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Old 06-23-2008, 12:10 PM   #106
Lornce OP
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You make a lot of demands for a guy who isn't sure what's in his own motor.



Tell you what, send your heads to:

Don Morris
"Stay Tuned" Systems Inc.
R.R. #2
Mount Hope, ON
L0R 1W0
phone:(905)679-2237
fax:(905)679-8136

And tell him you want the full enchilada and that you're using Venolia 1050cc pistons. But make sure you are, first.

It wouldn't be cool to go broadcasting someone else hard won tuning secrets all over the internet, but if you know anything about the shape of '77 heads and Venolia pistons, and you can do rudimentary math, it won't take long to figure out how the 12:1cr is derived.

Don's port work is part of the equation, too.

Hint: stock heads with 1050cc Venolia's generate about 9:1cr and have almost no useful squish effect.

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Old 07-03-2008, 09:27 PM   #107
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Changed the output flange seal in the final drive this evening and when I tried refitting the final drive to the swingarm/shaft combo in the frame I nearly went mad.

In the end I removed the swingarm/shaft combo from the frame and held the final drive in a vice with the pinion gear spline facing upwards. In this position it was easier to keep the u-joint straight enough to get the splines mated.

With the para-lever pivots refitted into new bearings the whole shmere was put back into the frame and the swingarm adjusted for centre and the pivot bearings for preload.

With the rear wheel attached and the driveshaft held in place by the rear brake I torqued up the trans output flange bolts on the driveshaft with lock-tite and without lock washers.

As soon as the new exhaust gaskets arrive (hopefully Saturday) it'll finally be ready to roll out for a break-in run. Aiming for Sunday afternoon.

Here's hoping. Looking forward to riding that bike again.



This pic has nothing to do with this stage but I like the perspective.



Lornce screwed with this post 08-26-2010 at 01:19 AM
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Old 07-05-2008, 04:35 PM   #108
kahoon
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Quote:
Originally Posted by Lornce
...Aiming for Sunday afternoon.
maybe i'll see you in belfountain tomorrow afternoon
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Old 07-06-2008, 03:53 PM   #109
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The Monster liiiivves.





The motor's strong and smooth... but now the clutch is a weak link.

Round 12.

Ding ding ding!
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Old 07-06-2008, 05:06 PM   #110
datchew
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Wheelie pics are needed.

(it'll help you kill off that clutch!)
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Old 08-27-2008, 08:54 PM   #111
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Quote:
Originally Posted by datchew
Wheelie pics are needed.

(it'll help you kill off that clutch!)

When I can find someone to take them I'll post them toot sweet.

There's lots to photograph. :wink



p.s. the clutch "self healed" once it got hot and bothered enough to burn off the solvent used to clean the mud off the pressure plates...
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Old 01-07-2009, 08:08 PM   #112
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Lornce:

What happened to the rest of this? I'm so jealous of the bike.

So, I guess I'm trying to cure that by getting some pictures to drool on.
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Old 01-07-2009, 08:39 PM   #113
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Ya Lornce.. can you please keep posting pic's of this rebuild so I can live vicariously through you .... that way my hands keep clean and my wallet fatter. Looks good so far.
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Old 01-08-2009, 07:23 AM   #114
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Never occured to me to photograph the bike once it was together. Looked pretty much the same on the outside as it did before I fixed the inside.

Here's a link to a thread about the Ontario Adventure Riders recent involvement at the Toronto bike show that features a pic of the bike.

http://www.advrider.com/forums/showt...399336&page=58

It's running great, too, btw.

fwiw,

Lornce
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Old 01-08-2009, 08:42 AM   #115
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Quote:
Originally Posted by Lornce
Changed the output flange seal in the final drive this evening and when I tried refitting the final drive to the swingarm/shaft combo in the frame I nearly went mad. .
Heh. This brings back memories.

You've a beautiful bike. Huge, loud, and terrifying, I bet.
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Old 01-13-2009, 11:02 AM   #116
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Originally Posted by NameHere
Heh. This brings back memories.

You've a beautiful bike. Huge, loud, and terrifying, I bet.
Thanks, it's beautiful to me. Never more so than when it's covered in dirt and grime.

It's actually nice and quiet with the stock exhaust still fitted. Partly I like the quiet and partly I've never quite been able to stumble upon a nice cheap used Supertrapp.

Not at all terrifying. Just a comfy all-rounder with a bit of healthy throttle response.

Airheads ruin you for lesser bikes.
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Old 01-13-2009, 02:53 PM   #117
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Quote:
Originally Posted by Lornce
TAirheads ruin you for lesser bikes.

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Old 04-14-2009, 10:30 AM   #118
Lornce OP
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Here it is at the carwash after a recent ride:




Some of the riding company it keeps:










Buddy with KTM 950SE: "When are you gonna get a new bike?"

Me: "When KTM's start passing me."




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Old 04-15-2009, 08:38 AM   #119
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Quote:
Originally Posted by Lornce

Buddy with KTM 950SE: "When are you gonna get a new bike?"

Me: "When KTM's start passing me."




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Old 04-22-2010, 07:54 PM   #120
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'74 R90/6: What Would YOU Do?

http://toronto.craigslist.ca/tor/mcy/1703827368.html

'74 R90/6 For Sale























Lornce screwed with this post 06-27-2010 at 07:17 AM
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