carb

Symptoms: bike stalls at low speeds takes forever to start after stalling once accelerating, bike thrashes wildly, jumping between 0-6000 rpms, jerking like crazy (scary) even at steady throttle, bike will start thrashing Background: This is a 1977 XS400 with about 12,000 miles on it. I've...

So I opened up my Carbs today, and surprisingly everything was really clean! (Good for me). So I was trying to put back the carbs together and I ran into a problem at the end where the diaphragm goes in. When I put the whole set up in the diaphragm doesnt go all the way in, so if I try to make...

First off, I have a 1980 XS400G (That's what the PO told the other PO who relayed that to me when I bought the bike at least) but the VIN is 3F8, which the forum says is a XS400G Special 2 3F8 12/79 1980. The PO posted on here for a bit (Hey Kyle), and it seemed as though there were some...

So after cleaning and rebuilding my carb I started putting it back together and when trying to screw the float bowls back in 7 put of the 8 screw holes on the carb turned out to be stripped. If you look at the pictures they are the screw holes that attach the float bowl to the carb itself. The...

So after cleaning and rebuilding my carb I started putting it back together and when trying to screw the float bowls back in 7 put of the 8 screw holes on the carb turned out to be stripped. If you look at the pictures they are the screw holes that attach the float bowl to the carb itself. The...

I've looked thru the forum on this issue and haven't found what's happening to mine, sorry if i've missed an answer to this already. I literally am out of ideas. I have a Mikuni bs34II(pretty sure). This weekend I took it apart boiled it in lemon juice, then literally replaced everything in it...

Hello everyone, Long time no see/post. I have been away in a career for a bit, and thankfully haven't run into troubles with my bike (80/81 xs400sg) nor really needed to break into the carbs...until now. It turns out, one of my adjustable needles snapped because the prior owner had replaced...

Like the title says. The bike will only Dunn with the choke all the way out. By the way it's a 82 Yamaha 400 special 2 (400xs) the bike ran great before I parked it a couple years ago. I cleaned the carbs and had it running somewhat. I replaced the intake boots and did replaced the needle and...

Hey all, posted a couple times or so maybe less. Anyways, I am having a problem with my 1981 XS400 not firing. At first I thought maybe it was 180 degrees out because it wasn't firing, no popping or anything. Today I flipped it 180 and now it is popping about every other kick. :wtf: Any help...

mostly for my own edification, want to have these all in one spot... might help others clean carbs / tune carbs Carb Part Photos Cleaning Guide: http://www.thegsresources.com/gs_carbrebuild.htm Guide: http://www.amckayltd.com/carbguide.pdf Walk Through with photos...

I got these (http://www.dimecitycycles.com/vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-exhaust-parts-17-inch-reverse-cone-megaphone-muffler-80-84030.html) from dime city cycles I don't plan to change the air filters will I need to rejet? Would that be up on the main, the...

1982 xs400rj seca airbox delete, now using EMGO 52mm pods hesitate when high rpm (>5500-6000), will get worst when full throttle (WOT) according to service manual, stock jets are LHS127.5 and RHS117.5 jetted to LHS132.5 and RHS122.5 got better then pods with stock jets, but the hesitate still...

I little animation on how a CV carb works. May help peeps to understand the workings a bit better. The only difference on our carbs is the pilot is on top and the choke on the side. It may be shown this way in order to see the animation clearer

This will be my first bike. Thought I found a 1980 special II ( whats special about it anyway) and was about to buy. Low miles, good shape but after years in garage, needs a carb clean to run. However , after a searching carb cleaning, I'm on the fence. I'm not a mechanic... Is there a guide...

What are you guys using for clear fuel line? Is there something at a hardware store? just not sure of material. The only stuff I can find is on line can't seem to find any at auto parts stores.

Hey guys got a carb/mixture issue on my 81 xs400/H. Was running ok two weeks ago pretty close on the colortune. Now the right side sends a popp out the carb and goes super lean on the color tune. Left seems to be running but slightly weaker and a bit cold. New gas, carbs were super clean two...

So I noticed awhile back in my manual that the main jet sizes are different for the left and right. I have read that the left cylinder runs leaner so it needs a bigger jet, but why? Also why is the difference for my bike #10 and the german version of my bike only has a difference of #2.5

First off I want to say thank you in advance for any help that is given, it is much appreciated! I have a 1981 xs400 special 2 with stock carbs on it, I have switched over manual petcock (covered vacuum "knobs" on carb boots) with good gas flow. I am getting very good spark on both sides...