Pinning down the cause of the recurrent engine trouble that affected multiple cruises took patience and perseverance for Justin Morton

Last month, we looked at keeping the cylinder head sealed. Now Rick looks at what else is required to keep engine oil where it should be, and not making a puddle on the floor

…from a world champion mechanic. Yamaha spanner ace Liam Coffey reveals all

With the new bearings, piston rings and seals fitted into the 850 block (at last), it was time to pull the old 700cc engine from the Vegemite Special so certain other parts could be swapped over. Firs

Despite 140 years of development, some bike engines still consume the very stuff that’s there to protect them. Professor Jamie Turner explains why

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