[Stumpy]

You are kidding, right?

[Icepaws]

I'm pretty sure thats an exhaust valve lol

yes

You are kidding, right?

Haha der! Exhaust valves are usually larger heh heh!

nope.
intake valves are bigger to allow more air to be sucked in more freely
while exhaust valves are smaller because the piston can push the spent charge out.alonge with the spent charge pulling in a fresh charge for the brief moment both valves are not closed.

Oh no! How in the world did the intake valve give up?

it's an exhaust valve and in fact you can see that it is in the image.
although it kind of looks like an angle of perseption issue too.
the chipped valve is exhaust valve the one up and left is also exhaust
the dark bottom left one is intake and upper left one is intake.

Yup that'll do it!

I'd hesitate to just replace the valve and gasket though. Those fragments must have gone somewhere!!!

I don't have enough experience in engine guts that deep to say anything though - but I'd look very very carefully at the piston and rings before anything else at all.

Someone who knows more than I do can help better.

I didn't pull the cylinder off, and don't intend to.
also hooray for suzuki engineering i pulled the head off in the bike.
it didn't burn oil now and i don't think it will when i am done so not going to replace the seals. as i don't want to get an A.M. gasket i want the 3 piece metal head gasket not the rubber coated one.
also pulled all the valves and im going to lap them and make them seal all nice.

[moodylane]

I'm pretty sure thats an exhaust valve lol

I've been hoodwinked! In all seriousness it's a bummer either way. I ended up doing the same thing on my previous bike. It had 2 less cylinders though. I've yet to see a valve just chip.

[Stumpy]

Valves can chip from anything!

Do you have any idea how fast these little things are travelling, and the forces involved?

Even a grain of sand pulled inside can wreak serious damage. Valve fragments will wreak even more

[moodylane]

Thats true. I watched a valve and spring operate at 20,000 rpm in an f1 engine on youtube. That was impressive.

[Icepaws]

ordered a head gasket and valve seals, cleaned the head, and just letting the carbon deposits soak in P.B. blast.
Possibly going to soak the whole thing in #2 oil.

[Stumpy]

Good luck with it Paws!

I don't have any suggestions or advice to offer in this situation, but best wishes!

[shpielers]

I'd definitely soak it, or at the very least spray it down with wd-40 or something to coat it to prevent flash rusting. It'd be a real PITA if that happened.

[Icepaws]

I'd definitely soak it, or at the very least spray it down with wd-40 or something to coat it to prevent flash rusting. It'd be a real PITA if that happened.

the head is cast aluminum as far as i can remember. looks like im not riding this weekend, i got the head gasket but no valve seals yet.

[41 Redhawk]

Use this however you want. I have seen cases were the cylinder head was removed and the cylinder not disturbed but when bolted back together the base gasket leaked oil.

[Icepaws]

Use this however you want. I have seen cases were the cylinder head was removed and the cylinder not disturbed but when bolted back together the base gasket leaked oil.

i have seen that before when the base was rather narrow of a gasket but the kats have a good thickness so i doubt it.


also on another note
the head gasket and valve seals came in, already got them in and the valves reinstalled, tomorrow going to put the cams in and check clearance. then install

[Icepaws]

well it's all back together
but not running as great as ever
all the carbon i cleaned out
i need to richen the minutre for
the idle circuit air fuel
how is a hiku to go again?

[Icepaws]

also as it would turn out it you can be off a tooth with the timing chain and not bend the valves, however 21 pins i find out.

[shpielers]

I'm guessing that was the issue with it not running well after you put everything back together? Also not entirely clear from that last post - the valves didnt get bent when you were off on the timing? Hope not. That'd be a bummer after all the work already done.

[Icepaws]

I'm guessing that was the issue with it not running well after you put everything back together? Also not entirely clear from that last post - the valves didnt get bent when you were off on the timing? Hope not. That'd be a bummer after all the work already done.

no while i was putting it all back together i noticed i was off a tooth and when i turned it over by hand it was not hard at any spot but was just harder in 4 different spots and not how i remember my engine being, when i checked i loosened the cam bolts and pulled the cam out and turned the intake back one tooth and then it felt better.
still running lean because of all the removed carbon and properly seating valves. i have a lot of mods to my carbs for efficiency and smoother running, i need to turn the mixtures out. *grabs 90degree tool.*