1974 XS/TX650 rebuild

**asterix** · May 18, 2021, 08:11 AM

I do care! I was replying to post #129 asking «if anybody was knowing what time it was?» The question seemed to me to be out of order in the discussion so I replyed « Who care's » as I was more interested in the progression of this rebuilt than the time it was that's all.

**Rikk** · May 18, 2021, 08:19 AM

Originally Posted by asterix

I do care! I was replying to post #129 asking «if anybody was knowing what time it was?» The question seemed to me to be out of order in the discussion so I replyed « Who care's » as I was more interested in the progression of this rebuilt than the time it was that's all.

Oops, my mistake and I apologize. There seems to be a rash of folks posting mean spirited stuff and I'm really into this thread, so I, incorrectly mind you, took offense when I thought you meant to give offense. Sorry man.

**th62** · May 17, 2021, 09:36 PM

Well, another day spent on the points cam, must have made about a hundred of these bloody things before I figured out how to do it" cut the keyway first, then mark where the ramps are then file, check, file, check, ad nauseum! Finally got it right, close enough to say spot on, statically at least. I also added a felt oiler bracket to the backing plate and moved the condenser up near the coil. Looks a lot neater now, and quicker to set the points with only one set. I don't like cutting key ways on the lathe, so I used a 2mm end mill on the mil. The key is a 2.5mm round pin suck in the shaft crossways, so only had to cut the keyway down around 6mm.

**Rikk** · May 18, 2021, 06:03 AM

Originally Posted by th62

Well, another day spent on the points cam, must have made about a hundred of these bloody things before I figured out how to do it" cut the keyway first, then mark where the ramps are then file, check, file, check, ad nauseum! Finally got it right, close enough to say spot on, statically at least. I also added a felt oiler bracket to the backing plate and moved the condenser up near the coil. Looks a lot neater now, and quicker to set the points with only one set. I don't like cutting key ways on the lathe, so I used a 2mm end mill on the mil. The key is a 2.5mm round pin suck in the shaft crossways, so only had to cut the keyway down around 6mm.

Very nice work! I don't mind points either, but I'm curious, did you look into something like the Petronix electronic ignition type or just wanted the challenge?

**th62** · May 21, 2021, 01:38 AM

Nope, haven't looked into any of the commercially available electronic ignitions. Haven't looked into any of the commercially available anything actually, too damn expensive and this is supposed to be a budget build. Although, if I looked at how much I've spent so far, it's hardly 'budget'! I have looked at building a hall effect system, I have all the electronic parts, just haven't got around to building one yet, one day. Plus, I tend to like mechanical things in case you haven't noticed.

**Rikk** · May 24, 2021, 06:01 AM

Originally Posted by th62

Nope, haven't looked into any of the commercially available electronic ignitions. Haven't looked into any of the commercially available anything actually, too damn expensive and this is supposed to be a budget build. Although, if I looked at how much I've spent so far, it's hardly 'budget'! I have looked at building a hall effect system, I have all the electronic parts, just haven't got around to building one yet, one day. Plus, I tend to like mechanical things in case you haven't noticed.

I don't blame you one bit. No sense replacing what works or what you can make for much less money.

Those wheels look great, You are the only one that will notice anything wrong with them. That bike has way to may other cool things going for one to be distracted by minor pitting in the wheels.

**Rikk** · May 27, 2021, 06:02 AM

Originally Posted by th62

Ok, that's the end of this thread as I can't post anymore pics. Admin have been less than helpful so I'l cease posting here. If you are so inclined you can continue following the build at A long, long project. | Page 11 | Yamaha XS650 Forum....

Well that stinks...

By the way, this is a cut/paste of the post I received in an email notification, but was not shown here when I clicked on the link.

**IntheGroove** · May 18, 2021, 08:16 AM

I tried to find the timing in degrees for that engine but found nothing...

**th62** · May 21, 2021, 01:41 AM

Degree wheel is about the only way to find that out. I did put a degree wheel on it a while back but forgotten the numbers.

**th62** · May 20, 2021, 09:35 PM

Did some more buffing on the front rim, came up reasonably well, I ground the edge down and managed to get rid of the lever marks, but as you can see in pic four the pitting is very bad and very deep, no way of getting rid of that. Pic five is the rear rim. I still have to grind down the edge of the rim to remove the lever marks. Very badly pitted and the area between the nipple lands is very uneven. I'll attack that next but not sure if I'll use them, whilst they look nice and shiny , get up to within a few inches of them and the pitting doesn't look nice. More procrastination required I think.