bs38

Hi All, So I've been reading this site, the carb guide and watching as many videos as I can about carbs and the time has come to take my XS2's BS38's apart. I should point out that I have never taken apart a carb before... When I bought the bike it ran but when the petcocks were turned on it...

Hi all, A little advice please. Should i replace this float needle or not?

1978 XS650 with pod filters, straight pipes and bs38 Mikuni's. Just replaced pilot jets from stock 27.5 to 30, main jets from 135 to 140, upped the clip on the jet needle to the 2nd slot from the top, have the mixture screw out 2.25-2.5 turns and had the entire carb sonic bath cleaned. Still...

Now that I've got my first chop wired and fired I'm get as much info on dialing in the carbs. It's a '78 xs650 with bs38's. Pod filters with straight pipes. Have new mains and pilots of larger sizes coming but had a question about the air barbs that would have been used or stock vacuum...

Just to make sure I'm not losing my mind, I wanted to get a second opinion. I almost done with my first ever build so I'm a green horn. I have a '78 xs650 with bs38 Mikuni Carbs. I purchased a new throttle assembly from TC Bros. with the vintage grips. Bars are not taller so the stock...

Good morning friends, I've been holding off on tearing into my carbs on the suggestions I've read and heard about leaving well enough alone until it isn't. Also, I've been dialing in the prerequisite stuff such timing, fuel delivery, etc. 1) I was all ready to sync them, but I've found the...

I've been having a great time over the last two weeks as I become further acquainted with my 77D, mostly stock, Stella. After the first basic safety checks and oil change, etc. I put her quickly into her role as my daily ride. Most days are 5-10mi, but the last week has given me a few longer...

Looking to but two bs38 floats. I need them to be in good condition. No holes, dents, etc..

I'm wondering if any of y'all know if anybody out there makes stainless steel or aluminum billet carburetor manifolds/boots that fit Mikuni BS38 carbs? I know Counter Balance Cycles makes stainless steel ones for Mikuni's VM34 and TC Bros has an aluminum set for them as well, but I can't find...

I recently rebuilt my engine and was having issues with one of the cylinders running rich at idle. I went through everything and finally found what the problem was. The float bowl. I swapped carbs from left to right and the rich condition followed the carb. I then swapped float bowls and the...

[/URL][/IMG][/URL][/IMG][/URL][/IMG]Reassembling BS38 carbs, if I snug down the nut at end of shaft with the throttle cable, the assembling binds up. If I leave it too lose (with locktite) will it leak air? Am I missing something (see attached) Also the idle screw isn't centered on the...

Alright, I'm no carb expert and I should have documented better. I took these bs34's apart from a 1982 to clean and too much time passed before reassembly. The pilot & main seem to be stock, and I believe I have installed them back in the right place, but I can't figure out what jet this middle...

I've been having on and off carb issues. I have pod filters and non-baffled straight pipe exhaust. Recently installed Hugh's hand built PMA. I have Bs38s and on my 1978. Main jet = 145. Pilot = 45, I changed both. Mixture screw is at 3 turns. At first, my bike would not idol correctly, it would...

Tax time is here and I was thinking about looking into some different carbs for the bike. Right now I have the stock Bs38's and they've been fine, no real complaints, I'm running Uni's as well. The only I will say is that anytime I crack the throttle open from idle, I get a breathy kind of gasp...

Hey guys, First post here... just recently picked up my (first) bike early December. Was marketed as an '81 XS650 Special II, but I pulled the carbs to clean them and noticed they are BS38s. The bike is in storage so I haven't pulled the engine numbers yet to get more specifics, but that's...

Hi everyone. *Short time lurker, first time poster. As well as replacing the diaphragms, I'm trying to figure out why the left are right carb aren't identical when I open up the float bowl. It's a '72, xs2, bs38 CV carbs, (image attached?) One has a main nozzle, the other has no main...

I can get an idle on my solex carbs although when I take the filters off and raise the right carb throttle by hand the diaphram lifts as normal and the rpms go up .. When I do the same to the left (main with carb choke)carb the diaphram does not lift and makes a sputtering noise like it's not...

Im in desperate need of a right carb bs38 throttle shaft 74-75 the dual cable ones. Can anyone help me out ?

http://www.ebay.com/itm/XS650-Mikuni-BS38-Carburetor-tail-lights-Bobber-Custom-/300587584003?pt=Motorcycles_Parts_Accessories&vxp=mtr&hash=item45fc6a8a03#ht_3423wt_1163 Im sure SOMEBODY likes these. not me though...

Made myself a nice stainless steel carb brace the other day and decided to upgrade the hardware aswell. Brass washers and stainless polished caps. pretty easy and helped clean them up a bit. top caps and bowls didn't take to the half ass polish job I did to well. But you can tell a difference...