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Thanks guys, could I see pictures of the units for sale? Are they in good shape?

I do

Looking for mechanical advance assembly, let me know if you have one for sale! Thanks

Thanks Gary, I will pull the needles and needle jets for a close inspection, I don't believe they are worn, I had a pretty good look at them last time they were out and didn't notice anything unusual. Ill take a boo around so see if I can locate any of these other options and give them a try :)

Ok, its been a bit since I have updated my progress on this, been on some family adventures and haven't had much time with the bike. So I've been playing around quite a bit over the last few days and after some miles with various tunings I am getting a feel for whats working and whats not with...

Been playing around to with my fuel ratio at idle. Currently set at 4% CO which translates to about 13:1 air to fuel. This would be still slightly on the rich side for what's considered normal for a air cooled engine, in the automotive world anyway. strangely when I set idle mixture using the...

Bit of tuning with the gas analyzer and balanced my carbs

Pretty much complete, racking up the miles now.

Super satisfied customer here, Weston builds first rate products! Support this guy

Sorry for the lack of updates lately, school is out for summer and have been running around with the family on a couple trips. Few little tweaks since last post, first ones kinda interesting. I ran my bike down to a local bike show some weeks ago and randomly a fella came up to me and...

I'll look into it tomorrow, there are a few shops catering to vintage bikes around here as well as, hopefully someone can sort me

Cheers thanks 5twins. I suspect the jet went missing just today when I disposed of the fluid in the bowl, don't believe I ran it like such... I think anyway! Just went for a rip with 135 mains and needle at position 2 and it still breaks up hard in the midrange. That was my leanest mains so...

Make that 2 beers, for celebration! Found the needle jet laying in the dirt outside my shop.... Phew!!

Well crapola! Houston we have a problem. Just removed my float bowl on the other side and discovered.... That there is no needle jet in there :banghead: Looks like I'm adding more to the order :( So now I have a bigger problem, your saying the z-6 or no longer available and now I need one...

5twins, you are a legend! Confirmed the needle jets are z-6 which should be my stock size. Looks like I'm ordered some new jets then. I hear you about mikes parts, case in point my wonderful advance rod:) So I should probably grab all sizes from 127.5 to 135 or so, rather from 135 and up...

Also, these are the correct main jets yes? Ordered here http://www.mikesxs.net/parts/yamaha-xs650-135-0-main-jet-pr-sm-round-type-oem-256-14944-27-a0 Just covering my bases making sure I'm not out to lunch with wrong parts

Xsleo, sorry type-o there, timing mark flashed at fire... Not tdc Carbs open, I do have the 4n8 needles. 5twins, so are you saying only 1-3 sizes up on mains from my original 127.5 that my bike should have had? And needle jet? This is different than my needle? I don't even know what that is...

Ok, Looks like I may need a little more help with this. Think I need to take a step back and start at the beginning again. I am posting a picture of my carbs to help with identification. They are as far as I know bs38s, and they are for sure the original carbs from this 74 canadian tx650. I did...

Yeah, Im kinda embarrassed I didnt notice it before. I even considered that maybe the pamco rotor wasn't seated all the way but that didn't seem to be the case. Whats important i guess is that new shaft from mikes is on my desk and not in my engine :) I also found some threads discussing...

Didnt get a chance to run it after my work tonight but I will report that I measured the rod end play with a dial indicator and it was 3mm. I removed the advance shaft and reinstalled the oem shaft and remeasured, now sits at .5mm, thankfully i will not have to mess around with shims. Tomorrow...