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  1. #1

    Join Date
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    Milling a stock head?

    My brother in-law has all the machines to mill my stock head..but he doesn't know what to mill it to, or however he asked it...
    Anybody got specs for this? OR numbers? (Using a stock head from an 01' 1200R.)
    Sorry...if you need more info..I have a Solas 13/19 and a few other aftermarket jobs done to it...d-plate, grate, pump kit, etc. If you need info? And would I need anything else like spacers on my stock bolts? Or how can I get the nicer, newer bolts that I use with my R & D head? Thanks for any help!
    pics would be great if anyone has them?
    [email protected]


  2. #2

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    anybody?

    Nobody knows on either forum? Somebody knows...hahaha
    Can you guys help me out? Please?
    Thanks again fellas!

  3. #3
    SpeedJunky's Avatar
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    You need to leave the head milling to the experts. Riva only charges $120 and groupK charges $180. Not worth screwing up your head for that kinda money.

  4. #4
    ABBOTT's Avatar
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    Re: anybody?

    Quote Originally Posted by DaFischQC
    Nobody knows on either forum? Somebody knows...hahaha
    Can you guys help me out? Please?
    Thanks again fellas!
    Give it some time so that people can read this post. More answers will come tonight i'm sure as more people check in to see whats happening.

  5. #5
    '02GPRider's Avatar
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    You might try asking Lowell Horning. His contact info can be found at 2-stroke-porting.com.

  6. #6

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    Thanks....

    You need to leave the head milling to the experts
    Thanks for your opinion dude..but he IS an "expert" in machining, etc...just has not done it to a jetski head.
    I'll give some other folks time to poke their heads in here...just thought it could be done..and for me it's free...and won't get screwed up. I doubt Lowell is gonna tell anyone HOW...wouldn't that cost him money?, and I can hardly blame him for that.
    I'll see what happens...maybe just a dumb idea anyway....thought more people had it done, but most likely most folks went aftermarket heads?

  7. #7
    '02GPRider's Avatar
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    Re: Thanks....

    Quote Originally Posted by DaFischQC
    I doubt Lowell is gonna tell anyone HOW...wouldn't that cost him money
    Read this: http://rivaforums.com/groupee/forums...682#4011096682

  8. #8
    Hydrotoys's Avatar
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    The reason no one has come through for you on this is simple. As you flat cut the head, the squish area changes. The squish angle AND area is very, very important to the combustion process. Think of a semi-round surface intersecting with an angled flat surface. This area gets changed if you flat cut the head.

    So, with this in mind, if you have your machinist flat cut your head, your squish area will be changed, and it will negatively effect your combustion process. The actual bowl of the head NEEDS to be adjusted after the flat cut on the head.

    The response to call Lowell is not a bad one. Explain what you are doing, and why. You might first read up on his page about squish area.

    Also, if you machinist can not cut the bowls, then really, you need to find someone who can.

    LOTS OF FOLKS flat cut their head and their ski runs fine. That don't make it right.

  9. #9

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    Excellent!

    Thanks for the info! Thought it would be simple and a quick way to mod my second 1200r....sounds like it might be worth it to send it to a pro or not do it at all. GREAT advice...thanks fellas!

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