warkilt

Hey i have been trying to remove the timing chain from my xs400 and i can't seem to get it out in my manual it says to use a spanner to hold the rotor so the chain doesnt move but now i got my wrench stuck on the bolt for the chain guide anyone have a idea how i may be able to remove the chain? Thanks

thanks for the reply's i will do some checking tomorrow to make sure it will work.

Thanks a lot i finally got it out, I had one other question though, Could use one of those AGM batteries on a 79 xs 400 it says it can be used on the 1980 so i figure it could but i just wanted to check before i spent the money.

Hey again I have been trying to get the motor out of the frame, i follow the service manual on what needed to come off before i removed it. Now i cant seem to pull it out is there any chance that there may be a hidden bolt or two that could be still holding the motor on?

thanks for the replies, I'm having a little trouble getting the motor out off the frame but i'm hoping that i will get started on it this weekend. I bought a new camera so hopefully i can figure it out so that i can post pictures of my progress. Thanks Again!

Thanks Guys i ended up just going up to the Yamaha dealer and ordering some.

Hey I am trying to figure out where i can buy larger jets for my carbs so that i can run the air pod filters. I have been doing alot of research but i cant seem to find anyway that sells what i need, If anyone has some ideas please tell. Thanks

Ok Thanks i was able to find a new gasket set so i am ready to go for the rebuild. Thanks Again

hey guys, I am in the process of taking a 79 xs400and turning it into a bobber. First i took care of my carb problem but when i tested the compression it was extremely low so im wondering if anyone knows where i can find the torque needs to be for the various motor parts. I am also wondering if anyone knows where i might a quire a gasket set for it. Thanks Warkilt

OH ok thanks

Hey i was taking my xs400 engine apart and found tons of carbon buildup i was wondering if anyone knew what i could use to get rid of it without having to get it done with a bead blaster. Thanks

Ok That sounds like it a better shot then trying to break it out. Thanks

I am rebuilding my bs34 carbs and i am trying to get the pilot jet and my manual says to use a tapered rod to remove it but i don't understand what they mean by doing that. I would think if you push to hard then you would just push it in harder. If anyone has some suggestions that would be great.

Ok Sweet thanks Again!

I don't mind having to fabricate something i just wanted to know if the electrical would work on it. Thanks Warkilt

I was looking at my friendly neighbor hood junk yard and found a left hand switch control for a 82 xs 400 j seca that has a choke button on it. My main question is if i could possibility make that work on my 79 xs400f. if anyone has any idea if it would work before i buy it please give me your input. Thanks! Warkilt

Ah I guess because it starts to rumble but i am kind of new to this so maybe it isn't about to start at all.

Ah it sounds like probably around 3 or 4 rpm when it is about to start. I also was going to just use the kick start but it didn't even remotely turn over when i tired it but maybe i am not kicking fast enough. also i did find a few shorts in the wiring harness so maybe when i fix those the problem will be solved thanks again Connor

Ah i am not sure but i think it is the main electrical fuse that is blowing. Thanks Connor

Hey yeah it it does turn over but just as it is about to start the fuse blows. Thanks Connor

Hey I just bought a 79 xs 400, the person I bought it from said it needed the carbs clean so I did that. When I tried to start it the fuses got really hot and then burned out. I figured that they might be bad so I replaced them tried to start it again and then they start to smoke and burned out. Does anyone know what might be the problem? A friend told me to pull the harness and check for corrosion. If anyone could help it would be greatly appreciated Thanks

Thanks for the tip I was worried that i just ruined my first battery i have had to actually fill. Thanks Again

Hi, i just purchased a yamaha xs 400 and i went to sears and got a battery. I began to fill it then i seemed to overfill it so acid began to spill all over. Is there anyway to still used the battery or do i have to go buy a new one Thank!