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Old 04-20-2012, 04:30 AM   #16
john479
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Looks very nice, love the colour but I especially like that tail. So nice
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Old 04-20-2012, 05:40 AM   #17
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Looks very nice, love the colour but I especially like that tail. So nice
The seat's from a Bultaco Astro. 70s flat tracker.
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Old 05-24-2012, 07:05 PM   #18
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OK, I've joined a few bits of bent tube together with half an old expansion chamber that a mate gave me. It looks a bit like an exhaust, hopefully it might fit the bike.
I'll check when I get home this afternoon.

It will be getting some kind of silencing on the end . That's the next task.

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Old 05-25-2012, 07:11 AM   #19
bk brkr baker
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CB 350 front brakes have a torque strap that connects to the fork leg . I believe your front brake to be from an earlier 305.
I run a CB350 brake on the front of my Ducati Vintage racer.
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Old 05-25-2012, 03:20 PM   #20
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Originally Posted by bk brkr baker View Post
CB 350 front brakes have a torque strap that connects to the fork leg . I believe your front brake to be from an earlier 305.
I run a CB350 brake on the front of my Ducati Vintage racer.
I knew there was something amiss about it. The wrecker I bought it off said it was a CB350, but.... when my mate machined the little flange off to stop it binding he noticed a Yamaha symbol inside. It seems to be an early Yamaha brake plate and a CB350 hub!
I'm waiting for the shoes to be re lined right now and hopefully it will all work soon.
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Old 05-25-2012, 03:28 PM   #21
Al Tuna
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That pipe looks damn good! Hope it fits.
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Old 05-25-2012, 06:26 PM   #22
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Yeah, that pipe does look good. Nice job.
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Old 05-25-2012, 07:12 PM   #23
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It fits!




The curve worked out about right. It tucks in just how I hoped.



I've also been given this muffler. I'm thinking about trying to make it fit a bit like this

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Old 05-26-2012, 02:08 AM   #24
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That pipe is well smart How about just fitting a small baffle & turning up an nice ally end-cap to tidy it up - less is more
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Old 05-26-2012, 02:30 AM   #25
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That pipe is well smart How about just fitting a small baffle & turning up an nice ally end-cap to tidy it up - less is more
Yeah, good idea. The only worry is that it has to comply with racing rules which are 103 dB measured at half a metre from the exhaust at a prescribed RPM. That sound a lot, but when the noise meter is so close, it's quite an ask from a small baffle. I definitely agree that less is more, it's how much less I can get away with.
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Old 07-01-2012, 03:15 AM   #26
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It's pretty well finished.

A few details to be tidied up. The problem is, that although it starts first kick ( without the choke) it runs really rich and won't accept full throttle without spluttering. Also it idles best with the pilot screw fully in. Gotta be something wrong in the carb.

I'm thinking blocked air passage somewhere.



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Old 07-01-2012, 03:55 AM   #27
bikerfish
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those needles and seats were known to wear out, leading to all kinds of carb issues. I've replaced a few of them and they ran like new afterwards.
that thing looks REALLY nice!
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Old 07-01-2012, 05:00 AM   #28
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those needles and seats were known to wear out, leading to all kinds of carb issues. I've replaced a few of them and they ran like new afterwards.
that thing looks REALLY nice!

Thanks, I'll have a look at that.
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Old 07-12-2012, 06:27 AM   #29
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Nice work on the XL. Thinking outside the box!

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Old 07-13-2012, 02:54 AM   #30
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Nice work on the XL. Thinking outside the box!

Ray

Thanks.
I think it's finished now. I have a race next weekend . I put a dellOrto carb on it and set the points up properly and it seems to run pretty well now. My neighbours didn't like it too much, but....
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