I might not be able to repair this one.

[tony.mon]

I came over all enthusiastic this evening, and started to pull my engine apart.
I found these in the exhaust system:


The other bit of the valve head was sitting in the inlet tract under the carb.....

I may need a few parts.

[Miztaziggy]

Well, although I can tell that doesn't look good, I don't know what that actually is....

Is that a valve?

[VTRDark]

Mushrooms

That well and truly exploded. So how far down the exhaust did they end up.

(:-})

[tony.mon]

In the collector, under the engine.
They may have been travelling at a fair velocity......

[Hairy biker]

Maybe your bike has decided to make itself one of those Yamaha ex-up valves

[warby221]

Would have thought it was just a five min job for a man of your caliber tony
Hammer it flat weld it back together polish it up grind the seats back in and bobs your mothers brother
Lol
In the words of dirty harry “an mans got to know his limitations”
I’m assuming the head and pistons are a bit worse for were to

gotta say when you do a job u do it right m8

[darkember]

Jeepers Tony, what kind of abuse were you giving that poor engine

[Saintsman27]

You been doing them Mexican explosions then ..
har
Alb

[lloydie]

sh1t ... hows the hi comp pistons ?

[MacV2]

Yeah that'll be alright nothing a dab of superglue wont cure...

[ging500]

I won't tony to post pictures of the rest of the engine once taken to pieces. The head is not going to look pretty.

[Darknomad]

when ever has anyone says i want to see the head ended up pretty.

[Z28DUNC]

Looks like its been chewed up and spat out!

What where you running it on AVGAS?

[AMCQ46]

you will want to keep those bits, polished and mounted...........a memorial to your mechanical sympaty

[tony.mon]

Might take a bit of polishing:




Well, as I always say, if you're gonna do it at all, do it properly.
Mind you, the front one is still ok....