Yamaha Warrior 350 engine and transmission overhaul (rebuild part 3)
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- Опубліковано 22 сер 2024
- In this video I show how I disasembled, diagnosed, and repaired my Yamaha Warrior 350 engine and transmission.
Please feel free to leave any questions down below, I would be happy to answer them!
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Really good breakdown of your process. Not sure why you have some negative comments. I just upgraded my piston to a 10.25:1 in my '98 Big Bear 350 which is very similar to the warrior.
Thank you! Yeah they use the same top end and everything I bieleve
I'm rebuilding my 2nd warrior,,1st 1 I paid for rebuild,,but removed engine and put back my self , thanks for the in depth
Of course! Sounds like a great project!
How much did they charge u for a rebuild
just found this video,you are defiantly not a mechanic,but what you are is methodical, and intelligent,this is a very good overview of necessary steps required for this overhaul,well done.50 year 2 ticket mechanic, and still learning
Eggr.__
That tiny little roller is a key for the oil pump, I’m 3 years to late but I’m here
It looks similar but I replaced the oil pump and the old one wasn’t missing it
It wasn't the pin holding the top timing chain gear? I've dropped one into the engine on a yakama timberwolf. Slippery little buggers.
6:55 I forget how spoiled I am having the 1/2” Milwaukee impact like I have. It’s not everyday I use it but it’s times like this I’m sure glad I’m not dragging out a hose lol
I am doing the same thing on my 1997 350 warrior now. Just split cases and waiting to get my parts
Awesome! Let me know how it goes!
Will do. Gonna be a pretty penny. Did you see the last video?
It was lack of oil flow from the filter and she got hot and ruined the rod bearing and crank bearings and crank is junk too.
@@DaytonTrailRiders I will check it out now! Yeah my neghbor had that issue because he stripped out all the oil filter bolts and never changed it haha. I welded some nuts on the end in order to get the cover off and man that thing was so filthy with clutch dust. It's no wonder he didn't get any oil up to the top end!
Mine was from black rtv in the oil filter housing and clogging up the oil jacket from whoever worked on it before me.
Ur the man for these videos🙏🏼🙏🏼
Thank you!
On my 02 Yamaha warrior I decided to upgrade to have the 366 big bore kit I loved how much more HP it gives out I had a guy do my bottom end rebuild I would have totally lost on what gears go where if I opened up the case and be confused on where the gears go in my transmission but I was good with doing the top end replacement
You have a nice four wheeler
Thank you!
Some one had this apart before b/c red silicone is not factory. So they left some extras in there, and it got chewed up
Agreed
Any ideas on why my 2003 Yamaha Warrior is stuck in Gear? I recently put a new top end on it and Completely put the motor back together now it doesn’t shift. I have to hold the clutch but it stutters but wont start
I have a 87 warrior i put a new crank in it and if i line the crank gear dot and counter balance dit they hit. One 1 position it doesn't and dots ar way off
I started on my 95 warrior about a month ago, and I finally have all the parts and tools. The connecting rod bearing exploded in there. This weekend I plan to split the cases. Any tips for getting the crankshaft apart to take the con rod off?
I actually did not go this far into the crank. The reason being, it was a hot rods crank so it was obviously replaced and after I took all the measurements, everything was within spec
@@everythingmechanical_yt Since mine is surely screwed up, I went ahead and ordered a Vesrah. I would have gone with a hot rods, but I don’t have that much money so I had to stick to something a little more budget friendly. Thanks for replying.
@@salmonisyummiyeet163 those should be good! Let me know how they turn out
@@everythingmechanical_yt Update: returned Vesrah ConRod, Bought full Hot Rods +4 Stroker crankshaft, have the bottom end back together, and I have an 84mm stroker piston I’m about to order. So yeah, changes were made after I found out I’d have to drive 4 hours to have my crank rebuilt.
@@salmonisyummiyeet163 sounds awesome!!!!
Watching this now but hope I dont need it lol
rebuilding my 350 and that broken peice looks like the cam end where the sproket goes on same with that little pin
Could anyone help me it goes in reverse(warrior 350 2001) but when in 1st gear it just idles no budge no cutting off no nothing just idle i did rebuild the engine from
Top the bottom any help would be nice there’s nothing about this around the internet
At 3:25 on the video I know that's the oil but on the other side where you can take off the lid what liquid goes in there?
Did you ever find out what that pin like roller was for? Im having to replace my crank and found the same pin in my casings
I didn’t… I think it must have been left over from another rebuild where they didn’t clean it out well enough
It's from A old and replaced cam shaft where that top timing chain sprocket sits on.@@everythingmechanical_yt
Great video! I will be rebuilding my raptor 350 tomorrow, can you help with the torque specs all around ?
Yeah of course! What really helped me was downloading yamahas service manual. I found it for free online and it includes the procedure for rebuilding everything including all the torque specs. Most of thr m8 bolts used on covers and stuff get torqued to 7.2ft lbs
@@everythingmechanical_yt appreciate it man! Would you have a link to download the manual ?
@@robertoguerrero4043 yes, here it is www.manualslib.com/manual/941548/Yamaha-Yfm350x-Warrior.html
@@everythingmechanical_yt do you have a ig? I need to ask a few questions about the clutch side.
We need to see this as it comes apart skip to many steps brother
It's pretty straightforward all you need to do is take everything apart.
Why you didn’t show how you put the rings on the piston and when you did the valves you didn’t show nothing this whut we want to see
So, what if it doesn’t shift through the gears?
That means you did it wrong
@@everythingmechanical_yt I have a question. I fixed the shifting issue. But my question is that when I put it in neutral the sprocket still spins. Is that normal?
@@skeletonweevil8511 when you put the transmission in neutral, you should be able to spin the input shaft, but the output shaft should not spin. It may be possible that it spins a little bit but should stop if you hold it with your hand (it's been awhile since I did this so I don't completely remember). If it seems to still spin while you spin the input shaft it must still be in gear and something isn't right
@@everythingmechanical_yt hmmm, okay. Thanks a lot for responding and trying to help. Really appreciate it. I noticed that if I remove the top gear that connects to the top gear of the output shaft then it stops. Idk I’m just confused at this point. Trying to fix it because I hired someone to rebuild it and they built it wrong. Think I’m getting closer though
@@skeletonweevil8511 no problem. Watch the video and see what gear you removed. It's possible it was just stuck in thag specific gear and just spins as if you lost that gear. Also make sure you have it in neutral, not first or second. The roller should be sitting in the small half moon looking notch on the shift star and the deeper grooves are individual gears
Nice video dude.👍🏼👍🏼
So I rebuilt warrior 350. Put a new piston from amazon in it because it had a 5 star rating. Crankshaft spins fine, new timing chain and valve clearance is set properly. Once I install cam the motor only turn half way and stop forward or backwards. No spark plug is in it so it should spin freely but it’s not. I took the cam back out and noticed a deep scratch inside head like cam is too big to spin but it’s the original cam and was spinning fine before the rebuild. TDC is perfect so idk what else it could be to cause the original cam to not turn. Can someone give me suggestions please?
Did you time it up properly?
you need tyres my friend
Yes, I did. If you watch to the end of the video I show the new tires I put on
the pin you found
Have you ever broken a cam chain on one of these warrior engines? There's a local warrior on FB listed for $1000 that snapped a cam chain and I'm tempted to pick it up. He said a mechanic checked it out and nothing else was damaged, but that's pretty unlikely in my experience. What do you think, send it or pass?
Make sure you know the prices in your area. I would only buy it if it's a really really good deal. Usually on these engines the timing chain will stretch and cause a "knock" as it slaps against the bore. If it actually snapped, it must have been doing this for awhile. It's possible that nothing else is damaged, but it's likely that the engine has a lot of hours and wear on it, it takes a lot to snap one of those
@@everythingmechanical_yt Thanks for your feedback man I really appreciate it. KBB says it's worth 2k in good condition, but I'm not sure if people even care about KBB or not. I'm new to the market, I'll have to watch it for awhile. Cam chains are cheap and I'll be doing the work, but if the whole engine needs to be overhauled, I'd pass.
@@eddiesheeran5791 yeah the problem is it won't run when you get there. If I were you I would see if I could talk him down a bit. $1000 isn't bad in my area but it differs. Based on what you said I'd say it probably has a good amount of wear on it
@@eddiesheeran5791 1000 is to much
..first ask yourself why did it break? Most likely it's beat on...or even worse,it's due for a full rebuild
@@kalieking5561 I bought it anyway. The kid + father were both lying POS, it didn't need a cam chain. There was piston skirt in the crankcase, and the motor was locked up. They had drained the oil beforehand "to do me a favor" - what they actually did was hide the evidence of the engine grenading. I haven't torn it down any further yet. Trusting people is a REALLY BAD idea. If you're meeting with a random seller, assume everything they say is a LIE unless you can verify the claims yourself. I bought it anyway because I knew it needed an engine and I wanted to build one myself.
About how much does it cost to rebuild it
Around 700$ that bores to 366 witha crank
After finding this video I want to put this comment to see if anyone would know possibly what’s wrong with my quad. I got a 2007 Yamaha raptor 350 I’m in the middle of doing the timing chain and when I drained the oil I had some metal in it but not a lot then I took the oil filter off and had a bunch of metal shavings on the filter and in the oil filter housing. When my quad is hot it doesn’t like it shift into neutral does anything think that the neutral gearing in the engine is bad or could it be something else causing my issue?
A lot of people think they have metal in their oil filter when it’s really just clutch dust from normal wear. Unless you have chunks of metal in the filter or more likely the screen, you’re probably okay. Check to see if the particles are magnetic first. As far as neutral being hard to find, your shift star or spring could in theory be worn out but I’d say it’s unlikely. If your bike has an aftermarket direct mount shifter that can make it harder to find too.
@@everythingmechanical_yt I had some pretty small metal chunks in the oil it’s self but nothing huge. I didn’t know if the shift cam assembly would cause something like that or possibly the neutral gear itself is going in wheeler. I just don’t want to run it and have something in the gearing blow or something if it’s potentially only the shift assembly
@@partytime11 I doubt you will, honestly these engines are really tough and the oil pumps are really strong, I’ve seen some pretty big chunks of metal in the bottom of these engines even a tooth off 4th gear and we didn’t know until I tore it apart for a rod knock. I’d check if the chunks are magnetic but again if it looks like a little bit of glitter in the oil filter it’s probably just clutch dust
@@everythingmechanical_yt ok good to know thank you for your opinion cause I’ve been worried I got to take the engine out and do a rebuild which is something I don’t want to do
10:54 oil pump
I found that pin sitting in my engine too i dont know where it came from so let me know please
Check the pin at the end of the crankshaft, and all needle bearings. I never found out what mine went to, but it doesn't mean yours didn't come out of something. I bieleve mine was due to a bad rebuild in the past. Let me know if this helps
I'm pretty sure they come out of the small springs that you see at 7:56. I pulled my engine apart today and found one as well. Three of them have the inner roller, the other three don't. Hope that helps.
@@aaronqk42 I may have to look into that. Thank you!!!
That pin came from the oil pump. Goes through the shaft behind the impeller
Doesn't come from oil pump as mine was there and its also alot bigger than the pump pin I've found the exact same pin type roller in mine, it's what I'm trying to get to the bottom of right now
My 95 warrior 350 will blow some blue smoke after on for a while. Is this what I need done? Thanks
It could need new piston rings or valve guide seals. If your quad burns oil (blows blue smoke) after it's warmed up, you likely need new piston rings. If it's only when it starts up and goes away once the engine warms up, it may just need new valve guide seals. I demonstrate how to do these in the video, however both piston rings and valve guide seals can be done without removing the engine from the quad. I have a video doing piston rings on a Yamaha Wolverine 350 that you can follow since it uses the same top end. Let me know if this helps!
@@everythingmechanical_yt Really appreciate your prompt response. When it warms up and I accelerate a get some blue smoke mainly from the header because the screw came undone. If I can do this without tearing all down like you did it would be super incredible. Would you please share the link to the video you mentioned or the exact name of vid to look it up on your channel. Thanks again
@@luly8083 from what your saying, it sounds like its probably piston rings. Here is the link to the video. Again it's a different quad but the same top end so it's the same procedure. Here is the link: ua-cam.com/video/zTBeu9auFFE/v-deo.html
@@everythingmechanical_yt super sweet thanks.
@@luly8083 of course! Let me know if you have any more questions
At 4:20 what liquid goes into there?
That’s just a view hole so that you can see the marks on the flywheel for finding tdc. You don’t put any fluid in there, the engine oil that you put in on the other side is the only fluid needed for this engine
its from a previous cam fail
That actually makes a lot of sense since the previous owner said that he had to put a cam in it. Thank you for this!
How did your get the pins for the valve rocker arms out?
I never actually rememoved them. Mine were nice and tight so I didn't see the need to go that far. However I bieleve they make a tool for this
@@everythingmechanical_yt didn't you have to get them out to get the springs out?
No, just rememove the cam and lift them up
@@everythingmechanical_yt alright cool, thank you
@@garyspiegel6901 no problem
do you know hot to fix a slung rod ?
Yes. Obviously you would need a new connecting rod. Since these can't be removed from the crankshaft on warriors without major equipment, you will most likely need to replace the entire crankshaft as well. Then repair or replace anything else that got damaged when the rod broke.
@@everythingmechanical_yt how much you think it’ll cost to do all of that
@@blockboymenace6999 it depends on what parts you need and what brands you go with. I have a hot rods crank in mine but weisco is also good. Then add on whatever other parts were damaged when your rod broke
@@everythingmechanical_yt you think i can pay you to rebuild mine because people where im at don’t know how
@@blockboymenace6999 sorry man that's just not really something I do
U left of most important part
Wich part is of most importance
Did you replace oil seals
Yeah all of them
@@everythingmechanical_yt I’m currently rebuilding a raptor 350 (same bottom end) I need to replace the bearings and oil seals also. Can you provide me info were you got the bearings and seals.
Hey where are you from man?
Connecticut
Where did you get your rebuild kit ?
I didn't buy a specific kit for everything but I did buy the hot rods transmission bearings kit, tusk seal kit and a gasket kit off ebay. The rings and other parts I bought genuine yamaha from partzilla. Let me know if this helps
50 aaaahhhmmm's in the first 2 mins?? WOW, slow down... listen to ur vids and count how many ahhhhhmmms... ahhhhmsss ahhhhhmmmms u say cuz u talk too fast.... ahhhhhmmmm ahhhhhmmmmm ahhhhhhhmmmm wow... ahhhhmmmmm ahhhhhmmmmm ahhhhhmmm