I just recently had my 1.9 Wasserbox rebuilt after low oil pressure caused lifter and cam damage. The engine now has new: bearings camshaft lifters oil pump rings waterpump plugs, leads, distributer cap and rotor among other things(like gaskets, pushrod tubes, clamps...nothing else major). Well, this engine which I thought and was told would run like new just barely runs. It is lower on power than it has ever been(except when the lifters went) and refuses to accelerate smoothly. It stumbles and hesitates, most extremely from idle to 2000 rpm, never pulling cleanly. The one thing that does work well is idle. The idle is now very stable at about 800 or lower rpm where it used to always drift upwards and hover around 1200 rpm. I took it back to the shop the next day and they rechecked the timing, but found it to be correct(though they seemed to only check it at high rpm using a timing light). Has anyone else had an experience like this after a rebuild? Does performance improve with break-in? I was told to just put some more miles on it, but in my experience with motorcycles break-in has been more for longevity than imediated performance improvements. Any ideas? Would a camshaft not properly timed to the crankshaft exhibit these symptoms? Thanks, James Wagner
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