did you change the rotor? simple test. I have seen this happen with a bad
rotor or even the carbon piece/and spring that connects the cap to the
rotor.
Ira Erbs
Portland,OR
_______ _______
(______ \____1959 BN4____/ _______)
(_________________________)
BT7 engine and disk brakes
A racing car is an animal with a thousand adjustments. Mario Andretti
Please excuse random auto corrects and misspelled words
On Wed, Aug 2, 2017 at 4:35 PM, Larry Paterson <Larry at patersondesign.ca>
wrote:
> Hi folks ? here?s one for you to ponder. For the past many years I?ve
> raced my 100M without a problem. Lately however at around 4500 RPM under
> load it balks and stutters running quite rough. I?ve checked timing,
> changed the condenser several times checked carbs and all the other usual
> stuff. When not under load it revs freely. The motor has a billet
> crank, roller rockers, aluminium head, 100S pistons, lightened flywheel etc
> and regularly ran up to 6500 ? 7000 RPM with no issues. It also has a
> Mallory distributor and is running 24 degrees of advance. Any advice on
> where to look next would be much appreciated.
>
>
>
> Thanks
>
> Larry Paterson
>
> 100M, BN7,
>
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