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Motorcycle Discussions => British Bikes => Topic started by: ian morris on November 13, 2008, 09:22:38 PM

Title: missfire
Post by: ian morris on November 13, 2008, 09:22:38 PM

i have a problem with a excelsior consort, when in high gear engine seems to missfire any ideas

Title: Re: missfire
Post by: 33d6 on November 13, 2008, 10:44:22 PM

What make of engine is fitted? Excelsiors own or Villiers?
Cheers,

Title: Re: missfire
Post by: ian morris on November 14, 2008, 05:23:38 PM

villiers

Title: Re: missfire
Post by: harry on November 15, 2008, 11:27:40 PM

Hi Ian,check  petrol flow {filter might be a bit clogged up}: check contact breaker points [state of gap and condenser a lot of sparking  on the points may indicate a faulty condenser}:is the HT lead made of copper? { carbon leads can cause problems} check carburettor joint to cylinder block  is gas tight: Is the plug the correct one and in good condition? try another one:is there too much oil in the petrol?{consult handbook for correct ratios } though with modern lubricants it is possible to reduce the quantity of oil -consult the oil company.Finally check the filler cap air hole is clear that is all for now Harry.