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?
How are you 100% sure there is fuel spark and air?
Fuel, oxygen, spark. Check all three and $50 says you'll be missing one.
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
hmm maybe a problem with the cylinder head covers breather?
Just googling white smoke from the air filter
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......).
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
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.
Grab an issue of Rider Mag and there is usually a 20% off Harbor Freight coupon in there :thumb:
-Jessie
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?
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
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
You can give a little squirt of carb cleaner if you don't have starting fluid.
-Jessie
Quote from: Tombstones81 on January 26, 2012, 04:10:07 PM
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.
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 :cookoo:
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
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
Just curious, could your idle be really low? If it's trying to idle at say.......200 rpm, it won't even start.
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.
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)?
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
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.
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.
didn't this thing run before?
I'm so confused.
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.
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
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 :D (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.
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
Quote from: Tombstones81 on January 27, 2012, 11:49:50 AM
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.
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.