carb advice needed

Boats .net shows them as being 3F7-14984-00-00 with shipping they are asking in the area of $20.00 each. Now searching on Ebay I see these ...

Okay, so I have a 1978 (model year '77) xs 750 triple. I had it up and running a few months back only to find that once it got going it leaked oil from the head-gasket by the cup. Albeit, it didn't run the best, but i could at least (if it weren't for the awful leak) ride it and troubleshoot...

The Bike I have a pretty much stock 1980 xs650 that I am trying to get back into road worthy condition. I have pretty much got this thing ready to go but I am having a carburetor issue(or at least that what I think is the issue). The carb is a BS34 Mikuni and I have no clue if the main jets have...

I have an 79xs650 bobber ive been building. I have pods and low backpressure exhaust. I had my left cylinder burning super hot, so i swapped the stock jets for 140 mains, now its still running super hot, but its black sooting now, so tomorrow ill raise the pilot jets up a bit. And lower the main...

Hoping for a sanity check from the forum if you all don't mind. My next move is to remove and clean carbs, but has anyone experienced this: Background: Bought 82 heritage special barely running. Had carbs cleaned and rebuilt (GentlemanJim), to get engine running. was not ridable so did not...

Hey guys, I'm about ready lose my mind. I've clean my carbs many times and had the bike running pretty good twice, today started having trouble again, have to choke it to start, when using throttle it Boggs down, just put new reverse cone mufflers on bike and when running the exhaust seem...

Hi chaps hope your well :thumbsup: Those of you who know and read my posts are aware that i am running in my engine I have done 51 miles so far, the engine was rebuilt by a professional H Smedley of Smed Speed London and did a great job. The reason I have stated this is to negate the engine from...

Hey guys just clean my carbs, started bike today and gas coming out right side air box, both floats were set the same, what could it be?

Hey Fellas, I have been reading throughout this forum for about a month now and I haven't been able to find my issue listed. I have checked the carb guide and read through most threads. I am not very mechanically inclined so please break down your answers. I purchased a 74 xs650 with only 6,100...

Hello! Total newb with XS650s, bought a bobber project for my wife and am in the process of tuning and identifying exactly what we have. This is an '77 frame, totally irrelevant probably. The motor is from an '81 XS-H Special II. The carbs however appear to be early BS38s...

Hello guys I'm new to this forum. I joined because I've seen a lot of good advice so far but I am beginning to have problems with a restoration I'm currently undertaking. So I'll begin. I have just bought a 72 xs2 and I'm pleasantly surprised how easy it is to work on compared to a harley...

Hey guys, So I started up my bike a while ago for the first time in about 15 years, she sounds great, and all. I bought some new carbs for her, because I broke my old ones. And now I feel like the settings are off. My right exhaust wasn't firing very well, and when I checked the spark plugs...

hey all - newbie here so treat me gently if i mess it up ! i have an xs650 hardtail bobber - not sure of the age of the engine but the v5 says 1974! not sure which carbs i have either ! basically starts ok but when going past 3/4 throttle she starts to splutter someone has said it is...

Any help appreciated; I have a 1973 TX650 with... -mid 70's linked BS38s w/Uni stage 2 foam pods rebuilt and jetted 1 up on mains and 4 up on pilots -Stock headers cutoff about 3" behind mid controls with home made small baffles I've used on several bikes with no issues -New peanut tank...

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...

Hey guys, I just got my license and my first bike (1979 xs650 special) in early June and have been having a lot of fun with some problems of course from a newly purchased vintage bike. I replaced the exhaust system with a MAC 2-1, new K&N air filters (stock replacement), new bars, rear sets...

Hey all, I'm looking for help finding new replacement carbs for my bike. Miles xs is back ordered for replacement carbs and I'm usually sketched out by eBay. Anyone have any suggestions on where to buy replacements? Thanks.

i have a 1978 xs650. i just bought it a month ago and am still kinda new to yamahas. so this is the deal. when ever i take off on the bike or when shifting to another gear it feels really boggy. i have to keep the rpms really high to shift gears and take off so it doesnt bog out. should i try...

Hello everyone. I am so thankful to have this resource for this beautiful bike that I have. For a cycle that is touted by some as one of the most reliable made at the time, I have yet to see this reliability. I bought this 1970 XS1 as a rebuilt wall decoration about 4 years ago. When I purchased...

All, I have a 1979 Special, and left cylinder will not fire until about 1/4 throttle. Then it seems to run fine and pull the same as the right cylinder. I have cleaned the carbs several times, pulling the jets, etc. I have not pulled the carb tops to look at the diaphragms. Should I? I also just...