Why did I wait so long??!

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You know, I bought this 75 three years ago. Had it delivered from Minnesota to me here in the Northwest (pic below is that day 3 years ago almost to the day!).

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I looked it over pretty well, found some questionable mechanical assembly on the engine mounts, etc so I kind of back burnered it and just looked at it as "Shop Art/Decoration" for the last 3 years.

Oh, I knew it ran well and everything, but inside of tank needed some TLC, petcocks needed rebuilt from coagulated fuel, etc.

Well, I figured it was indeed time to get it out before the dark, wet rainy season hits for another Winter.

Tanks all cleaned, petcocks are sorted, fires up and runs great. Mechanicals are all sorted and verified.

However, I've been dabbling with different exhausts because I didn't want to internally rust the original exhaust that was on the bike.....yes, its that minty and nice. They're so hard to come by, this set can just get tagged and set aside on the shelf for the time being.

I installed single wall head pipes with the tipped up ends and put on Commando style slip ons...not quite enough sound (more on that later).

Installed shorty megaphones with internal noise reducer....yeah, right! 😲 Way too damn loud.

Installed some Dunstall look alikes, way too loud too...I suspect all the packings blown out.

Then I remembered I had an OEM set of Triumph Bonnie mufflers in my garage unused. Tried them on, still not the sound I was looking for...weird tinny popping sound too.

Man I sound like a picky bastard dont I? :laughing:

I just want something to sound like my XS-1 without spending almost a grand from Mikes XS for a reproduction set of early exhaust that fits a 75, ok?! :D

Went back to the Commando slip ons and rode the bike literally all day long today!

It was pure bliss. The roll-on note is so seductive you just want to keep rolling into the 3-4k RPM zone over and over again...you guys know the spot Im talking about. This exhaust set up is just like ya'all said it was a long time ago...just right. :thumbsup:

One other thing I noted when bonding with this bike today. Previous owner mentioned he used taller gearing for less vibratory highway riding and boy he wasnt kidding!

I've never ridden an XS650 that didnt vibrate when you're ripping down a back highway at higher speeds....this thing feels like it has an overdrive gear in it. Ive got to pull the side cover and see what countershaft he installed. I can see there's a 33 tooth on the back for sure. (Edit: Upon closer inspection the rear is actually a 32 tooth and the front is an 18 tooth)

It takes some getting used to....about the time you think you're in 5th gear, you realize there's another click up to go and you're actually still in 4th, weird.

Id say the only regret I have about this bike is waiting so damned long to get it out and ride the hell out of it!! I really, really love riding this bike. 🥰:bike:

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@JJames
@gunk
@Its been a long time

OK everyone that wanted to know about the higher gearing on this bike.

I had to pull the left cover off to re-attach the clutch cable after I accidently popped it loose messing with the clutch push screw....ooops.

So I was able to identify that it has an 18 tooth countershaft and verified that I previously misread the rear (it was covered in solidified wax...its actually a 32 tooth.

18/32 gearing...Final Answer.

Will I leave it that way? Not certain yet?

So far, I'm intrigued by it's long legs (read much lower vibes) at higher speeds, on the other hand its not nearly as torquey down low as I am accustomed to so we'll see I suppose?
 
Last edited:
@JJames
@gunk
@Its been a long time

OK everyone that wanted to know about the higher gearing on this bike.

I had to pull the left cover off to re-attach the clutch cable after I accidently popped it loose messing with the clutch push screw....ooops.

So I was able to identify that it has an 18 tooth countershaft and verified that I previously misread the rear (it was covered in solidified wax...its actually a 32 tooth.

18/32 gearing...Final Answer.

Will I leave it that way? Not certain yet?

So far, I'm intrigued by it's long legs (read much lower vibes) at higher speeds, on the other hand its not nearly as torquey down low as I am accustomed to so we'll see I suppose?
I would have to assume your fuel mileage must be quite an improvement. Thanks will order an 18 as I 've got 17 32 at present. :thumbsup:
 
I have found the manufacture usually has it right, and increasing the gear ratio does not get you increased top speed or better fuel economy as the engine is working harder. It will however lower the RPM's, providing a more pleasent ride at highway speeds.
 
I would have to assume your fuel mileage must be quite an improvement. Thanks will order an 18 as I 've got 17 32 at present. :thumbsup:
Time will tell, I havent actually tracked mileage with it yet...too distracted keeping track of noises, mechanicals, building trust, etc...

I just knew Ive never ridden an XS650 without the traditional buzzing vibes at highway speeds, it almost felt like a counterbalanced engine...strange, but it works.
 
I have found the manufacture usually has it right, and increasing the gear ratio does not get you increased top speed or better fuel economy as the engine is working harder. It will however lower the RPM's, providing a more pleasent ride at highway speeds.
I would agree, theres a fine line between having proper torque curves and lugging an engine, particularly when building and selling to markets all over the world with varying geography and highway systems.

The weird thing is, it doesnt seem to be lugging at all...you just dont have to shift out of the basement as rapidly and 5th feels quite literally like an overdrive gear.
 
I have no experience with 75s except that the stock 75s at the Arkansas and Tennessee rallies had a very very good sound from stock pipes. The commando pipes on my red bike are way more subdued.View attachment 377534
Correct, the original 75 pipes, though humungous and with a look only a mother (or maybe proud owner) could love, sound amazing...they really do.

But the guy I bought the bike off of went to the trouble (and great expense Im sure!) of having the original head pipes and mufflers re-chromed before I bought it.

They are in such great condition with no rust bulging or deformity yet I didnt have the heart to run them on the bike. I plan to actually ride this bike a good bit and would rather set those originals aside for preservation purposes...silly I know, but I know how hard they are to find.

So, after all the messing around as I wrote earlier I figured the Commandos sound pretty damn good and really accent the lines of the bike well to boot. :thumbsup:
 
Ok, Im out pulling all the old points plate, advancing unit & rod, coils, etc out of my newfound love...the 75, in anticipation of the new Boyer Bransen thats due here Friday.

Since Im going through the electrical system (which all actually looks to be in very good nick, with the exception of the points), do you folks have a lot of faith in leaving the old original regulator and rectifier in the system?

Im having Jim spin me up a new rotor as a preventative measure, should I swap out the reg /rec as a preventative measure too?

Or should I stick to the old motto, "If it aint broke, dont fix it"?

Thoughts @Jim ?

Oh, also...PS, who's a good source for new Carbon Brushes now days?
 
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