Broken in hard. The whole point of plain bearing cranks is that there is no metal to metal contact. so there are no break in issues there. Transmissions sort themselves out fairly quickly and the cam to head journal clearances are big enough to really not worry about. So no real problems with running this motor hard out of the crate as long as it's properly warmed first. Oil change at 30 miles and run on the dyno at 250 miles. Since then I have added a Factory Pro St3 kit, K&N pod filters and an Akropovic system. It now makes 126.6 bhp on the same dyno! Now the actual bhp figures may be accurate, they may be not. No 2 dynos read the same, but what is for sure is that I have gained 21bhp and the torque curve is awesome. Those that have seen my other post will know that by next Easter this bike will be a street legal dragbike running in the 9.5s Bracket class we have in the UK. The next stage is some headwork and a 1216 kit. I already have cams waiting to go in too and I'm looking for 160bhp before I stick the laughing gas into it. Watch this space...
Yogi
Good luck on your project. I have been running the Suzuki oil cooled, GSXR and Bandit , since the early 1990s, and I have run every size, 1186, 1201, 1216, and now have a 1246 Bandit. The 1216 is probably
the best combo for this engine. I use the JE piston kits excelp for the 1201, which was Wiseco. I havn't dynoed my bike since I put the Cammotion G21 cams in, it dynoed 155 with stock GSXR cams.