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Old 01-29-2013, 10:58 AM   #1
Tryn
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Default Milling Heads Briggs V twin

I milled the heads on my Briggs V Twin 294447 14 hp v twin and shimmed the springs and put in a rev kit. It seems to sputter at high rev. Did I mill it to much?
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Old 01-29-2013, 02:43 PM   #2
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Default Re: Milling Heads Briggs V twin

sounds like it's needs more gas have you put a bigger jet in yet??
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Old 01-29-2013, 02:56 PM   #3
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Default Re: Milling Heads Briggs V twin

Quote:
Originally Posted by Tryn View Post
I milled the heads on my Briggs V Twin 294447 14 hp v twin and shimmed the springs and put in a rev kit. It seems to sputter at high rev. Did I mill it to much?
How much did you take off?

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Old 01-29-2013, 02:57 PM   #4
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Default Re: Milling Heads Briggs V twin

he said in another post about .060
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Old 01-30-2013, 10:16 AM   #5
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Default Re: Milling Heads Briggs V twin

High compression needs high octane
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Old 01-30-2013, 10:32 AM   #6
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Default Re: Milling Heads Briggs V twin

Yup,93-Minimum(they recommend at least 89 stock!).Timing,Spark-Plug heat-range and jetting come into play when you start messing with compression.What exhaust do you have?A restrictive exhaust is even worse with higher compression.
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Old 02-01-2013, 10:46 AM   #7
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Default Re: Milling Heads Briggs V twin

I have stock carb and stock exhaust. I have not put the motor in the cart yet.
I am planning on putting a 2 brl carb and a header from cp on it. I may just go back to stock heads. What do you all think
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Old 02-01-2013, 10:47 AM   #8
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Default Re: Milling Heads Briggs V twin

I milled it about .60
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Old 02-01-2013, 10:48 AM   #9
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Default Re: Milling Heads Briggs V twin

Can I rejet the stock carb?
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Old 02-01-2013, 10:54 AM   #10
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Default Re: Milling Heads Briggs V twin

you should be able to re-jet it. high octane gas is bad for those engines it makes them run alot hotter which is terrible on the engine and can egg shape the cylinders. i think if you jet it out it should be fine..
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