Thank you for making this video, ive just rebulit my 98' warrior in auto shop and ive spent 2 days trying to figure out how to time it. Now that ive seen this video, i can have it up and running lol
How do I check timing on a yamaha bigbear 350, 4x4. Is that the same procedure? TDC then make sure the cam gear mark is lined with the top mark? Thanks!
I currently made a "novice " mistake while doing a timing chain replacement on my '88 yamaha moto 4 350. I forgot to do the first step of loosening the cam gear before the removal of the flywheel until I needed to go up top. well... my inexperience showed through and when I went to loosen the cam gear bolt the cam rotated and when I went to use a pry bar to hold the bottom in place it slipped and again the cam rotated... the same senerio when going to tighten happened... it rotated "clockwise " as well. So now I have goin on is the cam gear now has about a half of a rotation of "free play" meaning no resistance... it spins freely... do I need to take the cam out and reset it to TDC position and insert it back in the head ? I'm lost as to what is going on. This was all done by hand no motor running at all... in fact I still have it apart waiting to see what I need to do to correct the added problem that I've made for myself. Could you do a cam removal video at some point ... I'd also would like to see valve replacement and arms done... seems people skip those areas of interest. I wished I'd of used my head better on this project. .. I could be out ridin right now. But your help would be VERY welcome with my situation. Thanks and I enjoy your videos !
Let's get 180 out is top dead center on the compression stroke I'm curious because I can't get mine to run and I've set the time and twice looking for a little more info
I have 2003 Yamaha warrior 350 put the timing on the T and the timing sprocket on the marks try to start and put starting fluid and it just pop but won’t start I did new top end and new valves they are adjusted don’t no what’s going on
It's 5:07 p.m. Tuesday 22nd of August I have the crankshaft on the t Mark lined up and my camera shop wants you to be plenty 22 and the number one person is not all the way up I don't understand it
I have a 350 warrior that needs the timing set I was wondering if I set the T at the top and every time I go to put the cam sprocket on it moves to the T from top dead center
Hey guy. Thanks for the vid. Good job. Could you help me with a 92 yamaha 250 timberwolf. Changing the head gasket on it. Got to the part where you take the timing chain off. The marks for tdc dont line up. I keep turning it but know luck. When the mark on the cam sprocket is on, the mark on the bottom is about 1/2 to 3/4 to the left. Thank You for any suggestions.
The video was very helpful, but when I have the cam gear in and the chain off, I can move the sprocket without the cam turning. The cam gear can move about a quorter turn without any resistance, where do I set the gear
Did your mark on the gear match up perfectly with the line on the engine ?i really couldn't see that well on your video,my brother warrior is not lined up an my buddy warrior wasnt either but buddys starts right up an runs great an my brothers starts right up but when you hold throttle wide open it bogs bad,iv cleaned carb an put bigger jet in there
So I pulled my timing cover off today. Noticed I’m way out of timing. Can I just pull the cam gear and the chain back in place so it will be in timing..?? Or do I have to do something with the valves!? I’m lost lol
Johnny Alexander yes you can just pull the gear and put it in time. However, it did it for a reason. Check to make sure your chain and guides are in good shape and check that your key isn’t sheared on the flywheel. Usually the problem is a sheared key.
If you have the crank lind up with the T and cam gear mark lined up with that notch. How do you know its not a 180 deg out and not on the compression stroke
Good question, that's common to think that. However, the cam is what controls what is the compression stroke and what is the exhaust stroke. So you could pull the gear off and rotate the flywheel 360 degrees and it won't change anything. Reason why is the spark signal is picked up by the flywheel, so a spark is sent every 360 degrees of the crank anyway.
I have trouble with my Kodiak 400 backfiring and doesn't start. did the carb, valves adjustment and all. eventually what I found is when I align the TDC line on the sprocket, the flywheel TDC T mark is not there at all. Huge mistake. so when I adjusted the valves counting on the flywheel T mark, I was so off that I had a valve gap 25 times larger than it should! crazy. Any ideas how to rectify and get the flywheel aligned as the sprocket? I did check the piston position while aligning the sprocket TDC line and indeed it was right at the top, also valves at the top so it is the flywheel that is off and I dont know how to fix it....
How do I know if the timing is bad cuando I just got a warrior today and it's back firing a lot and don't rev like it should I was thinking it's the timing but don't know for sure
when i line the t up at the bottom my mark on the cam gear is off would this make my bike make a clicking sound jw i no it could be the valves also jus trying to find out if it could be anything else
I have a couple questions maybe you can help me with. I need to do this to my 85 Yamaha YTM 225 DXn three wheeler. it looks (from the Clymer manual) like what you're doing here is pretty much the same thing to set my timing. I was riding and she stalled and wouldn't start, I have since cleaned the carb about 6 times, put in new floats, Needle valve and seat and a new air / fuel screw. I put in a new spark plug and a brand new coil. I got a great spark, im getting gas and I got good compression, but it still wont start it "pops" once in awhile... though. Im thinking she jumped timing. so I took off the side plate and I took out the screw in the crank case... when I align up the "T" with the groove in the case, the timing mark on the cam gear is at 9 o'clock instead of 12 o' clock. When I put the cam gear mark to 12 o'clock, the "T" is nowhere to be found. So I need to re do the timing correct? If so, when I take the cam gear off, do I need to loosen or remove the auto chain tensioner? also, I can still buy a new chain and cam gear but I can find any part number or any info on the crank shaft gear. My cam gear looks good still, (to me anyhow) no badly worn teeth, no chips or broken teeth... can the chain be just worn or stretched? it looks good and is still nice and tight though. What about the Crank gear? do i need t replace it too? can I replace it? I cannot find it on any of the parts diagrams as a single piece.. it looks like its comes on the crank assembly which is listed as Obsolete? what do you think? Thanks!!
You'll always have to remove and reset the tensioner when taking the chain on and off. With the flywheel at t the gear should be at 12 o clock or 6 o clock. If it's at 9 then you have an issue and should check for bent valves as well.
+Goody's Atv cool thanks! I was looking through the repair manual and it doesn't even mention replacing the crank gear, is it changeable or is that where i have to buy the whole new shaft? I will also check the valves as well. Could this be why it just died though? I was riding, going very slow through a small muddy brook maybe 3 feet wide, no real water just black mud, i was going less than 5 mph and i was almost through it and the trike just shut down, no pop, backfire or sputter... Just shut down like i shut it off!
i will check tomorrow... thanks! well when i got home from work today i took the side cover off and removed the auto chain tensioner, i popped off the cam gear which to me looked fine... i then turned the crank until the "T" was lined up with the timing mark, then i turned the cam until the key was pointing at 12 o'clock, reinstalled the gear with the timing mark pointing up at 12 o'clock also. i put everything back together and it still wont start...lol only now, everything feels tight and if i flip the decompression lever up or not, it makes no difference. so tomorrow i'll take it all apart again and see what happened. maybe something is not aligned right. when you align up all the timing marks, the piston should be either at the top of the compression stroke or the top of the exhaust stroke right? does it matter which one?
Adjust the valves. The intake rocker may be to tight. Not allowing the intake valve to close all the way. This would lead to back fire through the carb.
lol i just changed my timing chain for a brand new one is it normal that i hear it rubbing against the guides? it sounds like the chain is too tight but its a stock one and the adjust is in 4th or 5th notch
@@BeastlyWarrior228 when i peak through the hole i cant see through it its blocked what does that mean if you know and dont mind me asking lol im new at this atv shit and i wanna learn everything i can
@@BeastlyWarrior228 i can see the flywheel but i cant see a t anywhere how can i find it 🤔 sorry it took long to reply i dont get notifications from UA-cam thanks for helping me out too means a lot man
i got. a 99 warrior it runs fine at half throttle but when i go to get down on it it backfires and cuts out but i let off the gas a little and its good but cant run full throttle i need help
You have to richen/lessen the gasoline intake from mixture screw in carburetor. You are running too lean/rich (engine is getting too much air compared to gasoline or other way) Also clean your air filter and carburetor if mixture change did not help.
i did that and clean the carb. and it still doing it it has fmf pipe on it my brother told to get a one size biger jet . it has a stock carb on it would that take care of it. the backfireing it shoots flame out of the exaust
Try getting a jet kit for your carb from Sigma or dynatech, maybe your jets are wrong size, they sell specific jet kit for your model, you can find those kits from Ebay. Also check if your floater is stuck in carb, hit lower carb body with hammer gently few times if you hear any movement and that does not help check the slider needle if there is broken bracket.
+Goody's Atv if you got the t lined up down in there with the line on the case, then you woulnt have a problem with rocker arms being in right position Right ???? please tell me
Mine is doing the same thing. Just lined up top dead center and I'm just getting flames back out the carb. I do have an after market cdi on it. Any suggestions?
Thanks man 8 years later still helpful
Where’s the tensioner
Right side of the head
Thank you for making this video, ive just rebulit my 98' warrior in auto shop and ive spent 2 days trying to figure out how to time it. Now that ive seen this video, i can have it up and running lol
Been watching this religiously well waiting for my timing chain to come in haha
after you installed it did your hear the chain rubbing alot more? i never heard it run proper and now it sounds like something is to tight
How do I check timing on a yamaha bigbear 350, 4x4. Is that the same procedure? TDC then make sure the cam gear mark is lined with the top mark?
Thanks!
I currently made a "novice " mistake while doing a timing chain replacement on my '88 yamaha moto 4 350. I forgot to do the first step of loosening the cam gear before the removal of the flywheel until I needed to go up top.
well... my inexperience showed through and when I went to loosen the cam gear bolt the cam rotated and when I went to use a pry bar to hold the bottom in place it slipped and again the cam rotated... the same senerio when going to tighten happened... it rotated "clockwise " as well. So now I have goin on is the cam gear now has about a half of a rotation of "free play" meaning no resistance... it spins freely... do I need to take the cam out and reset it to TDC position and insert it back in the head ? I'm lost as to what is going on. This was all done by hand no motor running at all... in fact I still have it apart waiting to see what I need to do to correct the added problem that I've made for myself. Could you do a cam removal video at some point ... I'd also would like to see valve replacement and arms done... seems people skip those areas of interest. I wished I'd of used my head better on this project. .. I could be out ridin right now. But your help would be VERY welcome with my situation. Thanks and I enjoy your videos !
Let's get 180 out is top dead center on the compression stroke I'm curious because I can't get mine to run and I've set the time and twice looking for a little more info
180 out on cam is tdc exhaust but either having the cam directly up or down is fine.
I have 2003 Yamaha warrior 350 put the timing on the T and the timing sprocket on the marks try to start and put starting fluid and it just pop but won’t start I did new top end and new valves they are adjusted don’t no what’s going on
Check that the key for the flywheel didn't shear.
So i got my 2000 Yamaha 350 Warrior in time by watching this but it won't start up. Any recommendations??
It's 5:07 p.m. Tuesday 22nd of August I have the crankshaft on the t Mark lined up and my camera shop wants you to be plenty 22 and the number one person is not all the way up I don't understand it
Cantsee anything.... What about the set pin how do you line it up for the cam gear will fit???
Could you advance the timing for more power or will it just screw up the whole engine?
I have a 350 warrior that needs the timing set I was wondering if I set the T at the top and every time I go to put the cam sprocket on it moves to the T from top dead center
Thank you sooo fuckkkking much
Can this cause the bike not to crank over even by hand?
How do you put the flywheel back on
Hey guy. Thanks for the vid. Good job. Could you help me with a 92 yamaha 250 timberwolf. Changing the head gasket on it. Got to the part where you take the timing chain off. The marks for tdc dont line up. I keep turning it but know luck. When the mark on the cam sprocket is on, the mark on the bottom is about 1/2 to 3/4 to the left. Thank You for any suggestions.
Tim Brown Your timing is off.
The video was very helpful, but when I have the cam gear in and the chain off, I can move the sprocket without the cam turning. The cam gear can move about a quorter turn without any resistance, where do I set the gear
Do you have the dowel pin in the cam?
Call me, 7153704820
Dakota Pingel can u help I got free play on my cam shaft gear is that normal my timing keeps jumping after I set there is about 1/2 inch play
James Meadow text me
James Meadow it's no big deal. All u do is get it top dead center and line the cam line up. Idk why their is play but it didn't matter
Did your mark on the gear match up perfectly with the line on the engine ?i really couldn't see that well on your video,my brother warrior is not lined up an my buddy warrior wasnt either but buddys starts right up an runs great an my brothers starts right up but when you hold throttle wide open it bogs bad,iv cleaned carb an put bigger jet in there
They will never line up perfectly but the more worn the timing chain is the further off it will be
thank you that's what i was thinking
So I pulled my timing cover off today. Noticed I’m way out of timing. Can I just pull the cam gear and the chain back in place so it will be in timing..?? Or do I have to do something with the valves!? I’m lost lol
Johnny Alexander yes you can just pull the gear and put it in time. However, it did it for a reason. Check to make sure your chain and guides are in good shape and check that your key isn’t sheared on the flywheel. Usually the problem is a sheared key.
@@BeastlyWarrior228 yeah the woodruff key
If you have the crank lind up with the T and cam gear mark lined up with that notch. How do you know its not a 180 deg out and not on the compression stroke
Good question, that's common to think that. However, the cam is what controls what is the compression stroke and what is the exhaust stroke. So you could pull the gear off and rotate the flywheel 360 degrees and it won't change anything. Reason why is the spark signal is picked up by the flywheel, so a spark is sent every 360 degrees of the crank anyway.
I have trouble with my Kodiak 400 backfiring and doesn't start. did the carb, valves adjustment and all.
eventually what I found is when I align the TDC line on the sprocket, the flywheel TDC T mark is not there at all. Huge mistake.
so when I adjusted the valves counting on the flywheel T mark, I was so off that I had a valve gap 25 times larger than it should! crazy.
Any ideas how to rectify and get the flywheel aligned as the sprocket? I did check the piston position while aligning the sprocket TDC line and indeed it was right at the top, also valves at the top so it is the flywheel that is off and I dont know how to fix it....
Sean check to see if the flywheel key is sheared.
@@BeastlyWarrior228 Yup. good observation. it was sheared!! annoying. Took a lot of work to find that out....
Sean crap, sorry o didn’t get back to you sooner.
@@BeastlyWarrior228 :)
You did spot it correctly!
How do I know if the timing is bad cuando I just got a warrior today and it's back firing a lot and don't rev like it should I was thinking it's the timing but don't know for sure
Carbrator might need cleaned too maybe
Ok so... how to find compression stroke?
When the dot on the cam sprocket lines up with the mark on the head you are at the top of the compression stroke.
could I borrow your experience in my own desperate need of help ?
So how much tension should the bolt be on the spring towards the chain?
when i line the t up at the bottom my mark on the cam gear is off would this make my bike make a clicking sound jw i no it could be the valves also jus trying to find out if it could be anything else
Timing chain is slapping the guides
I have a couple questions maybe you can help me with. I need to do this to my 85 Yamaha YTM 225 DXn three wheeler. it looks (from the Clymer manual) like what you're doing here is pretty much the same thing to set my timing. I was riding and she stalled and wouldn't start, I have since cleaned the carb about 6 times, put in new floats, Needle valve and seat and a new air / fuel screw. I put in a new spark plug and a brand new coil. I got a great spark, im getting gas and I got good compression, but it still wont start it "pops" once in awhile... though. Im thinking she jumped timing. so I took off the side plate and I took out the screw in the crank case... when I align up the "T" with the groove in the case, the timing mark on the cam gear is at 9 o'clock instead of 12 o' clock. When I put the cam gear mark to 12 o'clock, the "T" is nowhere to be found. So I need to re do the timing correct? If so, when I take the cam gear off, do I need to loosen or remove the auto chain tensioner? also, I can still buy a new chain and cam gear but I can find any part number or any info on the crank shaft gear. My cam gear looks good still, (to me anyhow) no badly worn teeth, no chips or broken teeth... can the chain be just worn or stretched? it looks good and is still nice and tight though. What about the Crank gear? do i need t replace it too? can I replace it? I cannot find it on any of the parts diagrams as a single piece.. it looks like its comes on the crank assembly which is listed as Obsolete? what do you think? Thanks!!
You'll always have to remove and reset the tensioner when taking the chain on and off. With the flywheel at t the gear should be at 12 o clock or 6 o clock. If it's at 9 then you have an issue and should check for bent valves as well.
+Goody's Atv cool thanks! I was looking through the repair manual and it doesn't even mention replacing the crank gear, is it changeable or is that where i have to buy the whole new shaft? I will also check the valves as well. Could this be why it just died though? I was riding, going very slow through a small muddy brook maybe 3 feet wide, no real water just black mud, i was going less than 5 mph and i was almost through it and the trike just shut down, no pop, backfire or sputter... Just shut down like i shut it off!
+hdrjunkie actually check to see if you have a sheared flywheel key.
i will check tomorrow... thanks! well when i got home from work today i took the side cover off and removed the auto chain tensioner, i popped off the cam gear which to me looked fine... i then turned the crank until the "T" was lined up with the timing mark, then i turned the cam until the key was pointing at 12 o'clock, reinstalled the gear with the timing mark pointing up at 12 o'clock also. i put everything back together and it still wont start...lol only now, everything feels tight and if i flip the decompression lever up or not, it makes no difference. so tomorrow i'll take it all apart again and see what happened. maybe something is not aligned right. when you align up all the timing marks, the piston should be either at the top of the compression stroke or the top of the exhaust stroke right? does it matter which one?
+hdrjunkie if you sheared a flywheel key the t won't be your true top dead center and it will throw your ignition timing off as well.
My warrior keeps back firing out the carb I have set the timing like 4 timez . When timing it do the lifters need to be up or down ?
Adjust the valves. The intake rocker may be to tight. Not allowing the intake valve to close all the way. This would lead to back fire through the carb.
ya i cant do that well, big hands lol
lol i just changed my timing chain for a brand new one is it normal that i hear it rubbing against the guides? it sounds like the chain is too tight but its a stock one and the adjust is in 4th or 5th notch
What does the timing Mark with F on it mean
Its a T
the f means fire you want it on the t for t d c
Warrior are bad about jumping time
What T are you talking about ?? Im kinda lost at that part
The T on the flywheel through the inspection hole in the cover.
@@BeastlyWarrior228 when i peak through the hole i cant see through it its blocked what does that mean if you know and dont mind me asking lol im new at this atv shit and i wanna learn everything i can
@@adriancorpus862 you pulled the plug out and can't see the flywheel?
@@BeastlyWarrior228 i can see the flywheel but i cant see a t anywhere how can i find it 🤔 sorry it took long to reply i dont get notifications from UA-cam thanks for helping me out too means a lot man
@@adriancorpus862 put a wrench on the bolt behind the Yamaha cover and turn the motor counter clockwise until you see the t on the flywheel.
Is it the same on a raptor 350? 2004
Misha Crum yes it is the same.
The warrior and the raptor have the same engine just the warrior had a pull start on it
i got. a 99 warrior it runs fine at half throttle but when i go to get down on it it backfires and cuts out but i let off the gas a little and its good but cant run full throttle i need help
You have to richen/lessen the gasoline intake from mixture screw in carburetor. You are running too lean/rich (engine is getting too much air compared to gasoline or other way)
Also clean your air filter and carburetor if mixture change did not help.
i did that and clean the carb. and it still doing it it has fmf pipe on it my brother told to get a one size biger jet . it has a stock carb on it would that take care of it. the backfireing it shoots flame out of the exaust
Try getting a jet kit for your carb from Sigma or dynatech, maybe your jets are wrong size, they sell specific jet kit for your model, you can find those kits from Ebay. Also check if your floater is stuck in carb, hit lower carb body with hammer gently few times if you hear any movement and that does not help check the slider needle if there is broken bracket.
www.ebay.com/itm/Yamaha-YFM350-YFM-350-cc-Warrior-6Sigma-Custom-Carburetor-Carb-Stage-1-3-Jet-Kit-/252818437661?epid=1255342096&hash=item3add27361d:g:E-MAAMXQDrJR1EJ9&vxp=mtr
i look up the jet kit it said 45 pilet 150 maine jet would give me the right gas to air mix but i really don't no much about jets
I need help please reply my ymf
It sound like my timing chain came off when I was riding and it cut off and will not start the start come on but sound like its still spinning
Start taking covers off too see if you see anything
Ok I will do that tomorrow thanks for the help
If it's off do I buy a new one or try to put it back on
The chain still on now when. I hit the start button it just spend
Hello I need help
With what
Do you have an email address I can ask some questions?
kgoodrich228@yahoo.com
Goody's Atv
Goody's Atv I need ur help I got the same problem as one other guy has with my top gear on cam shaft has 1/4 turn play in it
My warrior keeps back firing out the carb I have set the timing like 4 timez . When timing it do the lifters need to be up or down ?
If your cam is in the correct position then the rocker arm should be down and not putting any pressure on the valve
+Goody's Atv if you got the t lined up down in there with the line on the case, then you woulnt have a problem with rocker arms being in right position Right ???? please tell me
Mine is doing the same thing. Just lined up top dead center and I'm just getting flames back out the carb. I do have an after market cdi on it. Any suggestions?