yamatech2003
Registered
I am new to the board and was actually just lurking. I couldn't help to notice the number of threads about strange knocking noises. I work as a tech in a multiline dealership and thought you guys should know that there are/were some problems with busas doing this. It seems to limited to 06 models from what I can tell, but no less than 6 times just this past summer customers came in complaining about a strange knock (especially when hot). We checked oil pressure (at 140F oil @4k RPM) and found that it was a little below the minimum in the spec.
After teardown we found that about half of them had improperly machine crankcases on the main journals (bored too big/beyond service limit) and the other few had the wrong sized main journal bearings in them (found by plasti-gauge).
Just though I would throw it out there, So far Suzuki has covered them all, but I'm not so sure you want to let your warranty run out before this rears its head. Most of the ones we have worked on were in the 4-8k mile range. If you hear a knock...check your oil pressure!
After teardown we found that about half of them had improperly machine crankcases on the main journals (bored too big/beyond service limit) and the other few had the wrong sized main journal bearings in them (found by plasti-gauge).
Just though I would throw it out there, So far Suzuki has covered them all, but I'm not so sure you want to let your warranty run out before this rears its head. Most of the ones we have worked on were in the 4-8k mile range. If you hear a knock...check your oil pressure!
