Precisely the point I am trying to make. The valve clearance is easily swamped by ordinary levels of journal clearance. I'll bet that service limit is conservative and there are hundreds of machines whizzing around with no problems above it.
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Precisely the point I am trying to make. The valve clearance is easily swamped by ordinary levels of journal clearance. I'll bet that service limit is conservative and there are hundreds of machines whizzing around with no problems above it.
It can be at .10 MM and still open with the lobes rotation and allow fuel to be taken in. If he has new wires and caps, and gas is obviously flowing, then hes got some kind of restriction somewhere maybe in the exhaust. Least it seems logical to me.
Air....check
Fuel to carbs....check
Spark....check
Some breathability from the exhaust...questionable??
If it cant breath it cant drink in fuel and maybe that's why his colortune is only sporadically flashing???
Air....check
Fuel to carbs....check
Spark....check
Some breathability from the exhaust...questionable??
If it cant breath it cant drink in fuel and maybe that's why his colortune is only sporadically flashing???
E
esmithers
Guest
Checked
Checked
Okay, here what i have discovered.
the compression has went up since i have gotten it running.
1-160, 2-170, 3-150, 4-150 psi.
checked all the valves once more and ENSURED i used metric..
all but one are within the .03-.08. number 2 cylinder intake is .09-.10. seems they are all within spec.
only thing i think is the problem is may have burnt valves in both 1st and 2nd cylinder.
my wife has made it clear that i have invested too much time and money into this bike and suggesting i get rid of it. we all know when the wife is suggesting its more of command than a request.
So this being said anyway one to purchase this bike. if you would like to know what all has been replaced and fix just PM me.. thanks.
Checked
Okay, here what i have discovered.
the compression has went up since i have gotten it running.
1-160, 2-170, 3-150, 4-150 psi.
checked all the valves once more and ENSURED i used metric..
all but one are within the .03-.08. number 2 cylinder intake is .09-.10. seems they are all within spec.
only thing i think is the problem is may have burnt valves in both 1st and 2nd cylinder.
my wife has made it clear that i have invested too much time and money into this bike and suggesting i get rid of it. we all know when the wife is suggesting its more of command than a request.
So this being said anyway one to purchase this bike. if you would like to know what all has been replaced and fix just PM me.. thanks.
G
Guest
Guest
Eric, You can rule out valve clearance problems. .09 or .10mm is ok, lot's of folks set all valves to these specs. May be a bit more tapping noise, but no harm will co,e of it and it will run exactly the same as .03-.08. Sounds like you may have either a coil/ wiring problem or carb issues still. Good luck with it. Ray
E
esmithers
Guest
well the carbs are spotless and clean.... i have replaced the coils and with plugs out and arching on the side of the block it has a consistent and deep blue spark. this goes for all four of the plugs.
at first i thought maybe a thermal breakdown, but i have changed the coils to include making sure there is no arching from the plug wires. changed those as well to ensure that's not happening.
everything is checking out and only thing that seems plausiable would be valves are not seating properly.
anyone in the southeastern portion of Ga willing to come check it out, i shoot you some money and you can try your luck on it. I am in the middle of buying a house and well the wife doesnt want me purchasing or working on this thing till i have moved to the new house and we have established ourselves.
at first i thought maybe a thermal breakdown, but i have changed the coils to include making sure there is no arching from the plug wires. changed those as well to ensure that's not happening.
everything is checking out and only thing that seems plausiable would be valves are not seating properly.
anyone in the southeastern portion of Ga willing to come check it out, i shoot you some money and you can try your luck on it. I am in the middle of buying a house and well the wife doesnt want me purchasing or working on this thing till i have moved to the new house and we have established ourselves.
G
Guest
Guest
Eric, If your valves were the problem, you couldn't get that kind of compression. If you are sure about the coils and wiring, then you must have something going on with the carbs. Do the carbs hold the correct bowl levels? If so, then you may still have some sort of passage plugged? If not that are you sure the petcock vacuum is holding? Carb boots and orings good? I'm running out of ideas. Ray
E
esmithers
Guest
Do you think the signal generator could be causing the problems? the carbs were rebuilt initially by Chef. they were spotless and clean and was set by him. He did a great job cleaning and bench sync them. i torn them apart and separated the floats according to carb body to keep the same setting as they were just set. i soaked them for two day and pushed over 110 PSI through the passages. with the bike running i can have fuel dropping from the bowls no problem.
Vacuum port is working and the petcock is flowing the fuel.
Vacuum port is working and the petcock is flowing the fuel.
G
Guest
Guest
Bad igniter?
It cant BREATH!!!!!! What about an exhaust obstruction....like I mentioned before? 100% proof positive its open to the fullest extent? Doesnt take but overnight for mice to fill it with nesting material.
Well, he did say he had deep blue spark on all four- hopefully at right time.
G
Guest
Guest
With the weird valve clearances you possibly have a bad camshaft.
Steve
GS Whisperer
E
esmithers
Guest
Ok good point chuck.. i will remove the exhaust and blow it out to make sure there are no obstructions. if this turns out to be it, i will **** a brick and feel like a fool.
rereading what i wrote Steve. i notice i didnt correctly explain my Coil procedure. so here goes. the left coil fires number 1 and 4 cylinders. right coil fires the number 2 and 3 cylinders. all i did was remove the wires and had the right power 1 & 4 and left power 2 & 3. Additionally i also had the plug going to 1 and 4 switched. just swapped the sides. all this created no difference. If this incorrect please let me know. i was understanding that left fires 1-4 and right fired 2-3
Chef: camshaft look cleaned and unlblemished, no wear to be seen. also bike shows 13100 miles on ODO. though that means nothing but cam looked straight and it was engaging the shims to push the valves. Ignitor was replaced when i originally got the bike and could not get it to fire the plugs. to include the R/R unit and Stator. all brand new except the Ignitor. and one forum member stated on here that Ignitors are not very prone to malfunctioning. so i replaced anyway and it cured the problem (this was not a case of poor connection either.)
So just spoke with a buddy of mine who is a FAST cert tech. and was told that the head maybe cracked/warped or gasket is blown. I told him great i have a yard ornament that will rust till i will drop money into a 650.
I think i will just go ride my Madura down the road to feel the breeze through my hair
rereading what i wrote Steve. i notice i didnt correctly explain my Coil procedure. so here goes. the left coil fires number 1 and 4 cylinders. right coil fires the number 2 and 3 cylinders. all i did was remove the wires and had the right power 1 & 4 and left power 2 & 3. Additionally i also had the plug going to 1 and 4 switched. just swapped the sides. all this created no difference. If this incorrect please let me know. i was understanding that left fires 1-4 and right fired 2-3
Chef: camshaft look cleaned and unlblemished, no wear to be seen. also bike shows 13100 miles on ODO. though that means nothing but cam looked straight and it was engaging the shims to push the valves. Ignitor was replaced when i originally got the bike and could not get it to fire the plugs. to include the R/R unit and Stator. all brand new except the Ignitor. and one forum member stated on here that Ignitors are not very prone to malfunctioning. so i replaced anyway and it cured the problem (this was not a case of poor connection either.)
So just spoke with a buddy of mine who is a FAST cert tech. and was told that the head maybe cracked/warped or gasket is blown. I told him great i have a yard ornament that will rust till i will drop money into a 650.
I think i will just go ride my Madura down the road to feel the breeze through my hair
She can be replaced.
G
Guest
Guest
Seems like the head would have to be good, you have pretty good compression numbers. I guess you might try a cylinder leak down test to be sure. I wonder if Chuck might have something there. Wouldn't take much to do a lot of damage to the exhaust flow.
L
lemonshindig
Guest
+1 clogged exhaust. There really isn't much that is common between 1 & 2.
Also, it COULD be a bad head gasket, depending on how you did your compression check. If you had all 4 plugs out while doing the check, and your compression came out good, then the head gasket is fine. However, if the gasket is blown between 1 & 2, and you replaced the spark plug in each cylinder as you went, then that plug would hold the compression in via the blown gasket passageway.
Also, it COULD be a bad head gasket, depending on how you did your compression check. If you had all 4 plugs out while doing the check, and your compression came out good, then the head gasket is fine. However, if the gasket is blown between 1 & 2, and you replaced the spark plug in each cylinder as you went, then that plug would hold the compression in via the blown gasket passageway.
Agemax
Forum Guru
no it wont, if #1 is up on the compression stroke, #2 will be near bottom with at least 1 valve partially open, so it wont hold any compression between cylinders.
L
lemonshindig
Guest
I stand corrected.
E
esmithers
Guest
Update
Update
Okay, i have removed the exhaust blown it out and washed it out with water to push anything that the air didnt get out.. hung out to drip dry.
While that was drip drying i checked the clearance on the shim/lash per the Suzuki Service manual from bikecliffs site. everything was within spec and ok. replace the valve cover back on and tighten everything down.
cleaned the plugs and made sure connections were connected and seated. charged the battery. while exhaust was off i looked into each cylinder and witness both intake and exhaust valves move in and out so they are performing as needed. bought new fuel line hose and vacuum hose.
all this was done i placed the exhaust back on the bike and put the fuel tank on the bike and notice it had like half gallon if that in the tank so had the tank leaning on the petcock side to ensure fuel is flowing.
turn the valve to PRI and notice a dribble but then no flow of fuel. so i placed it on RES and cranked over the bike.. didnt crank up and run. place the charger on JUMP mode and turned the bike over and the bike failed to fire up and run.. shot some ether in the intake of the breather case and it acted like it wanted to run but nothing happen.
So with all this i am taking a break, once i have calmed down and cooled off i am heading to Gas station to get some gas and place in the bike take top off the tank. once this happens i will try to crank the bike and hope it was just starving for fuel and the bowls were not all filling up. wish me luck and hope after this head ache i get some great results.
P.S. still leary of the Signal Generator (only part i have not replaced for the Ignition system.) If you or someone you know has a S/G that your willing to part ways with please let me know. I would like to get it from you. thanks.
Update
Okay, i have removed the exhaust blown it out and washed it out with water to push anything that the air didnt get out.. hung out to drip dry.
While that was drip drying i checked the clearance on the shim/lash per the Suzuki Service manual from bikecliffs site. everything was within spec and ok. replace the valve cover back on and tighten everything down.
cleaned the plugs and made sure connections were connected and seated. charged the battery. while exhaust was off i looked into each cylinder and witness both intake and exhaust valves move in and out so they are performing as needed. bought new fuel line hose and vacuum hose.
all this was done i placed the exhaust back on the bike and put the fuel tank on the bike and notice it had like half gallon if that in the tank so had the tank leaning on the petcock side to ensure fuel is flowing.
turn the valve to PRI and notice a dribble but then no flow of fuel. so i placed it on RES and cranked over the bike.. didnt crank up and run. place the charger on JUMP mode and turned the bike over and the bike failed to fire up and run.. shot some ether in the intake of the breather case and it acted like it wanted to run but nothing happen.
So with all this i am taking a break, once i have calmed down and cooled off i am heading to Gas station to get some gas and place in the bike take top off the tank. once this happens i will try to crank the bike and hope it was just starving for fuel and the bowls were not all filling up. wish me luck and hope after this head ache i get some great results.
P.S. still leary of the Signal Generator (only part i have not replaced for the Ignition system.) If you or someone you know has a S/G that your willing to part ways with please let me know. I would like to get it from you. thanks.