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Old 03-02-2013, 12:19 PM   #391
Jacl-Kampuchea
Booze Merchant
 
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Joined: Sep 2010
Location: I see Drunk People.
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That thing sounds sweet! Great work (except for muffler mounting)
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Old 03-02-2013, 09:08 PM   #392
Scott_PDX
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Joined: Oct 2010
Location: Portland...the newer one on the left side.
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What is that I hear?......The rich sound of SPeeD!
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Old 03-02-2013, 11:11 PM   #393
DustyRags
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Joined: Nov 2012
Location: The Beast, California
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There is absolutely nothing polite, quiet, neat, soft, nice, clean or in any way civilized about that bike. My god, that's going to make every bastard on a BMW shit his pants when it shrieks by.
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Old 03-02-2013, 11:56 PM   #394
Luke OP
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Allan and Ray helped out on Friday, we got a lot done.

For convoluted reasons I wanted to check the cam timing, we did and it was right. Since we already had the top of the motor often we figured we might as well re-torque the head. It's the good thing we did. I turned the first bolt the wrong way and it came loose in less than an eight of a turn. Not good. We weren't sure whether to loosen each bolt before re-torquing it or not, but they were all so loose that it was moot. All of the bolts were at around 5 ft lbs. We tightened them up to the 20 ft lbs that they are supposed to be.

We also checked the valve clearances; one was slightly loose, three or four had tightened up. None were down to zero clearance, though.


Next up was the jetting. I had leaned out the needles because the bike was blowing black smoke, that seemed to fix it but it didn't run very well. We tried a couple of richer settings which worked much better. The bike used to be difficult to get going from a stop without stalling, now it does burnouts with ease. The jetting's hardly perfect, but it's close enough to ride. The gas tank had always looked clean, but since I was also having issues that looked like fuel delivery we drained it and cleaned the petcock. It was all clean, but we also discovered that the petcock settings are not off-on-reserve like I thought, they are actually off-on-off. Another mystery solved.




Next was a basic handling check. I wanted to make sure that the rake was about right before welding in the rear shock mounts. Once those are on solid it will be very hard to make big changes to the geometry. We set the sag front and rear. The springs are all a bit too soft now, so needed a lot of extra preload to get them right. The rear spring collars are at the end of their adjustment and we added 1.25" spacers in the forks to get them right. A little test ride was taken and the geometry is declared 'close enough'. It doesn't resist turning too much, and the front end doesn't flop over in tight turns.


Last up was the exhaust. You've seen the results, the process was just as bad. I picked up a bunch of parts for fabricating a muffler on the back of the stock headers and that's where we started. I welded a slip fitting on to each of the headers and just for fun we stuck tube into the fitting to make shotgun pipes. Those sounded really nice. Just as loud as headers, but a better tone.

As we were discussing exhaust options, someone - I think it was Allan - remembered that Rick had an old supertrapp muffler laying around. So we hunted it down and just for fun tried to install it. It was a perfect fit on the inside of the header, and just a half inch too long to clear the rear shock mounts. It even cleared the centerstand. Rick came home as we were trying it out, and dug out the other matching muffler and we stuffed that in the other header and you've seen the results.
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Old 03-03-2013, 01:29 AM   #395
Zombie_Stomp
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Joined: Jun 2007
Location: SE Portland/ Carrboroland NC
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Wicked

I have seen some of the results and I guess as far as exhaust goes, all you need to keep them from blowing off might just be some thick wire mounts and either springs or safety wire to hold them on, I love little trick accessory stuff like that in a build. Once again, this build rocks my ass of and I have complete confidence in your ability to make A very capable race bike. You're going to let me take a spin when it's all said and done, right?
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Old 03-03-2013, 07:06 AM   #396
sailah
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Location: Turning expensive metal into scrap
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Nice Bike sounds awesome. I'd love to line it up against my 600...
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Old 03-03-2013, 07:18 AM   #397
Ladybug0048
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Joined: Nov 2005
Location: Spokane Valley, WA (the dry side of the mountains)
Oddometer: 10,541
You, Allan and Ray loose in a fully stocked garage could be entertaining. I hope Danny is keeping an eye on you guys. I would think Rick would keep you out of trouble but I see he's just as crazy.

Keep up the good work guys.
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Old 03-03-2013, 07:27 PM   #398
Loud Al
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Location: Forest Grove, OR
Oddometer: 3,879
Some Pics from Friday

Adjusting the valves



That man and his machine



Mr. Fisherman stopped by



Lets see if it works any better





Still needs work



Don't drop it











Ray isn't just a pretty face



That seems to work better





Let's work on that suspension







Exhaust version 1




Exhaust version 2




We got a bunch done but there is a bunch more to do.
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Old 03-03-2013, 08:03 PM   #399
MortimerSickle
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Joined: Dec 2005
Location: Rainville, Orygun, where moss is a road hazard.
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Quote:
Originally Posted by Loud Al View Post
...

Exhaust version 1




...
OK, that's the one we need to hear.

Where is YouTube when we need it.
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Old 03-04-2013, 07:47 AM   #400
Scott_PDX
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That seat cracks me up - it looks hard as a board.
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Old 03-04-2013, 09:54 PM   #401
Luke OP
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Yeahyeahyeah, the seat.


The other weekend Cory made up a really nice seat on the plastic pan. Over the week he made up a cover and attached it. He brought it down on Saturday and I was able to mount it up this afternoon. It looks really nice. I didn't take any close up pictures of it but should have. It's pretty firm, by request.

No more fir seat.











I did a little messing around with the carbs. I capped off the choke inlets- the hose system was just too complicated, and I don't want any unfiltered openings on the carbs so the chokes have to go. It shouldn't be that big of a deal, the bike doesn't need the chokes to run, and they can still be open to flood the motor for startup. Capping off the inlets required separating the outer carbs from the rack, so I re-synced them as well.


Last up was a weigh-in.



The original goal was to keep the weight similar to the stock 550, which was 420 pounds dry. Right now I'm at 395 pounds with not too much to add, so that's been a real success.
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Old 03-04-2013, 11:31 PM   #402
Luke OP
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Location: Idiotville, OR
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Quote:
Originally Posted by sailah View Post
Nice Bike sounds awesome. I'd love to line it up against my 600...
That'd be fun.


Frankenrally anyone?
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Old 03-05-2013, 02:33 AM   #403
DRjoe
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Location: Sunshine coast qld
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Evil looking weapon.
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Old 03-05-2013, 02:46 AM   #404
Mr. Fisherman
Ray soon to be AWAY!
 
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Location: Packing the bus!
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Evil looking weapon.
It is... I was bleeding within the first 5 minutes of working on it. "Whose blood is this? oh, mine"
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Old 03-05-2013, 07:07 AM   #405
Loud Al
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Location: Forest Grove, OR
Oddometer: 3,879
Wow 395 full of oil and with a gallon of gas, I didn't think it would come in under 400. As long as you don't make the skid plate out of 1/4" plate steel you should be very close to 400lbs
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