3 hp johnson running problems

[infman]

can anyone help I have a 1962ish Jw-21E which will start perfectly but will not rev or run above tick over I have set the points and cleaned carb, fuel flow is ok and oil mix is 50:1.It will not accept any choke, is it running too rich,<br />when I cut fuel by turning off at tank it will rev to full power.Would appreciate any pointers thanks.

 

[JB]

Re: 3 hp johnson running problems

Howdy, Infman.<br /><br />Your JW-21 is a 1966.<br /><br />I suspect that you have one of several possible problems with your carburetor.<br /><br />Sunk, stuck or loose float.<br /><br />Broken or missing high speed jet needle.<br /><br />Broken or missing low speed jet needle.<br /><br />Broken linkage to carb and/or magneto base plate.<br /><br />Get a manual, then pull, dismantle and clean your carb. An overhaul kit is available at your dealer or NAPA.<br /><br />Good luck.

 

[infman]

Re: 3 hp johnson running problems

many thanks red sky, will try some suggestions,

 

[DJ]

Re: 3 hp johnson running problems

infman,<br /><br />I would bet it's a bad float, especially if it is the original cork style.<br /><br />Replace it, they're cheap.

 

[sloopy]

Re: 3 hp johnson running problems

wrong oil to gas mix too! 25/1

 

[JB]

Re: 3 hp johnson running problems

Wrong, Sloopy. 50:1 is correct for 1966.