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Old 09-30-2012, 07:57 PM   #38
BigTed
Adventurer
 
Joined: Apr 2009
Oddometer: 10
Quote:
Originally Posted by Scrivens View Post
One of the nicest bikes I've owned out of 60-odd, and just about the perfect big twin if you grew up riding British iron. I put over 6000km on mine in the first 7 weeks I owned it - then slowed down a bit while recovering from a minor accident on my Sportster. I'm currently rolling up about 1200km a month, but it has been a very wet winter. Fantastic economy, handles nicely and it is small and light with a lot of torque. I look forward to getting on mine every day - even riding to work is a blast.

I run Dunlop K70s on mine now as I do a lot of gravel roads and they work far better than the TT100s. K70s handle well if you are used to them too.

The one thing they do need is a decent sound - easily got by taking a hole saw to the muffler tail-pipe and cutting out the band around the inner pipe. (If you don't have a high quality hole saw you can use a small drill bit and simply make a lot of holes in the band and the cut it out with a small punch.) Once that is cut through the baffle simply wiggles out. Remove the remains of the band from the end of the baffle - and inside the tailpipe if you didn't cut it right to the metal - drill a small hole about 1 1/2" in from the end, and a corresponding hole in the underside of the tailpipe, slide the baffle back in and use a short self-tapping roofing screw to hold the baffle in place. Takes a bit of fiddling to get the inner pipe central in the tailpipe as the self tapper bites and screws fully in, but only a couple of minutes. That gives a low burble at idle and a deep burble underway. If you want to go for a slightly louder, deeper sound drill 8 x 1/4" holes about 2" apart in 4 equidistant (ie, quadrant) rows down the baffle. Neither of these make the noise level obnoxious - it is about on par with a standard BSA or Triumph system, and sounds very similar. Leaving the baffle out entirely doesn't make it overly loud, but the sound is a bit harsher. You might also want to stick a marble in the air injection hose between the cylinders as it causes a lot of popping on the overrun as the air goes into the exhaust. (Sounds similar to a badly leaking exhaust gasket.) Not worth removing all the bits and using block plates, and the EFI requires the air-injection electronic unit under the tank to be connected anyway or the error light will come on.
No need to do a bafflectomy on these. There are scads of aftermarket 60's style pipes available ranging from $80 bucks apiece (Burtons Bike Bits) on up to $250 apiece. All will improve the sound immensely.
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