Recent content by hastiekid

The engine was in a competition bike. A combination of over revving and a heavy flywheel on a two bearing crank resulted in the crank snapping at the timing chain sprocket. Amazingly enough the only damage was to valves and two cracked valve guides no piston or chamber damage at all.

That’s what I was hoping but I am yet to find any its turning into a nightmare.!!!!

They are no longer available from Taki.

Two of them are S shaped so i could never get a true length.

I’m having an absolute nightmare finding replacement valves for my Takegawa DOHC head after bending them badly. It looks like my only option now is to get a set custom manufactured but I need to supply drawings to get them done. I have no problem with 90% of the dimensions but due to the valves...

AHHHH…..but there lies one of my problems……..I have the unenviable task of rebuilding the engine after being stripped by another person and handed to me in a box.:bigcry:

Hi All, after a catastrophic engine failure I’m currently rebuilding a Takegawa DOHC head but I live in the UK where these are rare so information is very scarce. The only damage is to all four valves but I’m having trouble getting a replacement set. Does anybody know of an alternative to...