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 spark plugs 
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Post spark plugs
whats the best kind of spark plugs for the mud buddy vanguard 45 mag?


Sat Oct 27, 2012 8:35 pm
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Post Re: spark plugs
champion, NGK


Sat Oct 27, 2012 8:47 pm
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Post Re: spark plugs
Agreed, I have had better luck with NGK in most engines but Champions are pretty good. Dont wast money on anything fancy or advertising 20% more power or anything like that. In reality you cannot feel the difference between a standard plug and a $12 plug other than in your wallet when you change them every season.


Mon Oct 29, 2012 1:56 pm
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Post Re: spark plugs
I don't know if it's just coincidence or what, but last 3 motors I've seen with fouled plugs were all NGK. I've had best luck with Champion and Autolite

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Mon Oct 29, 2012 3:29 pm
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Post Re: spark plugs


Mon Oct 29, 2012 3:32 pm
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Post Re: spark plugs
I like champion the best. Seem to get a better read for jetting too

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Mon Oct 29, 2012 3:52 pm
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Post Re: spark plugs
I run NGK's and haven't had a problem.


Mon Oct 29, 2012 5:42 pm
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Post Re: spark plugs
Now i will tell you this if they aren't gapped right and 7 times out of 10 right out of the box they are not, then yeah you will see some serious fouling but when gapped right they are great. I ran them in my motor cross bikes which were four stroke


Mon Oct 29, 2012 5:48 pm
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Mon Oct 29, 2012 5:53 pm
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Mon Oct 29, 2012 5:58 pm
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Post Re: spark plugs
Gapping mine at .30

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Mon Oct 29, 2012 6:00 pm
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Post Re: spark plugs
You can run what ever you want, i found that through my motor those 2 worked the best


Mon Oct 29, 2012 6:11 pm
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Post Re: spark plugs
I've been running stock plugs.

Haven't noticed a bit of difference.

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Mon Oct 29, 2012 6:15 pm
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Post Re: spark plugs

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Mon Oct 29, 2012 6:20 pm
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Post Re: spark plugs
I put new stickers on mine & gained .0896521 mph!!!

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Mon Oct 29, 2012 8:07 pm
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Post Re: spark plugs
I just spray ether in the carb and it hauls ass and turns some good rpms.

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Mon Oct 29, 2012 8:35 pm
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Post Re: spark plugs
But seriously i just run some champions and they fine. It's a spark plug and a Briggs engine it's not rocket science

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Mon Oct 29, 2012 8:40 pm
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Post Re: spark plugs
champions are good plugs

x2^^

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Tue Oct 30, 2012 11:23 am
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Post Re: spark plugs
Autolite 3923's


Tue Oct 30, 2012 12:51 pm
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Post Re: spark plugs
Y'all recommend still using thoes plugs with a highly moded motor

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Tue Oct 30, 2012 1:20 pm
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Post Re: spark plugs
Yes

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Tue Oct 30, 2012 2:00 pm
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Post Re: spark plugs
Found this on another thread:

Champion-RC14YC
NGK-ZFR5F-11
BOSCH-7527 or FR8 DC

gapped at .030


Tue Oct 30, 2012 2:11 pm
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Post Re: spark plugs
Why the Bosch has two diffrent ones

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Tue Oct 30, 2012 3:29 pm
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Post Re: spark plugs
Electricity will take the path of least resistance. Those fancy multi prong plugs will just mak eyour wallet lighter.

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Tue Oct 30, 2012 3:43 pm
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Post Re: spark plugs
Does a 31 use the same plugs mentioned above?


Tue Oct 30, 2012 4:08 pm
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Post Re: spark plugs
My dad runs the app3923's gapped at 35 in his 32 which is the same as your 31. I run them in my 36 as well. Haven't had a lick of trouble out of either motor.


Tue Oct 30, 2012 4:56 pm
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Post Re: spark plugs
I have a stock GTR 35 (carb) motor and live in a cold climate. I just changed my plugs to RC14YC's after reading on the Briggs website that they could be better for cold weather starting and after seeing that part number referenced on several maintenance posts here. I gapped them to 0.030.

When I pulled the old plugs I saw they are RC12YC, which is my understanding run colder and help prevent pre-detonation on modded engines.

Would this be a factor in harder starts for cold weather? When would you choose the hotter plug (i.e. what should I be looking for--burned plugs, plugs smelling like gas, etc.)?

Thanks

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Fri Nov 02, 2018 8:37 am
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Post Re: spark plugs
Consider the 14 a small step warmer plug. This does not mean it's a hotter spark. The tip of the spark plug runs a little warmer to keep carbon burned off. Run them and see if they help. It's not much of a heat change from a 12 to a 14


Tue Nov 06, 2018 1:30 am
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Post Re: spark plugs

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Tue Nov 06, 2018 6:36 am
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