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December 4th, 2014, 07:29 PM   #111
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Crankshaft is back from the welders

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December 5th, 2014, 02:41 AM   #112
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I don't know much about welding but that looks quite well done!
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December 5th, 2014, 12:49 PM   #113
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done with a laser, Tourist
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December 5th, 2014, 01:29 PM   #114
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Wow thats purdy, and thats an incredibly neat narrow weld.

Did some reading on LATIG, 4 times the penetration, all the heat goes into the weld. Staunch.
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February 13th, 2015, 07:16 PM   #115
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I see Ducati make an aluminium flywheel.
Might be some weight saving there.
Now how do you get those magnets out?
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February 13th, 2015, 07:39 PM   #116
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soak in Gunwash (MEK) for a week should kill the glue

crank balancing ... the worlds first v twin triumph was homemade




http://www.xs650.org.au/Technical%20Info/vtwin.html

http://www.xs650.org.au/Technical%20Info/smoothness.htm
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Last edited by bushmechanic; February 13th, 2015 at 07:42 PM.
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November 14th, 2016, 03:40 AM   #117
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FWIW someone measured the DRZ balance factor - perhaps inspired by this thread - and found it to be 0.38 stock (and the DRZ has a counterbalancer as stock): DRZ engine balance factor. - DR-Z 400 - ThumperTalk
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July 28th, 2017, 05:49 AM   #118
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How does your balanced crank vibrate with different RPMs? I have a CB removed 2005 628 with stock piston, rod and crank. It shakes to the handlebar worst, but I'm going to buy rubber handlebar mounts to help with it. My bike has pretty much mild-medium vibrations under 4000rpm, 5500rpm absolutely smooth, 6500-7500rpm bad vibration (peak power range...) and 7500+ rpm medium vibration. Stock aluminum engine mounts were cracked so I replaced them with steel mounts.

It's a street bike so it doesn't see over 6000rpm that often, but it would be nice to try to get rid of some of the worst shakes with the next engine overhaul.
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July 28th, 2017, 05:28 PM   #119
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Smoother than the stock engine with counterbalancer at high rpm

Vibration is worst at idle decreases up to about 3000rpm and is mostly felt through foot pegs
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