did you put red or blue Loctite on the cam caps? I didn't put any on my exhaust cam cap. I also torqued it to about 80 - 85 inch pounds. Do you think that's good? sometimes it keeps me up at night worrying that one day im going to ride it and it will rattle off and mess my engine up.
I used blue loctite on them, 80 to 85 inch lbs is enough, just don’t over torque them because that is a mess if it’s own (the cam can lock up). The right torque with no loctite will hold, but loctite will give you some extra security.
@@brodyfontenot Thanks for the reply. Needed the extra opinion on it. It had me worried that I didnt tighten it enough but i didnt want to overtighten it like you said because i heard about cams locking up or destoying headed because of that.
@@brodyfontenot Im also having a little trouble with my bike. Same year as yours. 2002 yz426f. It wont kickstart. I dont know what to do. The bike will run if pulled by a truck and dumped into gear but it wont kick start for some reason. It has plenty of compression, a completely rebuilt carb, and the engine is now in time and the valve clearances seem to be in spec. For exhaust atleast. I didnt have the right feeler gauges to check the intake but i had 0.15mm which wouldnt fit so i figured they were in spec. I found that the ignition coil resistance was out of spec so im buying a brand new OEM one. I really hope that will fix it because this bike is being a pain. Just thought id ask you incase you ever had something like this happen. I searched forums everywhere but couldnt find answers to my current problem.
@@JacksonHoff-u6q Make sure you are doing the starting technique right, my bike is different because it has a different cam with decompression built in. But if you aren’t doing it right it is very hard to start and probably won’t start. There are videos of it online
Hello, I need help, my Yamaha yz 400f leaks antifreeze out of the exhaust, I changed the head gaskets and it keeps leaking when I try to start it, how can I fix the
The only thing I could think of is something wrong with your cylinder or head, like a crack or chip in the surface that makes contact with the head gasket. There is no other places that coolant could get into the combustion chamber.
Probably around $500 anymore, but it depends on where you find it (currently $485 on rocky mountain atv/mc, and its way harder to find a cylinder head new and it will be more expensive if you do find one) _(Also if I said a couple thousand for a cylinder in the video, I was wrong)_
Just picked up a 2001 426f yesterday for 1000$! Only 559 miles! Glad I found your channel and I for see and rebuild in the future
Just got a 2000 for $1000 too. Couldnt believe it! So excited to get this thing out ripping
Thanks for the great guide through the rebuild. Thanks, keep up the good work, and get mine back together. Thanks
did you put red or blue Loctite on the cam caps? I didn't put any on my exhaust cam cap. I also torqued it to about 80 - 85 inch pounds. Do you think that's good? sometimes it keeps me up at night worrying that one day im going to ride it and it will rattle off and mess my engine up.
I used blue loctite on them, 80 to 85 inch lbs is enough, just don’t over torque them because that is a mess if it’s own (the cam can lock up). The right torque with no loctite will hold, but loctite will give you some extra security.
@@brodyfontenot Thanks for the reply. Needed the extra opinion on it. It had me worried that I didnt tighten it enough but i didnt want to overtighten it like you said because i heard about cams locking up or destoying headed because of that.
@@brodyfontenot Im also having a little trouble with my bike. Same year as yours. 2002 yz426f. It wont kickstart. I dont know what to do. The bike will run if pulled by a truck and dumped into gear but it wont kick start for some reason. It has plenty of compression, a completely rebuilt carb, and the engine is now in time and the valve clearances seem to be in spec. For exhaust atleast. I didnt have the right feeler gauges to check the intake but i had 0.15mm which wouldnt fit so i figured they were in spec. I found that the ignition coil resistance was out of spec so im buying a brand new OEM one. I really hope that will fix it because this bike is being a pain. Just thought id ask you incase you ever had something like this happen. I searched forums everywhere but couldnt find answers to my current problem.
@@JacksonHoff-u6q Make sure you are doing the starting technique right, my bike is different because it has a different cam with decompression built in. But if you aren’t doing it right it is very hard to start and probably won’t start. There are videos of it online
@@brodyfontenot its not that. i think its something else thats wrong with it i just cant figure it out.
Best cross motor yz426f, yz400f
Hello, I need help, my Yamaha yz 400f leaks antifreeze out of the exhaust, I changed the head gaskets and it keeps leaking when I try to start it, how can I fix the
The only thing I could think of is something wrong with your cylinder or head, like a crack or chip in the surface that makes contact with the head gasket. There is no other places that coolant could get into the combustion chamber.
@@brodyfontenot Thanks, I'll check it out.
i thought you couldnt hone nikasil?
As long as you just go lightly you won't go through it, and it shouldn't chip,
Man i could have saved $380 i bought a new one lol@@brodyfontenot
Couple thousand? Is that what a oem cylinder cost
Probably around $500 anymore, but it depends on where you find it (currently $485 on rocky mountain atv/mc, and its way harder to find a cylinder head new and it will be more expensive if you do find one) _(Also if I said a couple thousand for a cylinder in the video, I was wrong)_
@@brodyfontenot you said it had a couple thousand hours on the cylinder