magnet adjustment 17a

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sweman

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HI!
wondering how can i adjust the ponymagnet on my D7 17a , its a wico 7H 6866, I have finely got the pony to run but it does not go on full speed and also backfires, I have done as the instuctions says with a bult in the hole in gearbox and the mark is right in the pony there you put down magnet.

thankfull for answers
Tomas

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Wed, Nov 26, 2008 2:58 AM

Old Magnet

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Seems like you have the timing correct....more likely a carburetor/fuel problem.
Who's spark plugs are you using and are you using solid wire core spark plug leads?

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Wed, Nov 26, 2008 4:38 AM

sweman

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Hi!
Thank you!
I put in new gasoline because it woldn't go at all on the old one, and yes it's solid wires, but the sparkpluggs are probably not the right one, any idea what can i use? i'm now cleaning the carburator so let's hope it will woorks now.

tomas

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Thu, Nov 27, 2008 3:40 AM

Old Magnet

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Reply to sweman:

Hi!
Thank you!
I put in new gasoline because it woldn't go at all on the old one, and yes it's solid wires, but the sparkpluggs are probably not the right one, any idea what can i use? i'm now cleaning the carburator so let's hope it will woorks now.

tomas

If it has Champion plugs get rid of them and see if you can get NGK's.
A-6 if they are 18mm or BP-4 if 14mm. It's getting harder to get the right plugs as they should be the non-resister type.

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Thu, Nov 27, 2008 8:09 AM

quinq

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Reply to Old Magnet:

If it has Champion plugs get rid of them and see if you can get NGK's.
A-6 if they are 18mm or BP-4 if 14mm. It's getting harder to get the right plugs as they should be the non-resister type.

Old Magnet, What would be the NGK# for a D4 6U pony?? Could you fill me in on the difference you find in the different brand plugs?😊
Thanks for your time, quinq

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Thu, Nov 27, 2008 9:06 AM

Old Magnet

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Reply to quinq:

Old Magnet, What would be the NGK# for a D4 6U pony?? Could you fill me in on the difference you find in the different brand plugs?😊
Thanks for your time, quinq

quing,
Same two numbers for all the pony motors using NGK plugs......Autolite plugs are also OK.....haven't experimented with others.
Vintage Champions were good......ran H10's in flathead fords as long as I can remember but current production since about the late 60's are garbage.

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Thu, Nov 27, 2008 9:58 AM

sweman

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Hi!
Wroooooooooom tjohoooooo , now D7 runs again, I had changed one cog under the magnet, and thank you for the tips about the sparkplugs ,i buy new ngk pk-4 and it works good.

Thanks for all good advice.

Tomas

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Tue, Dec 2, 2008 4:01 AM

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