De-engineering the RC Engineering Honda CB750… - Examiner.com

After installing the stock electric starter system back into the “kick start only” engine cases, it became apparent that the stock starting system was overwhelmed by the demands of the 1160cc, bored and stroked SOHC motor. As the engine internals were really never verified by the chain of owners since the bike was built in the 1980s, it seemed the best course of action was to dismantle the engine for inspection and verification of what work was performed on this... The original stock “emission control” carburetors had been replaced by a set of the earlier K1-K6 28mm carb set. The information that came with the bike stated that the carburetors were “bored” to some oversize figure, but inspection of the carb bodies revealed the normal double-oval throat bores. New manifolds were purchased and installed during the early revival attempts and eventually the engine fueling tasks seemed to be under control. With carbs and the original RC Engineering 4:1 exhaust system removed, work began to remove the cylinder head from the engine, while it was still installed on the chassis. Normally, the engine must be removed from the frame to service the top end, but the previous owner had cut away the two side brace tubes to allow engine work to be performed in the chassis. Source: www.examiner.com