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  1. Addressing some flat spot when going WOT

    This has everything to do with a motor refresh I did over the winter. The new engine doesn't like the old engine's carburetor settings. So right after, I dropped the main jets one step. But was...
  2. A little ride story

    Circumstantial riding last week. Got a wild hair after fueling in a couple gallons. Told myself that it was okay to put some miles on the bike up into the nearby mountains, just go easy, lean the...
  3. What is one diffuser worth, removed?

    When it contributes 5% to the gap of combined diffusers with a closed end-cap, it's enough to drop AFR on my 899cc sportbike as follows:

    I don't know how to calculate surface area, so I'm just...
  4. Wide-band Lambda AFR reverse SuperTrapp tuning and FAQ confirmation

    As the SuperTrapp FAQ recommends, you should alter the number of exhaust diffusers, ride and determine if performance is more or less to your liking. Well, I now have a tool to take the guesswork...
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    The bike is up to 137K miles and still scaring animals

    While I stuck to the sunny side of a windy foothill route I'd pass one pasture after another with either cows or goats or whatever. On up ahead I could see what looked like one of the goats had...
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    Site registration disabled

    Someone might want to check on that.
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    This may be some sort of sportbike record

    I'm fairly confident of that. Only way to tell is if someone can find or someone comes forth with something to the contrary. I've been a ZX-9R owner for 11 years and I've never seen or heard of...
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    More to come this year too.

    She's over 134,000 miles at this point. I can sometimes see how my harsh riding is taking a told on her, but to give you a glimpse of what we've been up to:

    Post ride bug splattered...
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    Reposting Just threw together some...

    Reposting




    Just threw together some powerwheelies on the sE1, four in total, but with two you get the idea.

    Refresher: This is the California EVAP emissions model of the ZX-9R, the one...
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    End of 2018

    Reposting: 2018 Year End
    https://uniim1.shutterfly.com/ng/services/mediarender/THISLIFE/021044849632/media/54148818562/medium/1567784118/enhance/SuperTrapp.jpg
  11. Don't take my word for it, see for yourself.

    This is what I mean. Whether it's getting down and having some thrills with the horizon tilted or the previous weekend where it's zipping across the country, there's something very unusual about...
  12. 240 Mile Per Tank ZX-9R Demonstration Playlist

    The full four video playlist for short.
    https://i.ytimg.com/vi/OE9mNFOaAvk/hqdefault.jpg?sqp=-oaymwEXCNACELwBSFryq4qpAwkIARUAAIhCGAE=&rs=AOn4CLAoHn3bcL3SHP3dKpFdlUfvo8lW1w
  13. Follow along with the 240 mile per tank SuperTrapp shod ZX-9R Ninja

    For those not familiar, a ZX-9R is a 899cc late 90's early 00's Kawasaki Ninja sportbike of the liter bike class genre. A true 175 MPH RAM Air sleeper. Cycle World lists the bike's top speed at...
  14. This makes two SuperTrapp clad Ninja Sportbikes that are leaping the charts

    First off, I recently repeated some modifications to one of my ZX-9R's fueling & SuperTrapp diffuser settings that are unconventional. Well the carb settings are, not so much on the ST end. They're...
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    Not mine, but as an example of a SuperTrapp equipped 900 cc sportbike

    Video clip.

    https://www.youtube.com/watch?v=kMDEl7ML14s
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    Fall 2017 update

    2017 has been a continuation of 2016's superlative riding season. My SuperTrapp is such a great exhaust! It never needs maintenance, other than cleaning and the occasional sanding to restore its...
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    This one is a little different than your typical,...

    This one is a little different than your typical, watch-me-rev-my-bike-video. This one was made for another forum where other riders of the same type of bike wanted to hear how others' bikes...
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    2017 update. I think the bike is even more terrifying to deer now than ever.

    I have changed a couple things on one of my SuperTrapp equipped Ninja sportbikes, I've added two additional plates and raised the main jets one-half step. The result is the dB exhaust note is that...
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    Why does your post include a Web link to your...

    Why does your post include a Web link to your personal Web page? Isn't that what this forum is for, to answer questions related to the information you've provided?
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    Can you post the dyno chart showing the bike's...

    Can you post the dyno chart showing the bike's AFR readings? It's easy to say, just add more discs or put on an open end-cap or that someone thinks the pipe was a little restrictive. Problem is, if...
  21. I suppose I just took it for granted that the OEM...

    I suppose I just took it for granted that the OEM CAT system was in the muffler, so figured that's where I'd put this one, but your points are well taken. I should focus on getting the CAT insert...
  22. Looking to add an inline catalytic converter to return bike to cleaner emissions.

    My two 13" universal aluminum racing series mufflers obviously do not come with cleaner emissions capabilities found from the stock mufflers. There are many manufacturers now that make catalytic...
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    What could be better than owning a one of a kind motorcycle? 2016 update

    I'm sure SuperTrapp would like nothing better than to have half the motorcycle fleet out there sporting their tuneable mufflers. But I have to tell you that I like having such a unique looking...
  24. Self promotion, but also SuperTrapp promotion at WSBK 07/08 - 07/10 Mazda Raceway

    Post 4th of July weekend, 2016.

    I'll have one of my SuperTrapp outfitted ZX-9Rs at the races in California this upcoming weekend, all cleaned up and roadworthy. If SuperTrapp has a booth or...
  25. Many MotoGP teams use fishnet metal screens to cover their exhaust megaphones

    Has SuperTrapp approached any of these teams to suggest that if they're looking to prevent foreign objects from entering their exhaust systems, why not take advantage of the unique spark arresting...
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