Rapido76

I have just purchased my first bike a 2006 CBR 600RR. I bought it rather inexpensive due to the block having a hole in between the stator housing and the block. The bike turns on and runs fine, but leaks oil quickly. It only has 5k on the engine. I just purchased a bare 2006 CBR 600rr block and new stator housing. I am considering swapping over the internals myself. Not quite sure if its a good idea to swap the internals and use the same bearings since they are worn together or if I should just take the blocks to a reputable shop and have them put the block together with new bearings. Any intelligent feedback would be greatly appreciated. Thanks ahead of time.

senor honda

If the bearings are not hard to remove, Putting in new bearings might be a good idea anyway.
With only 5K on the engine, unless the bearings have scratches as a result of debris
when the casing broke, they might not need replacing.

You did not say how the casing got holed, but if metal pieces got on the old bearings,
while oil was flowing, definitely replace them and clean out any passageways where oil may have carried
any metal pieces. Have you found any metal dust in the bottom of the engine....or.... did any metal dust drain
out with the old oil?

Rapido76

Thanks for the response. The bike was dropped at 15 mph while going over a speed bump and the stator housing made impact on a cement curb which chipped the housing and the edge of the aluminum block. This is helpful, I have not inspected the entire block yet. The bike turned off upon impact and has not been turned on since so there may not be any shavings in the bearings. I will start removing the old engine tomorrow and inspect the bearings. Ill post an update and some pictures. I will contact the previous owner today and ask him these questions about whether there were any shavings or not. Thanks again for the feedback sir!

senor honda

Looking forward to the pics. Maybe if the bike was not run then maybe nothing got
in the oil passages. Keeping fingers crossed for luck.