cool head domes for a 4mm stroke - Yamaha ATV Forum
 
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post #1 of 8 Old 09-13-2005, 01:12 PM Thread Starter
 
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cool head domes for a 4mm stroke

i bought a used cool head i want to install on my 4mm stoke banshee it does not have a spacer under the cylinders it has a extra thick head gasket which i cant use with the cool head so i need to mill the domes it has 22cc domes in it i think how much do i need to mill of it and in what location i also am not sure about the port timming with the stroker if its off or not how do i need to check the cylinders have been ported some before stoker was installed thanks for any help Mike 98 shee with 400cc bored and stoked t5 pipes stock carbs boysen reeds toomey 2into1 airfilter
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post #2 of 8 Old 05-20-2007, 10:33 PM
 
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Call Mod quad they sell domes for the 4 mill that are already milled to fit. the owner of the company runs that setup
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post #3 of 8 Old 05-20-2007, 11:25 PM
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Check your compression and see what its at now. Make a decision on wether or not you want to run race gas. Then, you need to buy some small domes, then have them milled so you dont surpass your desired compression level.
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post #4 of 8 Old 05-20-2007, 11:32 PM
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Talk to Noss Machine. www.nossmachine.com He makes the noss head wich usese the same domes as the prodesigne head. He makes all kinds of custom domes. That is really what you need. Just tell him what your running and if you want to run race fuel. He will get you hooked up.

03 Limited Edition Raptor Hot Rods 720cc Stroker, Megacycle x-4 cam, Sparks 6X Big Core Exhaust, 35mm Keihin FCR's.

97 Yamaha Banshee - F.A.S.T. Dune Ported 4mill Stroker, CPI Pipes, Keihin PWK33's, Direct Drive Lockup,
158 main jets, CEL Needles on the middle clip, 45 Pilots.
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post #5 of 8 Old 05-21-2007, 11:46 AM
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Quote:
Originally Posted by Snopczynski
Check your compression and see what its at now. Make a decision on wether or not you want to run race gas. Then, you need to buy some small domes, then have them milled so you dont surpass your desired compression level.

Personally I think he might risk the pistons hitting the domes if he compression tests it with the domes he has now since they have not been cut out to allow for the 2mm higher stroke.

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'96 Banshee - Full Ported 385cc 4mil Stroker
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post #6 of 8 Old 05-21-2007, 12:39 PM
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They will hit if they are regular domes

03 Limited Edition Raptor Hot Rods 720cc Stroker, Megacycle x-4 cam, Sparks 6X Big Core Exhaust, 35mm Keihin FCR's.

97 Yamaha Banshee - F.A.S.T. Dune Ported 4mill Stroker, CPI Pipes, Keihin PWK33's, Direct Drive Lockup,
158 main jets, CEL Needles on the middle clip, 45 Pilots.
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post #7 of 8 Old 05-21-2007, 10:05 PM
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Oh, so he doesn't have it assembled and hasn't had his domes milled for his stroker crank yet then! You need to talk to a motor guy and have your domes cut then. I would recommend the guy who ported it myself, or try Dave Moore, or Patriot Racing.
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post #8 of 8 Old 09-04-2018, 03:21 PM
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4 Mill cub 38mm pwk

WhichNeedle should I use cel or dgh the carbs are 38mm pwk air strykers
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