Well, OK.....maybe a couple more posts.
Today I went out in the garage to balance my carburetors with my home built manometer. I had a brand new package of Motion Pro vacuum port adapters ready to go.
So , first I started up the bike and got it warmed up, shut it off and installed the vacuum adapters and hooked up the hoses from my manometers and started the bike back up. You know, it kinda surprised me, when I started it up and almost immediately it started pulling all the fluid in the manometer up and almost out of the right side tube, before I could get it shut off.
When I assembled the carbs, I was painfully careful to set the butterfly position
exactly the same on both carbs. But for whatever reason the right cylinder pulls harder than the left. All it took was a very slight adjustment to bring them back down to level. That manometer is extremely sensitive and I drove myself crazy trying to get both sides to
stay exactly level. It kept fluctuating , but as the bike got hotter it became more stable. Here’s a short video of my bike running with the manometer on it. I had a cooling fan running, so you can hear that some on the video.
After that , I pulled the manometer off and rolled my bike out to the street for a little test ride. I started it up and
It Ran Like Crap!!! WTH?
I’m looking down at my bike and it hits me,
I’ve still got the vacuum ports installed and no caps on them.
I was sucking air like crazy. I took care of that and off I went! The bike is running beautifully! I almost forgot how nice this bike is. It’s smooth, quiet, pulls strong, idles perfect. It’s so drama free, it almost feels like a modern bike.
So as I’m riding back to the house, I’m thinking again how different the riding experience is from my XS2, and I thought, Hmmm....now is the perfect opportunity to hop off of one and onto the other and get that immediate comparison. So that’s what I did.
Hopping on my XS2, right after riding my 77D only reinforces my impressions.
The riding position,
On the 77D, you sit up high, you definitely have the sensation of being on top of the bike, the handlebars are also lower.
On the XS2, the seat is lower and the handlebars are higher, giving the impression that you are sitting down in the bike. It is also a very narrow bike, giving it a feeling of lightness and flickability.
The engine,
The 77D, feels smooth, builds rpms quickly and ( my seat of the pants tells me ) it accelerates faster than my XS2, but it does so deceptively because it is smooth, and quiet and doesn’t make a lot of fuss.
The XS2 on the other hand
FEELS FASTER because the whole package just feels rowdier. More vibes, more sound, more commotion when you’re on the gas. I like the sounds and the way the engine sort of throbs and it’s a blast to drive, because it feels and sounds kinda like a hot rod. But it’s more perception than reality.
They both have their place for me. If I wanted to ride any distance, I’d take the ‘77, it’s just a great bike that’ll get you there without beating you up. But if I want to tear around the neighborhood just for fun, I’m taking the XS2!
It’s good to be King! Heavy is the head that wears the crown!
A couple of side notes, today the mailman brought me 4’ of
black spark plug wire, so
goodbye yellow wires!
I still have some new spark plugs coming, I might just wait and throw them in at the same time.
Also I’ve retired my white gas tank. It’s now hanging in my motorcycle hall of fame above my bench.
il bianco è morto, lunga vita al nero
To be continued?............
Maybe, Bob