Magneto trouble shooting
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1st Gear
Joined: Mar 2024
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From: Tampa, Fl
Magneto trouble shooting
Hi, I am new to this world. My boyfriend has a 45 Harley flathead we’re racing. I am interested in learning more mechanically to become involved in it as much as possible.
He purchased a new Burkhardt Magneto and only after a few laps the bike kept having more and more difficulty in starting and then it stalled out. Any ideas what could be up with the Magneto? We know it’s not getting a spark, but how or why when it’s brand new and not many hours on it?
TIA
He purchased a new Burkhardt Magneto and only after a few laps the bike kept having more and more difficulty in starting and then it stalled out. Any ideas what could be up with the Magneto? We know it’s not getting a spark, but how or why when it’s brand new and not many hours on it?
TIA
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From: la la land jerzey
A few checks are in order - point gap can do that and or a bad condenser
the mag ground or lack of can do that - you can add a ground wire to the mag just to make sure that was not it
loose ness in magnets re tighten every thing its assembled by no one knows his ability
check the spark plug gap - picture up the sparkplugs to see what’s going on it could even the carb jetting and now the plugs are fouled
45 do not have lots of compression so sparkplugs are the tell tail
the intake manifold does it have the brass seals holding it together if so you need to replace them with the peek seals and the carb Venturi is it loos in the carbs body bore /< will cause all kinds of issues
the mag ground or lack of can do that - you can add a ground wire to the mag just to make sure that was not it
loose ness in magnets re tighten every thing its assembled by no one knows his ability
check the spark plug gap - picture up the sparkplugs to see what’s going on it could even the carb jetting and now the plugs are fouled
45 do not have lots of compression so sparkplugs are the tell tail
the intake manifold does it have the brass seals holding it together if so you need to replace them with the peek seals and the carb Venturi is it loos in the carbs body bore /< will cause all kinds of issues
Last edited by johnjzjz; Mar 12, 2024 at 06:35 PM.
Thread Starter
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1st Gear
Joined: Mar 2024
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From: Tampa, Fl
Thank you for all that!
so we checked the plugs
funny enough we did also have an intake manifold leak. Retightened the brass and then flex sealed them.
personally I was leaning towards a ground issue so that was the next thing I was having him check
I will work down the list though
I am also in the process of trying to find out if you can get a morris magneto kit to just replace the inwards with as well
so we checked the plugs
funny enough we did also have an intake manifold leak. Retightened the brass and then flex sealed them.
personally I was leaning towards a ground issue so that was the next thing I was having him check
I will work down the list though
I am also in the process of trying to find out if you can get a morris magneto kit to just replace the inwards with as well
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Joined: Nov 2006
Posts: 12,878
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From: la la land jerzey
Morris is the same insides no one is making anything different except the name - and all the mags copied the original Harley plant form
change the brass seal too peek and do not tighten them like the brass snug then hot pull down along the lines of a license plate bolt peek is a new age plastic
change the brass seal too peek and do not tighten them like the brass snug then hot pull down along the lines of a license plate bolt peek is a new age plastic
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From: Long Island, New York
Google is your friend:
Morris Magneto
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