carb

Hey guys, Finished my build and it's all about the tweaking now. One of the things that is kinda bugging me is that when the bike has stood for a bit (1 night) it usually takes 3 goes on the electric start to get it started. Once started she's fine. The carbs have been cleaned, new main jets...

Hey guys, working on my 1981 XS650 Special, after 30 years I got her to fire but having some float problems, trying to take the floats off, is there a trick in getting them off, pins seem tight.

Title says it all. Previous owner of my 77 xs installed VM34s with pods. Right now, it is running great and I am not looking to change the carbs BUT I'd really like the side covers on as they look great. I attached a photo with the pod removed and you can see that even if I cut the side cover...

Having a hard time distinguishing between hesitation and flat spot. Also between stumble, stutter and bog. Are they interchangable or slightly diffrent? I've been upping main jets to richen what I think is a flat spot near upper midrange. Pretty much engine just roars at a higher pitch with...

Is a 150 main causing my midrange break-up? I am running a bs38 on my 1978 xs650. I have pod filters and open exhaust. From every post I found I should run a 150 main and 32.5 pilots. I've done all the tuning from the tensioner, valves, timing etc... Synced them with a manometer, adjusted...

I picked up a used set of carbs (in amazing condition, for a great price). They have the "1" style needle jet, do I need the #2 style needle jet. Any help would be great. Mostly worked with Dellorto PHBGs for previous projects.

Hey all, I acquired an 82 Special to build into a custom. Old owner had it sitting for 2 summers unused but said it ran great before that. Carbs were gummed up when I got it; wouldn't start. I put new mufflers on it, Emgo turn out style, very free flowing compare to original; almost...

What size aftermarket airfilter do I need to buy for a 1981 xs650 special? I can't seem to figure out if it is 52mm or 54mm. Thanks

Ok, so im going to try fixing my jetting. After a few months of 30mpg i think its time. Heres what i got, 83 Sk Bs34s 142.5 main 127.5 air Wheres the pilot jet? Under that rubber plug? I had the carbs completely apart today and didnt bother looking in there... 3 turns out on air mix screws...

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...

So I am so close to being done with this build. I got the bad boy fired up on Friday, and started trying to do the little adjustments on timing and carbs to get them all behaving nicely. Timing is correct, but I am getting a lot of backfiring. I am thinking carbs need to be richened? I am...

so i took the baffles out of my exhaust and in turn the bike was running a little lean. so i put 137.5 jets in and back the mixture screw out to 2 3/4 to smooth the idle and get rid of the popping on decel. well the left cylinder is barely hitting at idle. the right side is loud and burning...

So after running up many jet sizes and then going back down, I've got my bike running pretty well. I've got the mixture screws like 3.25 turns out (where the bike always seems to like them despite the combination of jets I've tried) and I've been listening for backfire popping when decelerating...

I've read a lot of posts and still not sure where I need to go. I have a '73 TX650 all original except for K & N Pods and a shorty open muffler. I live at sea level in Southern California. The Bike starts and runs for a while, but pops pretty bad then dies. If you give it any throttle it...

So, I've searched the forums and read the manuals, but I can't seem to figure out where the fuel mixture screw(s) would be? My bike is running just a little lean and I'd like to richen it up a bit. In order to do this do you have to take off the bowls or is there a mixture screw somewhere...

Bike giving me more grief. to recap. got the bike running ok but a bit lumpy when the throttle was off. then i ran out of fuel and couldnt get it started. eventually i unscrewed the drain bolt in bottom of carb and the fuel had lots of black specs and other crap in it so i took off the float...