Not sure I can be a lot of help to someone in Norway.  I replaced my crank bearings about two years ago.  It requires a lot of work, a couple of hundred dollars worth of parts and gaskets.

What are the symptoms you had, how many miles on the bike, etc.  If you can't do the work yourself it could get expensive.  Around here there are enough crashed bikes that buying an engine is not difficult - but I don't imagine that is easy in Norway.

Dave

I'd get a used engine,if possible. Then,I'd tear into the old one. That way you are not parked and you can rebuild the engine Hotter than stock,put it back in,sell the Used engine that has been dragging you around.

verslagen1 wrote on 08/18/14 at 10:23:32:


And I may not have actually lost the crank bearing.....the loose flywheel nut was mostly likely making all the noise - but the bearing did have a tiny amount of play in it.  Not sure if the loose flywheel made the bearing loose...or the loose bearing made the flywheel nut come loose.

When oil problems arise the cam and piston are usually the first things to fail, as bearings can survive with very little oil.

Yep....it would be nice to know what the symptoms are.

Dave

My engine had a horrible knock.  It started out sounding like a tick when the bike had 400 miles on it, and I was new to this bike and was not sure that they didn't all sound this way.  Forum member Skasjow met me one night so I could compare the sound of my bike with his....and his did not make as much noise for some reason.  The tick progressed into a loud knock - it was so loud that you would hear me coming from the knock....not the muffler.

For some reason the fllywheel nut on the left side of the crankshaft that is supposed to be torqued to 100 foot/lbs. - was finger tight.  The flywheel is splined to the crank, and the knocking was the crankshaft and flywheel banging back and forth.  The noise was loudest at idle and at cruising speeds it was hardly noticeable.

The only problem in trying to see if this is a problem wit your bike is the left side cover has to come off, and the magneto rotor has to be pulled off - which requires a special puller.  Once the rotor is off you then need a large deep socket to access and tighten the flywheel nut.  You can also pull up and down on the end of the crankshaft and see if there is any play....that might indicate a crank bearing issue.

Dave

If you can get to the flywheel nut and prove it was not torqued and put it back together and test it and Not cry if you have to go back in,,well,you do the math,and,of course Dave's experience will help.

So I've orderd the puller. But just so I got this right, the puller is for the magneto rotor. But is the large deep socket also a special suzuki tool that needs to be ordered or is that something I can get at a hardware store?

I should probably be able to borrow one from work.
Really apreciate the help, thanks!