New exhaust problem

Discussion in 'General 1000RR Discussion' started by Cookster, Dec 28, 2021.

  1. Cookster

    Cookster Active Member

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    Hi guys I've recently fitted a new yoshimura system to the blade (08 plate) while running it up could smell burning plastic, looking at the fan and it's very close to the exhaust and starting to melt. The fan kicked in and is now hitting the exhaust where its melted sounds bloody awful. Any idea what could have gone wrong??
    20211228_094755.jpg
     
  2. Boothman

    Boothman Elite Member

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    No experience of this so just thinking out loud. Apologies if this sounds patronising, that’s not how it’s meant, but sometimes you can’t see the wood for the trees.
    Firstly - Are you sure it’s the correct Yoshi system for your bike?
    Confirm that the radiator has gone back in the correct spot (as in not too far back/up/down) and at the correct angle?
    Are you able to compare the header profile of the original and new system and if so are they the same?
    Are the headers seated fully in the exhaust ports?
    Are they at the correct angle (as in not being push forward by the rest of the system)?
    Does the rest of the system pick up correctly on the other mounts?
    Hope this helps in your diagnosis of the issue.
     
  3. Cookster

    Cookster Active Member

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    right then guys did a bit of digging and found out this is a common problem after fitting a full system as the one pipe comes out further than the original, i spaced out the lower rad bracket and trimmed the fan with a dremmel and all seems good again.

    fan cuts in and running normal temp again with no melting.
     
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  4. Cookster

    Cookster Active Member

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    must admit there were quite a few posts on why bother with a full system when the originals are good enough ect ect .

    but putting the originals back on was not an option.
     
  5. warren smart

    warren smart Active Member

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    Just be careful when trimming the fan, did you have to trim the blades as they’re a balanced item.
     
  6. Cookster

    Cookster Active Member

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    yes i did mate, though all in the same place so fingers crossed its ok.
     
  7. Scuba Steve

    Scuba Steve New Member

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    I would also suggest wrapping the headers
     
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  8. Cookster

    Cookster Active Member

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    is wrapping them ok?? dont they crack if there wrapped??
     
  9. warren smart

    warren smart Active Member

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    I’ve wrapped numerous on my bikes and never had a problem.
     
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  10. Cookster

    Cookster Active Member

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    il see if i cam get some and do it in situ , the fairings are a pain in the ass to get off.
     
  11. warren smart

    warren smart Active Member

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    Will be a nightmare in situ if you use wrap, a few companies make sleeves that you clip around if you want to do it in situ.
     
  12. Cookster

    Cookster Active Member

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    seems a good idea, its only number two exhaust pipe that caused the problem, might be worth just doing that one.
     

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