DR650 Cracked Engine

[bmwroadrider]

I bought a 2000 DR650 in Santiago a couple of weeks ago (At least I think that is the year). In any event the boss that holds one of the starter gears cracked off both on the valve cover, and on the engine block. I am trying to source parts from the states off ebay as I write this.

Here is the current situation. For aproximatley $70 a motorcycle shop in Talca can disaasemble and reassemble the motor provided I supply a set of Gaskets. Once disaasembled I can then take the left side engine case to a welding shop where they can repair the broekn boss.

I know this solution would not be as good as getting brand new cases but it is far chepaer, and less time consuming. If I did this, I would also plan on doing the torque limiting Starter clutch mod. Can anyone explain to me exactly what this is and how it is done. From what I could gleam on the internet an extra, back torque limiting gear, is added to the two gears of the starter clutch mechanism on a 1998-1999 and some 2000 models. Is this simply a drop in item or do other components need to be modified?

Any advice would be appreciated