1984 suzuki dt75 spark

[mg1211]

have a 1984 dt75 that has a loss of power at full speed, compression is 130 in all 3 cyls, installed new plugs had spark when I pull the wires running 1 and 3 don't change the running of the motor pull number 2 and it will die,any idea on what"s going on. Thanks

 

[mg1211]

also the carbs have no suction other than number 2 cyl

 

[99yam40]

stuck closed reeds or sucking air from top and bottom crank seals maybe hole in crankcase
Just an opinion

 

[mg1211]

has been sitting for two years so maybe the reeds should I check myself or take it in I am a mechanic but on gas compression

 

[99yam40]

Inspection of reeds should tell you if they are a problem.

Never seen a pressure test of crankcase on an outboard motor before