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Milling A Stock Head


blue95shee

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I have a 95 Banshee with DG pipes (junk and hopefully soon to be gone to make way for Toomey T-5's) a Trinity 2 into 1 carb kit with unknown jetting and a K&N filter. I want to do some more mods to it. Can you just remove the head and have it milled?? How muchshould it be milled?? I can and will run octane booster if needed. I heard that the shape of the combustion chambers is important so if you just mill a stock head you'd be changing the shape/dimensions. Is this true?? What other cheap and easy mods can I do. Timing advance key??

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Cheap mods. You can mill the head. Cheap, yet effective power. You will be changing the squish. Not the dome shape. More compression. Cheap, and you will like the increase. You can also have the flywheel lightened for a snappier throttle response. Both can be done for slightly over $100. If you want to mill the head, do not take more than .030" off the stock head. You should be able to run pump fuel. Definitely worth it!!!!

You could also get a degree key, or mod your stator plate to advance the timing. Go to about +3 or +4 to stay on pump fuel...

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hey boonman i had been thinking of havign my flywheel lightened but had a ? first

will my powerband hit harder with the lightened flywheel

i understand fully how the lighter flywheel is able to spin up to speed much easier and all that good stuff but i really like my smooth powerband that i have now and myself not being a very experienced rider wanted to know how it would effect the way that the power comes on

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hey boonman i had been thinking of havign my flywheel lightened but had a ? first

will my powerband hit harder with the lightened flywheel

i understand fully how the lighter flywheel is able to spin up to speed much easier and all that good stuff but i really like my smooth powerband that i have now and myself not being a very experienced rider wanted to know how it would effect the way that the power comes on

 

The powerband will not hit harder, just sooner with a lightened flywheel. You will like the results, everyone that tries it does.

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Cost is $65 with shipping included

 

from who?

From boonman. He made a post advertising on here, and threw it on ebay too. Hey boonman, is this something you're only gonna do for a short period of time or could I shoot you a pm and have you lighten a flywheel for me in a couple months or so? THANKS!! :)

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I got my head milled from DAB racing for $45.00. Got the fly wheel lightened for like $20.00.

Best two mods for that price ever. Going by just the cold cranking pressure Dave took my head to about a 20cc from stock. He said its as far as he could go. He also had to rechamber the domes for proper squish clearance.

 

On the flywheel lightening thing, I've thought of building the tooling to do this in on of my CNC lathes. How much is a new flywheel??

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On the flywheel lightening thing, I've thought of building the tooling to do this in on of my CNC lathes. How much is a new flywheel??

 

A stock flywheel from Yamaha is just about $370, depending on which website you check.

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On the flywheel lightening thing, I've thought of building the tooling to do this in on of my CNC lathes. How much is a new flywheel??

 

A stock flywheel from Yamaha is just about $370, depending on which website you check.

HOLY SHIT!!!!!!!!!!!

:o I damn near fell out of my chair....There doesn't seem to be $370 worth of anything in that flywheel, other than the "where else you gonna get one?" factor.

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