[Spridgets] Misfiring engine

[WeslakeMonza1330 at aol.com]

Might be the coil if the problem is only at higher RPMs.  If you can't  fix 
it have a drive over to mine some time.
 
Weslake-Monza 1330
 
 
In a message dated 01/07/2011 21:51:11 GMT Daylight Time,  
alan.east-jones at ntlworld.com writes:

Any  thoughts on this ?  I have some ideas but will listen to others   !
Driving in torrential rain home  from Midget 50 ,  engine  started
misfiring at around 3500 rpm.hot.
I had fitted an  RVC  neg earth rev counter prior to the event and
drove there on  motorway at 60mph aprox  with two of us in the car and
soft top up.  Snakeman Brad suggested removing last thing fitted prior
to the problem,  the rev counter, so I did. With engine cold the misfire
is still there but  at 4200 rpm with and without rev counter connected.
Another  suggestion is the condensor - I will replace that now -  but
my gut  feeling is valve seat recession.
Any more ideas ?  TIA
Alan Warwick  UK