Troubleshooting engine that wont start

[Tombstones81]

Finally got my oil pan gasket today, filled her back up and put everything on.

Yet all she wants to do is crank crank crank and not start.
There is fuel, spark, and air.
Battery is also not an issue.

There is some compression.
Not sure how much until Friday when I buy a tester.

Not sure what else it could be, brains on Overload from a BAD week!

anyone got any advice?

[rayshon]

How are you 100% sure there is fuel spark and air?

[jacob_ns]

Fuel, oxygen, spark. Check all three and $50 says you'll be missing one.

[Tombstones81]

kk just went out and started checking over the obvious.
didnt notice anything out of place so I cranked it a few times more.

few pops and oddly, a white cloud of smoke came out of the air box.
and it seems to be pushing air out instead of sucking it in from the air box.....

hmmm

[Tombstones81]

hmm maybe a problem with the cylinder head covers breather?

Just googling white smoke from the air filter

[Big Rich]

I wouldn't worry about that white smoke at all yet.

I would however check that the plugs are wet with gas, and with DIFFERENT plugs make sure you are getting spark (no gas to start a fire ball......).

[BaltimoreGS]

Stick with the basics first.  Open the float bowl drain and make sure you are getting fuel (possible pinched fuel line).  Take a good spare spark plug and check for spark.  If you have a compression gauge it wouldn't hurt to check compression.  And you can always give it a squirt of starting fluid and see what it does.

-Jessie

[Tombstones81]

Well, I went at it again.
Air coming out of the air box.

took the air box off and fuel was squirting out of the carbs on the air box side.

took the cylinder head cover off again and cranked it.
everything in there seems to be going smoothly.

I'll monkey with the carbs and triple check all the hoses tomorrow as im off.

30 mins til work so im done with the bike for the night.

(edit)
and no compression check until Friday, if the harbor freight stores nearby (2 of them) has the $20 to $30 one I seen on their web site.

[BaltimoreGS]

Grab an issue of Rider Mag and there is usually a 20% off Harbor Freight coupon in there   

-Jessie

[Tombstones81]

is air and fuel supposed to blow out of the Airbox side of the carbs?

it appears the dang engine is working backwards..... and Really starting to PI$$ me off!

I dont ever recall seeing this before.
Air and fuel is supposed to go from back to front.
this sumb!tch is shootin air and fuel from front to back (of the bike)

my patience is down to almost Zero with this POS PITA!

It cranks and cranks and cranks and nadda.
all that happens is air and fuel are spraying towards the airbox instead of towards the dang engine.

(edit)
just read a few things on some google searches.

maybe the valve timing is off?

[BaltimoreGS]

If you hold your palm over the mouth of the carb does it suck your hand in?  If yes, what does it do with a squirt of starting fluid?

-Jessie

[Tombstones81]

dont have starting fluid and I gotta check again what it does with my hand over it.

i was paying more attention as to why air and fuel was squirting towards the airbox side.

i'll go back out when i calm down

[BaltimoreGS]

You can give a little squirt of carb cleaner if you don't have starting fluid.

-Jessie

[Kijona]

dont have starting fluid and I gotta check again what it does with my hand over it.

i was paying more attention as to why air and fuel was squirting towards the airbox side.

i'll go back out when i calm down

Kroger sells Starting Fluid for 2 bucks if you live near one.

[Tombstones81]

hahaha I honestly think that is in my roommates car, which isnt here right now.
UGH I was sitting on the can this morning thinking that same thing, that I should get it from him before he leaves.

(edit)
and bare in mind
all of this is after replacing the entire top end of my engine.
pistons, cylinders, and head.
tho everything appears to be working normal.
timing chain was set correctly too.

but as I asked before, could the valve timing be off?
or is that just the chain?

and forgive me beforehand.
its been a VERY bad week and stress is pretty high.
so im honestly not thinking as calmly or clearly as I should be.

hmm maybe I should go buy a 6 pack! haha
think I seriously will as soon as I put pants on 
haha i wear old junky pants for bike work and take em off when i come inside.

(edit)
then yes the timing is correct (answer for below)

but I will double check to make sure it stayed that way when I drink some beer (when i go get it) and go back downstairs

[BaltimoreGS]

The timing of the valves is determined by how the camshafts are oriented to the crankshaft.  If you set the crank at the RT marks and then set the cam 1, 2 & 3 timing marks up according to the manual the valves will be in time.

-Jessie

[Big Rich]

Just curious, could your idle be really low? If it's trying to idle at say.......200 rpm, it won't even start.

[Tombstones81]

nope, I've gone over that possibility.

im just going to clean the carbs when I feel like going down and messin with it.
check everything again and give it another shot.

[Big Rich]

You never answered were the plugs wet with gas?  And how was the spark looking? Could You have the coils swapped (not sure if that makes a difference on the GS)?

[BaltimoreGS]

A shot of starting fluid takes the carbs out of the equation.  If it runs on starting fluid, then start tearing into the carbs.

-Jessie