My f*cking exup on my YZF thou is seized at the 5k mark - I get the rev counter fault code at anything over 5k - the whole thing is rusted to sh1t and I’m gonna have to drill the screws out to get it out and grease it up which I’m not looking forward to as I’'ve only got an inherited one speed black and decker from the 70’s which goes really fast and skitters all over the place when I’m trying to drill the initial small pilot hole to get the larger drill bit into.
My question is - Is it easier to drill out screws with a drill equipped with a low speed setting? If so then i’ll go out and buy a power drill with multi-speed settings.
The exup valve is stuck half open - when I hit anything over 5k revs the motor controlling the exup valve can’t open the valve fully and this registers as a fault code on the rev counter - it’s also going to burn out the valve motor eventually - anything under or at 5k is ok.
The bike will still rev up to the limiter but will be slightly constricted by the half closed valve - also when I go over 5k I find it annoying riding around with the rev counter bouncing from 0 to 7 thousand revs which is how the bike indicates there is a problem with the exup.
Funnily enough living around the 5k mark is actually fine on bike with a 1000 cc torquey motor which is just used for commuting in heavy traffic - I’m either crawling around in congestion or on the motorway where 5k revs equals 80 mph in 5th gear - but obviously I want to sort it out.
Not really - the temperatures in exhaust are so high that most things burn away - but it’s good to disassemble and grease it regularly to keep it moving - however I have heard that there are some high temperature greases that can live at these kind of temperatures (for a while) - and I’m looking into getting hold of some.
Ahhh , it’s solid lubrication particles held in a suspension then , not a greases as such, more like a powder but held in a greasy liquid for application .