I’m assuming mine is stretched, it’s popping during acceleration, carb is brand new valves appear to be in spec but could be off due to timing off too. But when the T is lined up on crank the cam gear is either a tooth forward or a tooth backwards after I adjusted it. So prolly needs changed then valves adjusted go from there. This all just happened out of the blue. You did A great job btw. Thank you
Dude, I believe you just solved a problem for me. I did a top end on my warrior a year ago and could never get the timing spot on so I just went with it. I’ve since put a pro- design filter setup and supertrapp slip-on on it and been fooling with jetting and needle position. I’ve always had this right off idle like stutter. Dang timing. Thanks Keith!
I got a fairly abused Yamaha Big Bear 250 for practically free, it ended up having more engine in the oil then oil in the engine, done a complete motor rebuild and seems like the original timing chain has wayyyyyyyy too much slop.
Does anybody know where the serial number for the rear diff is on the 1998 big bear 350 4wd? I have ordered the All Balls Racing rear diff seal and bearing kit from Partzilla and it has the wrong bearing. I sent it back and they sent another and it still has the wrong bearing. I talked to someone at All Balls Racing and he says that it is the right bearing. He thinks that the previous owner replaced the rear diff with one from different model. I don't think so because when I bought it, it was only 5-6years old so I don't think it was. I am trying to get in touch with the guy I bought it from but that was 18 years ago. I found on the Yamaha website what the serial number is for the rear diff but not where the serial number is. I can't see, I am going to try to clean it up some more and see if I can find it but any help would be appreciated.
I don't really know where it is but I sold mine so I can't really look but I'd try maybe just looking it up on ebay usually they're good at knowing what years they fit
Trying to get myself prepared for when I do my timing chain on my warrior haha. Thanks for the video, made it look easy.
Thanks and good luck on your warrior
I’m assuming mine is stretched, it’s popping during acceleration, carb is brand new valves appear to be in spec but could be off due to timing off too. But when the T is lined up on crank the cam gear is either a tooth forward or a tooth backwards after I adjusted it. So prolly needs changed then valves adjusted go from there. This all just happened out of the blue. You did A great job btw. Thank you
Yeah I'd say it's stretched, and thank you.
Dude, I believe you just solved a problem for me. I did a top end on my warrior a year ago and could never get the timing spot on so I just went with it. I’ve since put a pro- design filter setup and supertrapp slip-on on it and been fooling with jetting and needle position. I’ve always had this right off idle like stutter. Dang timing. Thanks Keith!
I got a fairly abused Yamaha Big Bear 250 for practically free, it ended up having more engine in the oil then oil in the engine, done a complete motor rebuild and seems like the original timing chain has wayyyyyyyy too much slop.
Can the chain guide's be replaced without removing the head?
One of them can
Thank you. Very helpful!
Thanks, glad it helped someone
good video man.
Thanks
Didn't you leave out a gear lower left hand side when you took it off I thought I seen another gear
Do you know what I can get a centrifical wet clutch for an 89 Yamaha Big Bear 350cc 4x4 or the part number
I would try eBay I got a used one from there but you just put the make model and specs in and it will show you Wich ones fit
@@fareastforge9548 I tried they sent me two that were wrong even though their description said it was for mine
@@jamespowers4126 the only other place I can think of is Amazon
@@fareastforge9548 thank you
@@jamespowers4126 no problem
What is the model of the bike?
1996
Does anybody know where the serial number for the rear diff is on the 1998 big bear 350 4wd? I have ordered the All Balls Racing rear diff seal and bearing kit from Partzilla and it has the wrong bearing. I sent it back and they sent another and it still has the wrong bearing. I talked to someone at All Balls Racing and he says that it is the right bearing. He thinks that the previous owner replaced the rear diff with one from different model. I don't think so because when I bought it, it was only 5-6years old so I don't think it was. I am trying to get in touch with the guy I bought it from but that was 18 years ago. I found on the Yamaha website what the serial number is for the rear diff but not where the serial number is. I can't see, I am going to try to clean it up some more and see if I can find it but any help would be appreciated.
I don't really know where it is but I sold mine so I can't really look but I'd try maybe just looking it up on ebay usually they're good at knowing what years they fit
Hmmm, you forgot to put small gear to left behind flywheel back on. We dont need that anyway 🙂
I just forgot to record it
This the part I needed most...where on shaft does washers go