Have a 99, purchased as a non-runner for a low price, I decided to remove the cylinder head. Would have never considered it without these educational videos. If I spend $100 to have it running I'd be shocked. Great job!
What I meant is that it is normal for the piston to be able to rock back and forth a tiny bit. The measurement made to determine wear requires removal of the cylinder. Then a bore gauge measures cylinder ID. A micrometer measures piston OD. A good machine shop can do this for you, and tell you if you can get away with just honing the cylinder, or if you'll require an overbore with new piston. Did you check the oil level? An overfilled crankcase can cause your symptoms, esp. with contaminated oil
I've used ATF, kerosene and acetone mixed together, left to sit for a couple of weeks, to break free stuck pistons. Works beautifully unless it's super corroded (then I just drill the piston crown out and cut what's left off of the cylinder wall unless I REALLY want to save the piston.)
I agree. When I heard this atv had been dropped into a lake, I feared the worst. These days I use it to pull a wagon and it gets some use almost every week.
Did you get the hidden screw out? Look at the 18:05 mark in Part 1, and I point it out. It is down in the little well that is normally covered by that cross brace I removed in Part 1.
Hello got same one, mine was smoking a lot and running very rough and died withing seconds. I bought it as a non runner. I removed the head and noticed that the piston has what I consider a lot of play. You mentioned there is suppose to be play on it but how much is too much. It ricks back and forward. Thanks a lot your videos are great.
You can just time it correctly on re-assembly, but if you are not sure of the condition of the motor, you might verify if it was in time before dis-assemblly, just out of curiosity, also to gie you an idea of the relationship of the cam gear to the head, or just watch my later video showing how to time it.
No, no cutting needed. Most of my project videos are grouped in playlists to make it easy to follow the series, I can't post a link direct to part 1, youtube is not allowing me to for some reason. Please view my playlists, and find the grizzly one there.
so i really hope u see this steve lol. i am doing my headgaskets cause a ehaxsy stud broke off. when taking the tensor out the inner part just sprung out and booop into the case. can i take the stator cover off and get it out? i hope so.
Just seeing this now. I do not think you can get to a screw dropped into the crankcase through there. If its where me, I'd drain the oil, then see if you can snake one of those inspection cameras down there to see if its sitting in the bottom.maybe you can grab it with one of those grabbers that has a small claw on the ends you open by pushing a button on the other end. User the camera to see where you are.
@@stevewatr not a screw.the trnsorner peice came out.i got the spring but that metal peice went down.tryed to find fish magnet it out but nope. I have gaskets coming anyway so the stator side can come off and I was ganna do oil anyway.
@@stevewatr just needed to know if it would be in there. But I was told it should be.just have to take that cover off.extra step.i am following your videos lol. Opening a shop soon but nice to have the info. And yes. Going to make sure I put the o ring on the cylinder first lol. But I got no ring compressor atm so just got to squeeze them in and make sure ring gaps are offset.
@@Mud_Dragon yeah, the magnet wants to stick to everything down in there except the part you are trying to grab. That's when the little claw parts grabbers are a help
GREAT VIDEO STEVE THANK YOU .PLEASE HELP ME WITH THIS PROBLEM...THE ENGINE KEEPS BLOWING OFF MY CARBURATOR OFF THE INTAKE MANIFOLD CAN YOU GIVE ME POINTERS ON HOW TO ADJUST MY INTAKE VALVES ATLEASE I WAS TOLD THATS WHAT IT COULD BE ...IT'S THE ame ebgine you have there it only has one thousand some odd miles on it .....THANK YOU ..TOM
+COZMICTOM Hi Tom. Valve clearance might be your problem. Mine sometimes "coughs" hard out the intake, mainly when trying to give it gas before it has sufficiently warmed up. But improper fuel mixture due to a blocked carb passage, or leaking rubber boot allowing engine to suck air cam cause this. Also, ignition timing issues from a sheared woodruff key can cause this.
Ive been doing this for 35 years. I love the realizm and honest. not pretending you know it all. Thank you for that. Love it
Have a 99, purchased as a non-runner for a low price, I decided to remove the cylinder head. Would have never considered it without these educational videos. If I spend $100 to have it running I'd be shocked. Great job!
Did you Succeed?
What I meant is that it is normal for the piston to be able to rock back and forth a tiny bit. The measurement made to determine wear requires removal of the cylinder. Then a bore gauge measures cylinder ID. A micrometer measures piston OD. A good machine shop can do this for you, and tell you if you can get away with just honing the cylinder, or if you'll require an overbore with new piston. Did you check the oil level? An overfilled crankcase can cause your symptoms, esp. with contaminated oil
Good luck with your quad, and thanks for watching my videos.
I've used ATF, kerosene and acetone mixed together, left to sit for a couple of weeks, to break free stuck pistons. Works beautifully unless it's super corroded (then I just drill the piston crown out and cut what's left off of the cylinder wall unless I REALLY want to save the piston.)
I agree. When I heard this atv had been dropped into a lake, I feared the worst. These days I use it to pull a wagon and it gets some use almost every week.
Amazing how after so long everything is so well oiled and shiney some more than others but still surprising
I learned a long time ago, don't try getting just enough room to do the job. Don't be afraid to take things off.
I DIDNT KNOW JAY LENNO WORKED ON ATV'S GREAT JOB! JK ABOUT THE JAY LENNO THING.
Thanks! I hope to do another ATV project eventually.
So many thanks, helped me so much with my "no-spark" 1999 600!
Did you get the hidden screw out? Look at the 18:05 mark in Part 1, and I point it out. It is down in the little well that is normally covered by that cross brace I removed in Part 1.
Hello got same one, mine was smoking a lot and running very rough and died withing seconds. I bought it as a non runner. I removed the head and noticed that the piston has what I consider a lot of play. You mentioned there is suppose to be play on it but how much is too much. It ricks back and forward. Thanks a lot your videos are great.
You can just time it correctly on re-assembly, but if you are not sure of the condition of the motor, you might verify if it was in time before dis-assemblly, just out of curiosity, also to gie you an idea of the relationship of the cam gear to the head, or just watch my later video showing how to time it.
Ive used a grease gun with spark plug adapter to move the piston before removing head
No, I got lucky with this one.Bought it cheap as a non-runner, and did not spend too much fixing it up.
Great work
good job Steve. very real and full of bs. very informative
No, no cutting needed. Most of my project videos are grouped in playlists to make it easy to follow the series, I can't post a link direct to part 1, youtube is not allowing me to for some reason. Please view my playlists, and find the grizzly one there.
Did you have to cut the bar that holds the cylinder head on? where is part 1 of this project
How did u get the valve cover off i belive i took all the screws out but it wont budge plz help
@Boomersays You are quite welcome.
what is 2001 yamaha big bear 400 head bolt torque specs
you saved me alot of time thanks!
You're welcome.
so i really hope u see this steve lol. i am doing my headgaskets cause a ehaxsy stud broke off. when taking the tensor out the inner part just sprung out and booop into the case. can i take the stator cover off and get it out? i hope so.
Just seeing this now. I do not think you can get to a screw dropped into the crankcase through there. If its where me, I'd drain the oil, then see if you can snake one of those inspection cameras down there to see if its sitting in the bottom.maybe you can grab it with one of those grabbers that has a small claw on the ends you open by pushing a button on the other end. User the camera to see where you are.
@@stevewatr not a screw.the trnsorner peice came out.i got the spring but that metal peice went down.tryed to find fish magnet it out but nope. I have gaskets coming anyway so the stator side can come off and I was ganna do oil anyway.
@@stevewatr just needed to know if it would be in there. But I was told it should be.just have to take that cover off.extra step.i am following your videos lol. Opening a shop soon but nice to have the info. And yes. Going to make sure I put the o ring on the cylinder first lol. But I got no ring compressor atm so just got to squeeze them in and make sure ring gaps are offset.
@@Mud_Dragon yeah, the magnet wants to stick to everything down in there except the part you are trying to grab. That's when the little claw parts grabbers are a help
Where project part 1?
GREAT VIDEO STEVE THANK YOU .PLEASE HELP ME WITH THIS PROBLEM...THE ENGINE KEEPS BLOWING OFF MY CARBURATOR OFF THE INTAKE MANIFOLD CAN YOU GIVE ME POINTERS ON HOW TO ADJUST MY INTAKE VALVES ATLEASE I WAS TOLD THATS WHAT IT COULD BE ...IT'S THE ame ebgine you have there it only has one thousand some odd miles on it .....THANK YOU ..TOM
+COZMICTOM Hi Tom. Valve clearance might be your problem. Mine sometimes "coughs" hard out the intake, mainly when trying to give it gas before it has sufficiently warmed up. But improper fuel mixture due to a blocked carb passage, or leaking rubber boot allowing engine to suck air cam cause this. Also, ignition timing issues from a sheared woodruff key can cause this.
OK THANK YOU ..I'LL CHECK IT OUT ..TOM
In the event your just doing rings and your machine is running would you wanna make sure that your at TDC before removing the cam
Do you have a garage to work in because you do a lot of projects in winter
nope. I try to avoid strictly outdoor projects this time of year. it only reached 28 degrees today and a 15 degree wind chill!
@Boomersays lol i have 1 just like that yfm 600 ive been watchin them all a lot lol
oops that should say NOT full of bs sorry steve lol
Tim Sanders lol, thanks.
who cares about the weather get with it