Recent content by MountainManDave

I was drinking water, now it's all over my keyboard, thanks.

Hey guys, I had a bear of a time as the carb setup from this manual and as I posted earlier it's because the CB125S carbs changed significantly for 1980-1982. Anyway, I ended up finding and buying a manual that includes these specifics. If you have a CB125S, the Clymer manual number is M315...

Where in Denver are you?

What I stated above is incorrect, I inverted the two numbers. The carb model is PD24 (PD24A) and the size is 22mm.

I removed the butterfly shaft, the return spring is housed inside the sealed end opposite the choke. I simply flipped the shaft over so the front was facing back, set the slotted end of the butterfly shaft back on the spring, and rotated it forwarded, giving it tension on the spring, and...

I'm finding out that this is good up until 1978, at least for carbs which changed 1980-1982. I learned this from setting float levels, big difference :) and still looking for float height settings for my 1980 CB125S.

I just bought a 1980 CBS125S and am also having carb issues. I have not given up yet but have started considering the possibility of having to get a new one. If I did I would be looking for a used Keihin or as close an OEM replacement they still make today. Would you let me know what happens for...

There is no return spring visible, but there is 'some' tension in the choke, just not enough to close it all the way so I think the spring is internal. I'll have to look around at some other pictures but the return spring is not an available part in any of the diagrams I have seen. I'll probably...

Oh man, look at that rear end! Very cool. I'm a fan of the wagon.

Ah ha, so someone probably left it in the 2nd or 3rd position for a number of years and killed the return spring. It will not close all the way unless I apply pressure to it, and then it returns back to the position in the first picture when pressure is released. This spring housing looks...

Only other thing I noticed was that the carb butterfly sits open a bit by itself, like as much as the first level of choke. Only at 2nd and 3rd levels of choke does it forcibly open any further. I know it's not supposed to be completely closed, and I figured maybe the gap closes when air...

I went parallel, took my time, it came out to about 14-15mm. Put it back together, still won't start. Pulled the air box and tried again for good measure, same result. Checked the plug gap again, it's @ almost 0.029, everywhere read is 0.025-0.028 so maybe a little big but nothing crazy. I'm a...

Yeah, you're right, I think they only used these float setups from maybe 1980-1982, and the shop manual is from 71 or something forward. A bunch of the stuff matches up but maybe they changed the carb for a couple years. I'm going to try setting parallel like you suggested, I know it's not exact...

Still doing research when I have time and the more I look, the less I find. I think the carb is a a Keihin PD22 (PD series? 22mm?). The Keihin website has several series, no PD, and no others that resemble the one I have. Web and forum searches are coming up dry, and the most matches I get on...

Very cool, I envy your garage. What's the station wagon behind the Harley?