Safety wire question - RC390

Discussion in 'Tech Area' started by StreetHawk, Jan 12, 2018.

  1. StreetHawk

    StreetHawk New Member

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    Greetings,

    In the process of safety wiring my rc390 and have a question for anyone with an answer...

    Looks like the coolant cap for this bike can't be drilled due to its size/shape. What have others done with this issue?
    Also, the oil drain plug containing the filter screen...that's also a bastard to drill as it is hollow. Can you get away with siliconing that?

    Cheers!
    Aaron
     
    Last edited: Jan 12, 2018
  2. Andrew Marles

    Andrew Marles Moderator

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    Might have to run an aftermarket rad cap that is a more traditional shape and easier to drill. Same with the drain bolt, definitely need to figure a way to wire that. They've been doing it since 2015 in MotoAmerica so you're not the first. I've only ever heard of silicone on an oil drain bolt as a mercy for first-day racers, and that's only if the tech inspector has had coffee. We have a couple of people that race these bikes so maybe they will chime in.
     
  3. Andrew Marles

    Andrew Marles Moderator

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    Google found me this. Looks the same as most other drain bolts that are drilled.

    [​IMG]
     
  4. bigga_boy

    bigga_boy Livin' The Dream WMRC President

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    the 390 does have a hollow bolt but totally able to drill it as pictured above or just straight through (left to right) halfway up closer to the top.
    i have done a few of these as race prep.

    as for your rad cap you can drill the rounded lip. basically where you would grip it with your hands is where i am talking about.
    i have done that as well in the past
     
  5. StreetHawk

    StreetHawk New Member

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    Thanks gents, will give er a go.
     

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