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  1. #1
    Buaidh No Bas howestek's Avatar
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    Riva Head Installation question

    I've installed the Riva Performance Heads on my 1300. The instructions for the head cooling says:

    11a. OE EXHAUST HEAD PIPE APPLICATIONS: Install two supplied 1/2" barbed X 1/4" npt 45*brass fitting into front and center cylinder head. Next, install one supplied 1/2" barbed X 1/4" npt 45* brass fittings into rear cylinder head body.

    (3 heads, 3 fittings. No 90 degree fittings used? Is that right?)

    12a. OE EXHAUST HEAD PIPE APPLICATIONS: Next, attach curved 1/2" OE waterline on the intake side of the OE exhaust head pipe to the 1/2" barbed fitting using the OE hose clamp. Then, attach the 1/2" OE waterline on exhaust manifold side of OE exhaust head pipe to the 1/2" barbed 45* brass fitting in rear cylinder head body using OE hose clamp.

    (What about the 3rd fitting? What about the t-fitting? Which hose goes to which fitting? Does anyone have a picture of the actual installed setup? I presume that heads 1 and 2 are tied together with a t- fitting despite the instructions. Is this correct?)


  2. #2
    Buaidh No Bas howestek's Avatar
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    Nobody has Riva or R&D performance heads??

  3. #3
    txgp1300r's Avatar
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    here ya go brother
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  4. #4
    Buaidh No Bas howestek's Avatar
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    You rock. Thanks for that.

  5. #5
    2000 GPRXP 4tec shooter98xpl's Avatar
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    am I seeing that correct, you have your jetworks valve hooked up into that T off the 3rd head and into the pipe?
    SHOOTER

  6. #6
    txgp1300r's Avatar
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    why yes , thats what you see, I hooked it up exactly per the instructions....there is another way by deleting sipion tube and tapping strainer and running it direct from pump to stinger, this was quicker and what the instructions said to do.there is a restrictor inside the tube between pipe and j.w. valve..it works real good...i idled up a creek full of water mocasins day before yesterday and never got hot or anything...i have water flo starting at 3800......if there is a better way fill me in...

  7. #7
    Mongoose's Avatar
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    I did my last jetworks exactly the same as txp. No problems at all
    Did not use the main jet restrictor that came with the kit tho.
    I think this way will cost a few rpm's, but not many. (30-50rpm)

  8. #8
    Moderator RX951's Avatar
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    I am gonna run mine like this too guys !



  9. #9
    WATER WOODY's Avatar
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    Billy,you think there is enough pressure there? Seems to me that the water will pass bye the T since the water flows through the pipe with ease? Im having doubts about this but tell me something im not seeing here.

  10. #10
    Moderator RX951's Avatar
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    Quote Originally Posted by WATER WOODY View Post
    Billy,you think there is enough pressure there? Seems to me that the water will pass bye the T since the water flows through the pipe with ease? Im having doubts about this but tell me something im not seeing here.
    No difference than COSCAS, still coming off the pipe jacket in general......but we'll see when I goto the ramp....if not no biggie, I'll reroute it.

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