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Wanted - ISO bs38 hardware
- Thread starter Halftwist
- Start date
74 75 didn't have those partz, use two throttle cables.
Shoot my bad I’ll try to get it the right place
Oh boy than I’m really shootin in the dark. These only have one throttle cable and one choke lever. I’ll post a pick of them tomorrow
Yes pics, specially the intake,
FWIW I should have the X brace n the angle iron.
FWIW I should have the X brace n the angle iron.
Here are pics of the carbs
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Yeah I'm stumped, the cross over type choke you have is correct for a 74-75 set, But the brace and single pull throttle throttle shaft setup didn't come til 76 which have two chokes connected by a choke rod. Are they from "some other bike"? Franken carbs built from parts? Dunno...
@5twins ??
74-75
76-77
Check the brass see which year (if) it matches?
@5twins ??
74-75
76-77
Check the brass see which year (if) it matches?
That’s what was throwing me off too. Almost like there are too many different things that imply different years.
Any idea on the brass I’m missing from the bottom side of the carb that’s covered by the floats? What it is?
Any idea on the brass I’m missing from the bottom side of the carb that’s covered by the floats? What it is?
That's part of the mystery, 74-75 carbs don't have that choke feed pipe on the RH carb, they get the choke mixture through a crossover tube from the LH carb.
I’m sorry I’ve got them swapped right for left in that pic see the choke lever? So that brass post that sticks dow into the bowl supplies the choke? Cus these carbs have a crossover pipe supplying the right side choke from the left one. Should I post a pic with All the hoses on?
Franken-carbs for sure. They appear to be '74-'75 carbs that someone has swapped the longer, linkage type butterfly shafts into. You can't install the bottom angle across the carbs because there is no casting and no screw holes for it .....
The best you could do is install the top butterfly shaped plate and hope it is enough to keep the carbs aligned and hold the sync adjustment.
The best you could do is install the top butterfly shaped plate and hope it is enough to keep the carbs aligned and hold the sync adjustment.
It didn’t look like there was anywhere to bolt the bottom angle iron to. You’ve now dashed my hopes forever. I don’t really like the idea of just the top brace, all the vibration seems you’d run the risk of cracking the casting of the carbs
No problem, I saw they were crossed.
So that brass post that sticks down into the bowl supplies the choke?
Yes that's' why it's only on the LH carb.
Have these carbs ever run?
Got ya, makes sense. The singe throttle is what’s throwing it off. Because the carbs have to be synced together and that’s dang near impossible without them being mounted solid to each other.
Yes I’ve run them about 75 easy miles on new motor but they’ve never been quite “right”.
So what I really need is to get throttle on the right carb set back up for a cable somehow and switch to 1 into 2 cable?
Not exactly. Early bikes had two separate throttle cables and a twist grip that took two cables. So, you'd need to find a '75 or earlier throttle assembly and the original, correct butterfly shaft for the right carb. It would have the threaded outside end to bolt on a cable arm just like the left carb has .....
finding a set of complete carbs of either type would be the easy (better?) path.The road to hell is paved with "almost right" MC partz.
