No8 Wire Extraordinaire
Well I have the engine mount sorted & now a longer bolt. Tomorrow I have the day off to fit it & pack. Just fitted a longer shift arm lever as shifting was a little high pressure, but I'll take the old arm in case the lever action becomes too long. Seems good though.
Don't you look at my accountant.
He's the only one I've got.
Anorak
Was Taupo ready in time for the 100?
Kinky is using a feather. Perverted is using the whole chicken
In the riders seat
So what happened?
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
Originally Posted by scracha
Anorak
No idea i thought they were racing or something.
Kinky is using a feather. Perverted is using the whole chicken
In the riders seat
Dominated by four strokes as it should be
I was wondering what happed to Daves bike, is he just to hard on gear?
"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough power."
Anorak
I doubt it broke down, it will just be less er....completely running than it was previously.
Kinky is using a feather. Perverted is using the whole chicken
MotoFXR's will rule the world!
Devicon engine case failure?
Its harder to lose weight than gain horsepower.
No8 Wire Extraordinaire
Hey it was ready & can't deny it was competitive, in fact more so than anyone on this thread for sure. But sadly, no I made some mistakes & shortcuts. Quite happy that the basis is sound, & very happy that I can still ride when I want to. Nice to have some power advantage on some people than the other way around doing the David & Goliath thing on the 50 too often.
Some new bits & we'll be away. Must finish these cases. Non leaking cases will help for sure.
Don't you look at my accountant.
He's the only one I've got.
Anorak
Be interesting if it was. For it would not generally be considered a std Honda part. In Dave's Honda engined and Honda framed Non Honda.
So in all seriousness, what did actually happen Dave? My moneys on another Yamaha part failure.
Kinky is using a feather. Perverted is using the whole chicken
Low personal B.M.E.P.
Hmmm - my money's on a meltdown.....Kev supplied those bits to avoid just this scenario, Dave. I was keen to keep them here and continue development of his bike. Don't bloody well waste them !!
No8 Wire Extraordinaire
As I said in the F4 picks thread, the ring smeared in the groove. Why? Well the inlet port was blocked with some ally that was just clear of the bore. But the next rebore (week before last) got into it. Infact he smeared a little honing it, but it cleaned out fine. But the ring was mainly locked at the back, but worked around locked at the front probably as a consequence.
Could also be the inconsistent fuelling from the leaking cases, but the top of the piston didn't look bad at all.
The piston also developed a crack from the gungeon hole to the bottom. I suspect as a result of the stress of hitting the head. When I took the barrel off the gasket at the rear had disintegrated a bit. Was this cocking the barrel a bit? unlikely, but I didn't find why the head clearance had closed up to the back. Maybe the piston wasn't symmetrical front to back. I'd reskimed the head so it had 0.8 at the rear but this left a bit more than a mm at the front. Need to recheck all this again. Also the adaptors were a lot tighter than first time & had to push them in with a sash clamp, but there was no time to ease them & this was a one way journey, new motor soon (having said that I thought would be finished before Christmas).
I might try a wiseco piston which are forged. Could be these old YZs didn't do 12000rpm & std cast piston just can't cope. Sadly Wiseco are twin ring & thicker ring.
Don't you look at my accountant.
He's the only one I've got.
Race it don't store it !
Hard luck Dave you were flying ,it certainly shown lots of potential this weekend ..
No8 Wire Extraordinaire
yes, on the long drive back I was formulating what I could sell to generate the modest money required to get a few issues sorted. The Trials bike might have to take one for the team. -Which is a pity as I love riding it.
Don't you look at my accountant.
He's the only one I've got.
Anorak
What is the bore now Dave .25 or .5mm?
Vanessa will have a prolite Not cause i think they are cool. Just not a lot of choice around, Shame we can't go to 52mm strikes aye.
Kinky is using a feather. Perverted is using the whole chicken
No8 Wire Extraordinaire
.5 so 51mm. or 4th over YZ.
Don't you look at my accountant.
He's the only one I've got.
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