junununu

the yamaha dealer said the 4 digit number on the igntion assembly wasn't enough and that i need a 5 character code starting with a letter and 4 digits that come on the silver tab of the oem keys. is the dealer wrong? is it worth trying to go somewhere else or should i look into a locksmith?

OK, that was simple enough, but i forgot its not as easy as swapping out the ignition. Glad I remembered about the key in the gas tank before I took off anywhere. But it seems like the keys from these two are a different fit, even though the main assembly went on perfectly. Do you think its possible to shave down the key holes in the gas tank/seat to force the slightly bigger key in? In the worst case scenario, if I have to order a new key, where will I get they key number? I have the last 4 digits but not they type and do not have the original keys.

Hey folks, I've recently lost my keys to my XS400 77, and ended up purchasing a new main assembly w/ extra keys (hooray!) But since I've lost my keys I haven't taken a look at the thing to figure out where to start. I notice that there are two bolts, what is the safest and best way to remove the current main assembly and secure this other one in there? Its nice that the wiring is snap-on, but I can't imagine 'squeezing' any tools into the main assembly area.

So I could attach something like : and leave the one i have on there as is?

the ones i'm finding on ebay are around 200 or so, do i need the whole assembly, or can i just find something that would maybe fit where my old mirror used to be now that i'm using bar end mirrors?

I recently swapped out my stock bars for a pair of BikeMaster clubman cafe style bars, but noticed that the brake fluid reservoir is in a tilt. I'm concerned about fluid being able to flow through, because the opening is now the highest point on the reservoir, so all the fluid pools down by the opposite corner of the opening. Is the reservoir pressure activated and does fluid still run through, or do I need to find an aftermarket fluid reservoir?

I wanted to ask, what kind of tires are those? and are those stock rims?

So I need a new set of taillights, and considering integrating the taillight to the seat assembly. I'm a fan of LEDs, but how will the electrical system play with such type of lighting? For reference, I ride a XS400D And also an aftermarket tach, since the one I have is probably not so accurate (very sticky)

Got that. All is lube and appear to be working. I got a great lesson in contact points when i didn't understand what 'fully open meant' and adjusted the plate when the engine wasn't turned over fully. I got mediocre power with full choke but realized that something was definitely wrong. Adjusted points properly, and will start but still that damned bird squeal. I can only think of the cam or the intake manifold at this point. looks like the right side manifold was repaired, and the left side has a fairly large crack that I'm not sure runs all the way through. I will order new manifolds but in the meantime try and seal it with rubber cement and see if it goes away...

From the Poster of the Video: I figured out the squeeking noise. It was a very very slight leak around the choke plunger body. Big enough to cause a noise, but not big enough to cause running problems. Tightened the screws a bit and noise was gone. of course its not for the same xs400 model, but could this be a similar problem?

Upon removing the contacts plate and the ATU, there appears to be a small oil leak in the oil seal. I'm guessing the points and the end of the camshaft that rotates under it should be dry right? Could the leak in the oil seal cause smoke to come out of it during a rough start?

Update: I get home and one of the screws that holds the points cover is stripped, whoopee. On another note, after leaving it be for 48 hours, and letting the oil drain out overnight, and a fresh oil filter and new oil later, the sound disappeared, only for a few seconds. and then a few seconds later, the sound continued the oil light came on, and poof the oil filter had somehow come loose, and the oil leaked out. I resealed the oil filter, put in new oil, started her up, and got the same squeaking sound, with no oil problems this time around. I'm almost certain that the sound is coming from behind the points cover now, but wondering if the few seconds of normal operation after draining the oil might be a symptom. Also: how dangerous would it be to ride around with the sound assuming it doesn't get any worse and it really was the advance mechanism causing the noise? I have limited time before and after work to get to places and no car.

Sorry, just wanted to provide a clearer video with a better sound for it. I'll try this when I get home and report back. thanks!

i actually got these pictures from an xs650 site, but i know the points cover looks very similar to that. the governing rod is probably a reference to the electrical ignition modification they were doing. So in the advance mech in the second picture, what should i be lubing?

sounds JUST like that.