OK this may be harking back to page one or even the OP's ride reports but I am just back from working a couple of weeks near Surabaya which is the other end of the island from Jakarta. From what I saw the traffic in Indonesia is frightful but the roads are not that bad, the biggest bike I saw was a 250 ninja most are 125's or 110's, they have premix for 2 strokes straight out of special petrol pumps, various local made Hondas and the like can cope with no problems, Not being able to go on the toll roads would have cost a lot of time when trying to get anywhere. We went from one end of the island to the other from central Jakarta to the wild woods outside Surabaya in a daihatsu luxio with no problems that's a small wheeled 1500cc people carrier. I would think that the marketing of the Ural as a roughty toughty vehicle would have seen the OP in better stead than us. From most of this post it may be possible to infer that time spent updating the engine was well spent, then maybe time would have been better spent finishing this and then addressing quality and staff training before instead bringing out special additions. I would add that Indonesians drive on the correct side of the road so the nerve of the OP for driving a wrong way round rig in that traffic at least deserves some respect.