aftermarket exhaust for small bikes?

Discussion in 'Technical & Motorcycle Services' started by Klaus, Jun 7, 2007.

  1. Klaus

    Klaus Ol'Timer

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    Just thumbed through a local bike magazine and saw some nicely done Waves, Finos and li'l Kawasakis. Lots of colorful bikes, lots of fantasy and decent work; some good ideas, too, like springs under the seat of a Fino.
    I was surprised to see some Supertrapp and Cobra exhaust mufflers on some of these bikes, and wonder where they got them. Never seen any small mufflers by those companies before. Can't find 'em on their websites, only exhausts for big bikes.
    Does anybody know where to get them, or more info like a catalog or something?
     
  2. Klaus

    Klaus Ol'Timer

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    . . . nobody cares about the small guy . . . [:(]
     
  3. mikerust

    mikerust Ol'Timer

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  4. Klaus

    Klaus Ol'Timer

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    That was the surprise when I saw the pix in the bike magazine - COBRA and Supertrapp exhausts for samll bikes! Next time you're in a amgazine store grab a mocyc magazine, they do amazing things with their Waves and Nouvos and Finos and Novas...
    I know all the aftermarket mufflers available in the european and american markets, you're right, they way big (for BIG bikes) and come with big diameters. But there seem to be products for the asian (small) market, too.
    Of course there are tel ## in the mag ads, but they probably don't speak english (haven't tried yet) rather ask here; also the info would be more reliable on a farang website . . .
     
  5. irv327

    irv327 Active Member

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    The real problem is finding larger-than-stock jets once you've opened up the exhaust and intake. Most shops, I've been to over 30, don't know what a jet is let alone that there are different sizes. Finally, I stopped at a backyard tuner shop in Siray east of Phuket. They had made a ream from a broken-off piece of hacksaw blade. Simply use a bench grinder to make the blade into a point, similiar to a bee stinger. The ream also acts like a gauge; the farther the jet slides down the taper the greater the I Dia.
     
  6. Klaus

    Klaus Ol'Timer

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    I played with carb settings and jetting on big singles, that's where a real difference occurs if you change things. On these little low-compressed two valvers you can change a lot without needing to rejet. A Honda Wave wouldn't backfire or misfire if you'd run it without any kind of airfilter or exhaust. I rode my CBR 150 just with a header, after it was totally flooded in rainy season - no hick-ups, like nothing changed.
    I just want to play around with the sound and looks a little...
     
  7. irv327

    irv327 Active Member

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    no need to rejet?? What goes on with people in this part of the world? I must be imagining the backfires and the topend flatspot.
     
  8. Klaus

    Klaus Ol'Timer

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    Like I said - on my 650 singles I had to rejet, on these li'l things here I don't, and the bikes run fine . . .
     
  9. irv327

    irv327 Active Member

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    Germans don't know anything about engines.
     
  10. Klaus

    Klaus Ol'Timer

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    irv321, you're lucky that I'm one of the very few germans who have a sense of humor, or else I would personally improve YOUR jetting . . .
    Germans INVENTED engines, but you wouldn't know that, being Irish, or from some country where they have to IMPORT vehicles . . . or do make any motorcycles where you're from, you ignorant little Irish piss-ant, you . . .

    :) :) :) :) :) :) :)
     
  11. anon

    anon Member

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    So Al Jazari and Leonardo Da Vinci were German?... and not all irish are small or ignorant.
     
  12. tiswas

    tiswas Active Member

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  13. Klaus

    Klaus Ol'Timer

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    Well, I guess irv wasn't serious when he wrote that, either . . .

    . . . and Anon, we're talking internal combustion engines here, like the ones they put in motorcycles, you dunce!

    :) :) :)
     
  14. anon

    anon Member

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    Actually klaus, you said " engine" , not "internal combustion engine." Anyway, it still wasn't invented by a German.
     
  15. tiswas

    tiswas Active Member

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  16. Klaus

    Klaus Ol'Timer

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    Yes, I did say that, anon, but maybe you've noticed that this is a site about motorcycles, so we are not talking about parts that make a wing move or some such.
    So who do you think invented the internal combustion engine?
     
  17. Klaus

    Klaus Ol'Timer

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    Anon, you may argue that certain people invented an internal combustion engine, but what if they were unreliable, inefficient and thus useless so that they wouldn't be worth being put into production? Putting a piston in a cylinder is a great idea, but worthless if it can't be applied to anything.
    The point is to invent something that functions and can be used by people all over the world. And there I would say that Otto, Daimler, Benz, Diesel, Maybach and later Wankel were the men of their time - all germans.
    If you want to split hairs, fine, go ahead.
     
  18. jon

    jon Ol'Timer

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    klaus:back to the original post about exhaust systems.When a thai mechanic saw my supertrap system he said something about it being original and not made in Thailand and infact he was the second person to say that to me. So I suppose there is someone making replicas here.
     
  19. Klaus

    Klaus Ol'Timer

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    If someone is making replicas here, they wouldn't be for big bikes because there's not a big market - people who spend over half a million baht on a bike order originals. But small bikes would definitely a market. Just where to get a hold of them things?
     
  20. mikerust

    mikerust Ol'Timer

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  21. Klaus

    Klaus Ol'Timer

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    I have the feeling you didn't really understand my post. Maybe somebody put a piston in a cylinder and it made a few rotations at the crank before it overheated or the bearings fell out, if there were any - if that means "inventing", okay, then somebody invented it. But to work for decades to make it usable for mankind, that's the real achievement here. And that's what the people I mentioned above did.
    What did the austrian inventor do AFTER he rode the 500 feet with his cart? He desigend "a vehicle that briefly ran 10mph". Okay, that's an achievement in 1864, but what then? Why did it take another 30 or 40 years to build an ICE that could be actually used?
    So if you want to be over-correct, several people "invented" the ICE, then disappeared from view (accidents?) never to be heard of again. But the names of Benz, Otto, Diesel and others come to mind when the ICE is mentioned.
    BTW, the first engines (oops, internal combustion engines) were two-strokes; Otto invented the four-stroke, and Diesel made the Diesel, not Otto. And Mazda still builds cars today with a Wankel-engine.
     

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