"WHAT DID YOU DO TO YOUR MOTORCYCLE TODAY"

[oldironnow]

[oldironnow]

I was surprised how clean it looked inside.




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[oldironnow]

Also, Monday, attended to the Buell.
A random reluctant start with compression stroke kickback and sometimes enough draw on the battery to reset the trip meters (deep breath) had become an odd shutdown and several cyclings of the dash (ecm) self-check process.

Thinking it was the old battery, i got ready to pull it.
But the positive cable was slightly loose on the post.
There were two solid rings of carbon that needed cleaning.




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[oldironnow]

[motogrady]

Didn’t lose a pushpin.  
The effin clutch rod was sticking out of the case.
Thought it was a dowel to line up the cover. 😬

[motogrady]

oldironnow wrote

You can see it has been moving.

[hacksaw]

red ground?????


oh that's the battery? weird side post?

[motogrady]

On the Gs450.
Clutch back together.

Electric’s, pretty much all day and it’s still messing with me. 😕

[oldironnow]

hacksaw wrote

red ground?????


oh that's the battery? weird side post?

On a Buell CityX, the battery is mounted back down between the tail section rails.

I think it's a generic Sportster battery. There's some kind of memory that the HD dealer said they didn't have a Buell battery, but the number matched up with something on their shelf.

[hacksaw]

Must be. It looks like the post is off to the side of the battery . I guess it’s not .
Sportster and fxe batteries were the same for decades.

[oldironnow]

IMG_2691.mov

[oldironnow]

IMG_2691.mov

[Fatfatboy]

https://youtu.be/0VkrUG3OrPc?si=-GYbw9n8FnfRbeCS

[hacksaw]

Terri Garr certainly was .

[oldironnow]

Fatfatboy wrote

https://youtu.be/0VkrUG3OrPc?si=-GYbw9n8FnfRbeCS

HA HAAA HAA ! Yes !

[oldironnow]

But, as it was before it was put away and ignored for a decade, it’s still a bastard to start. Cranks and cranks and cranks….
I had to hand-choke the open intakes to get it to fire a week ago. Which, is untenable.

So I slept on the problem, thinking about it, mulling it over.
The carbs are too big, by design choice.
The exhaust is unmuffled short-pipes, also by design choice, as it was made to reach an equivalence to 125GP bikes - all top-end performance.

The combustion chamber is probably not getting a good charge at idle speed (no back pressure and not enough signal in the venturi), and the guys who built this bike probably had a roller starter, so it wasn’t an issue.

Grafting some butterflies over the velocity stacks could work, but then I thought about covering up some of the Supertrapp discs with shim stock. And thinking about the question of attaching shims begat the answer of hose clamps…. And the realization that the hose clamp is the answer.

So now it fires and idles and revs, but the upper rev range hasn't been explored. Maybe if I get out this DMV office, I can get home and whip the throttle while the neighbors are at work… So, I’ll have to see. Especially since I’m remembering past actions of taking out discs, and that leading to a strangled top-end.

What I need is an EXUP valve, or a spring-loaded obstruction in the pipes that would yield under pressure. I wonder if a stainless reed valve would work.




.

[oldironnow]

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[hacksaw]

Might need more discs. I may have a couple somewhere
I stumble across them I will send them to you

[oldironnow]

hacksaw wrote

Might need more discs. I may have a couple somewhere
I stumble across them I will send them to you

Thank you for the thought !
But don’t look too hard - there are about six discs under the hose clamp, and there two pipes, each pipe serving just 125cc. I feel like I have plenty. Will investigate.

[Fatfatboy]

Added some cheap eBay bags to carry my coffee thermos and lunch to work.



Z lil bagger.