Thanks guys. As far as I know (which means I'm not 100% certain because the previous owner of this bike has emigrated), it hasn't had a rebore. I'm pretty sure that the header is a Fatty although I'll double-check tomorrow. Hmmmm, wonder if that accounts for the bucket-sized main jet? Although the b...

I've finally got around to starting work on my mk.3 project bike and obviously the first job is to find out exactly what needs sorting. Chassis-wise it's OK, all the bearings and seals are sound. The first thing I did was replace the air filter and plug and clean the carb out. However, it's still a ...

Thanks for all the advice guys. It was the float valve that was stuck. Bike now runs but erratically and won't idle (idle screw makes zero difference). Despite 3 thorough cleans there's obviously still crusty gunk in there somewhere. I'm starting to think that this carb is heading for the bin

I've just reassembled my mk.3 "project" bike following a comprehensive strip-down, clean and renewal and now when I turn the fuel tap on, fuel IMMEDIATELY p*sses all over the place from the vent tube connected to the carb bowl. Like an idiot I didn't note where all the various hoses were connected t...

> make sure both sides are imaculately clean before you start messing tho as > dirt and engine internals are not good bedfellows. Jon Funny you should say that. I've just been out to do some more work on the bike and the crusty green stuff that I mentioned previously (and assumed was simply surface ...

Just removed the carb on my mk.3 to find all of the internals are green and crusty (really). Pretty sure it's not supposed to be like that so there's a thorough rodding-out on the cards but thinking ahead slightly, is there a trick to reinstalling the carb without loosening/removing the airbox? Many...

Hello from deepest, darkest North Yorkshire (well, that's an accurate description of the moorland bogs round here anyway!) Used to ride enduros years ago, got into trials and that's where I've been for a while although I recently started thinking that it might be nice to do a bit of trailriding and ...