Johnson 90 hard starting and lack of power

[rcpilot]

I have a johnson 90 v4 1996.It will start if i squirt mixed fuel in carbs.After started and running on water not all cylenders are firing all the time,in and out.This motor has been sitting for acouple years.

 

[Yepblaze]

Re: Johnson 90 hard starting and lack of power

Sounds like it's all jacked up.<br /><br />At least needs a "REAL" carb cleaning, but check and make sure the fuel is getting to the carb well.<br /><br />Also make sure you have the cold start procedure down and understand how to choke the motor.<br /><br />It's not bad mechanics process to go from there and also do a compression check to determine the soundness of internals.<br /><br />Then after going over those essentials if drivabilities still exist start running electronics diagnosis.

 

[svangui1]

Re: Johnson 90 hard starting and lack of power

I would start with a new gas line and bulb. Any air leaks could cause problems.

 

[rcpilot]

Re: Johnson 90 hard starting and lack of power

whats the best way to clean carbs

 

[dkondelik]

Re: Johnson 90 hard starting and lack of power

good avise already given. if the motor was "put-up" with fuel in the carbs, chances are that you'll need to remove the carbs and service them. old gas would have "varnished" and clogged the jets and orafices.<br /><br />let us know what you find<br /><br />Good Luck

 

[rcpilot]

Re: Johnson 90 hard starting and lack of power

Whats the best way to check witch carb is failing