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Ah yeah that looks alright, just realised its $10 for 12 different ones, damned bargain! I got mine from...
Ah yeah ok, the exhausts looked good to my untrained eye, definitely no pitting or concavity(?) of the valves, but I'll factor in pricing for new...
Yeah it's not too bad, Motorcycle spares warehouse for the valves and Impex for the springs :thumb_ups:
Well, the frugal in me is considering if I reuse the exhaust valves as they don't seem bad at all, but haven't decided yet. The shop said that...
Well the engine shop, Nippon Performance in Brisbane, has the seat cutters and has done CBR250R seats before, even had the cylinder head for the...
Sorry @gyro gearloose it is a ZXR250, I'll update the title They have had the cylinder head already and pistons to do some cylinder measurements...
This may take me some time to process! My housemate does have a lathe at the house and a mill drill, he's a mechanical engineer so maybe I could...
Ahh yep ok, so by having the intakes closed you are sort of reducing the power available to compress as the engine (starter motor essentially) is...
Just out of interest, why does the throttle need to be wide open, or the carbs removed? To do with back pressure against the carb plates?
Yeah I don't know if I would have lined them up proper but I know i certainly didn't offset them as per the manual, I'd say more likely lined up...
I did do the valve clearances, cam chain, carb refurb and sync probably 3500km ago and she burns a bit of oil so i figured piston rings or...
I'll have a chat with the engine shop about cutting the seats in and whether they can do anything with them I can put it all back together and...
I would say that the "margin" is not existent on this inlet valve, I've got 3 inlet valves like that where the edge is almost sharp because of how...
Here's that same valve after better cleanup: Brass wire brush on a hand drill [ATTACH]
Also thanks for the pictures for reference!
Ah yeah ok so I was trying my damnedest to clean them with the ultrasonic cleaner which resulted in ruining the nitride on two valves, pretty sure...
@Linkin , so that margin width should easily be measureable as when lapping the valve I'll see the sealing face (shiny) and then the margin above...
@Linkin thanks for that, make sense to me! Luckily, the only two valves that I could aew any visible pitting on are the two that I've ruined, the...
Poor Vince... [MEDIA]
Cheers guys! In my infinite wisdom, I put a couple valves in the ultrasonic cleaner with washing powder for a couple hours and it's stripped off...