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Engine basics => Engine set up tips => Topic started by: Dick Kultner on August 20, 2009, 09:24:28 AM

Title: problem to adjust fox15 bb/cl
Post by: Dick Kultner on August 20, 2009, 09:24:28 AM

 hello, i try to adjust my new engine,its hard to do it some tiems its to lean or to ritch the needle valve are only half turn out.thanks. ,swede,

Title: Re: problem to adjust fox15 bb/cl
Post by: john e. holliday on August 20, 2009, 10:04:31 AM

Teflon tape on the threads or a short peive of fuel line over the threaded portion.  Make sure spray bar hole is in correct position.  Have fun,  DOC Holliday

Title: Re: problem to adjust fox15 bb/cl
Post by: Alan Hahn on August 25, 2009, 07:28:36 PM

Quote from: Dick Kultner on August 20, 2009, 09:24:28 AM

hello, i try to adjust my new engine,its hard to do it some tiems its to lean or to ritch the needle valve are only half turn out.thanks. ,swede,

It does take some time to break in the Fox15 since it is an iron piston/steel sleeve. Maybe that is the problem.

Mine are all sweet running engines.

Title: Re: problem to adjust fox15 bb/cl
Post by: fred krueger on August 26, 2009, 11:27:05 AM

I've seen this needle sensitivity problem with too little oil in the fuel.  Make sure you are running at least 20% oil.  All castor is preferred as this is an iron piston engine.

Fred