John

 

[verado7]

Re: merc 200 hp carb 1997

fuel pump will also do that ( not keeping up with the load) but look at your situation . when was the last time the carbs were rebuilt ( could be a stuck float or a needle not seating and letting in too much fuel ) the primer bulb could also be doing it -when it happens check the bulb is going soft ? all of these things are relatively inexpensive to do and easy for a beginner with some mech. skills - it should also be doen every few years just for safety sake