Troubleshooting engine that wont start

[Tombstones81]

didnt check if the plugs were wet.
spark was looking fine.

Coils coulda been mixed up if that even matters.

and actually that reminds me to post something that happened during disassembly.
the plug wire at the coil of one came out.
I put it back in and forgot about it til a min ago and I've been googling if that could be a problem.
doesnt seem to be causing one tho as its getting spark.

im about to go down and go at it quite a bit tho.

(edit)
and my roommate got home a lil bit ago.
so I got my carb cleaner now to check that too

and back at it I go.
will post back with results.

[Tombstones81]

pretty sure I found the problem.

Looking down the intake tubes to the intake valves....
your Not supposed to see the end of the spark plug are ya?

it appears as tho the intake valves are not closing all the way when I crank the motor.

uncharted territory for me.
time to google! haha

(edit)
btw, when sprayed with carb cleaner, BIG flaming bang out of the exhaust!
and yes the carbs suck my hand in when I put it over it.

and checked the timing chain again, it is proper.

[Funderb]

didn't this thing run before?
I'm so confused.

[Tombstones81]

I replaced the upper part of the motor.
Cylinder, piston, and head.

just going to pull the head again tomorrow and see whats up.

if its funked, might just lap my valves to my old head and see how that works out ><

(edit)
I funked my top end trying to start it for the first time after all my hard work lol
bucket was stuck and broke an exhaust valve, which ended up dinging the crap out of the one piston.
got replacement parts from cbr, which is what i have on there now.

[BaltimoreGS]

Your hand being sucked in is a good sign.  The tip of the spark plug is in the combustion chamber so it can fire off the mixture when both valves are closed.  Depending on what part of the cycle the cam is on the valve may be open so you can see it.  Set the timing to the R/T mark with the cam notches facing together and both intake valves should be closed.  At that point you shouldn't be able to see into the combustion chamber.  Shine a flashlight in the spark plug hole and you shouldn't see light.  If that checks out, do a compression test.  If your compression readings are normal then your valves are doing what they should be.  Remember that each time you pull the head you should replace the cylinder head gasket and the head gasket, don't take it off again unless you're sure you have to.

-Jessie

[Tombstones81]

Yeah thats another thing I need now.
Gaskets...
Its leaking oil at the bottom of the cylinders.
its all good tho, i'll replace them once I get this thing figured out.

everything is lined up correctly, not sure on the cam notches tho.
#1 is at 3 o'clock
#2 is at 12 o'clock.
#3 is 18 notches from #2.

marks set correctly too.

bought a whole TON of stuff this morning to fix this problem. (luckily they were all cheap)

so im pretty confident I will have this fixed as soon as I take the time to go at it.
which will be late in the afternoon.
going to see Underworld in an hr.
then coming home to make PIGGIES  (stuffed cabbage)
while that slowly cooks I will check yet again in the manual.
if its all correct as im sure it is, i'll just pull the head again.

if they are funked (valves)
I will either put the ones from my old head in there
or just file down the bad spot on my  old head that really isnt too bad and just put the new valve i bought in there and toss that on.

also got some gauges to check the valves.

[Tombstones81]

umm Okay!
bit odd, i think lol

since the head cover was off, took 5 mins and checked the valve clearance. (the new head)
Exhaust valves are tight. (normal)

but then the intake valves are Loose as a goose!
and i mean LOOSE!
.88 feeler gauge went in that sucker!
yes .88, NOT .08!

checked them with the longer part pointing up.
then checked them in all different directions just to be certain.

of course, the bottom of the intake valves are not fully closed, which is probably why there is so much clearance. (and wont close as they sit right now)

kk off to the movies.
i'll take the head off when I get back and have Piggies cookin

[ohgood]

umm Okay!
bit odd, i think lol

since the head cover was off, took 5 mins and checked the valve clearance. (the new head)
Exhaust valves are tight. (normal)

but then the intake valves are Loose as a goose!
and i mean LOOSE!
.88 feeler gauge went in that sucker!
yes .88, NOT .08!

checked them with the longer part pointing up.
then checked them in all different directions just to be certain.

of course, the bottom of the intake valves are not fully closed, which is probably why there is so much clearance. (and wont close as they sit right now)

kk off to the movies.
i'll take the head off when I get back and have Piggies cookin

i wouldn't try cranking it anymore then... something is a tad off if you mean .880", or well, .88 mm, either one is bad.

[Tombstones81]

dont plan to.
as obviously its utterly pointless if the intake valves are not closing to allow combustion.

it will be running as soon as I feel like going down to work on it.
I want to.....
Its just that the past 2 days have been run run run, finally sittin down for a bit.
still didnt even start my piggies.

I got all night tho

(edit)
I just hope they didnt touch the pistons.
was Zero indication of it tho.