Comments for motorbike Norton Commando 850 MKII (2nd generation) http://norton.alterlinks.com Norton Commando 850 english vintage motorbike through generations Wed, 06 Oct 2010 18:31:35 +0000 hourly 1 http://wordpress.org/?v=3.3.1 Comment on Norton Commando anno 2010 by Rob http://norton.alterlinks.com/02-10-2010/norton-commando-anno-2010/comment-page-1#comment-370 Rob Wed, 06 Oct 2010 18:31:35 +0000 http://norton.alterlinks.com/?p=309#comment-370 Nice bike! (looks a bit like mine) I only noticed one difference; if I was to make a video of my Norton starting, it would last a couple of minutes rather than 28 seconds ... (mine rarely starts cold on the first kick, only when she's warm). Maybe a personal question and not of my business, but why would you want to sell it? She looks to be in very good shape? Nice bike! (looks a bit like mine)
I only noticed one difference; if I was to make a video of my Norton starting, it would last a couple of minutes rather than 28 seconds … (mine rarely starts cold on the first kick, only when she’s warm).
Maybe a personal question and not of my business, but why would you want to sell it? She looks to be in very good shape?

]]> Comment on Norton Commando anno 2010 by Norton Commando 850 MK2A Roadster 1974 – FOR SALE http://norton.alterlinks.com/02-10-2010/norton-commando-anno-2010/comment-page-1#comment-369 Norton Commando 850 MK2A Roadster 1974 – FOR SALE Wed, 06 Oct 2010 16:54:20 +0000 http://norton.alterlinks.com/?p=309#comment-369 [...] Norton Commando anno 2010 | Norton Commando 850 MKII (2nd generation) [...] [...] Norton Commando anno 2010 | Norton Commando 850 MKII (2nd generation) [...]

]]> Comment on Duh….. 4500 rpm limit solved by Rob http://norton.alterlinks.com/21-05-2009/duh-4500-rpm-limit-solved/comment-page-1#comment-362 Rob Sun, 08 Aug 2010 20:07:33 +0000 http://norton2.alterlinks.com/?p=82#comment-362 Thanks for the tip Karl! Soon I'll have to replace the valvecover's joints (again) anyway, so I'll have a look at them. Sometimes I have the feeling that all I do is replacing joints. Just to know, by any chance, you don't happen to have any problems with the exhaust locking nuts untighten all the time? Rob Thanks for the tip Karl! Soon I’ll have to replace the valvecover’s joints (again) anyway, so I’ll have a look at them. Sometimes I have the feeling that all I do is replacing joints. Just to know, by any chance, you don’t happen to have any problems with the exhaust locking nuts untighten all the time?

Rob

]]> Comment on Duh….. 4500 rpm limit solved by Karl Fabian http://norton.alterlinks.com/21-05-2009/duh-4500-rpm-limit-solved/comment-page-1#comment-170 Karl Fabian Wed, 30 Jun 2010 05:12:18 +0000 http://norton2.alterlinks.com/?p=82#comment-170 Had exactly the same problem with a 75 MKIII. Good torque and takeoff etc but just ran out of revs at 4500-5000 rpm. This happened about 12 years ago. Turned out to be caused by a completely worn out lobe on the camshaft. The intake valve on the right bank was only opening about 1/16 inch!! Bike only had 8000 original miles and performance degraded slowly over the years untill problem was finally discovered. It turned out to be poor quality control at the factory (mis-matched valve lifters on right cylinder acting as a cutter on the cam lobe) Put in another cam and new lifter, new piston rings seals etc. Bike now pulls easily to 7000 and runs like new with 16000 miles on it now. I would suggest that you check that all your rocker arms are moving up and down with full valve lift. The MK II was known for soft cams and quality issues due to labor problems at the factory. Karl Had exactly the same problem with a 75 MKIII. Good torque and takeoff etc but just ran out of revs at 4500-5000 rpm. This happened about 12 years ago. Turned out to be caused by a completely worn out lobe on the camshaft. The intake valve on the right bank was only opening about 1/16 inch!! Bike only had 8000 original miles and performance degraded slowly over the years untill problem was finally discovered. It turned out to be poor quality control at the factory (mis-matched valve lifters on right cylinder acting as a cutter on the cam lobe) Put in another cam and new lifter, new piston rings seals etc. Bike now pulls easily to 7000 and runs like new with 16000 miles on it now. I would suggest that you check that all your rocker arms are moving up and down with full valve lift. The MK II was known for soft cams and quality issues due to labor problems at the factory.

Karl

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