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I am in desperate need of a idle mix screw...found the tip broke off in the body. A small bicycle brake spring was sturdy enough to punch that sucker back out of the body! But now I'm stuck with a broken Idle screw...

Man I'm really slacking lately! Haha, well she's a '78!

Yes the idle mix screw/needle. Sorry guys! It's a xs400...not sure what model...pretty sure the carbs are bs34's.

Hey guys, my left needle jet was broken and stuck in the carb body. Long story short the tip is finally out, but what size is the needle so I can get another!? I can't find the number!!! Much appreciated

Well the carbs are bench synced pretty spot on if that would run okay? My pilots are 3.5 out but I'm gonna try another half turn...I noticed it hangs mainly when it's hot...has no power when "cold" almost like lack of back pressure but I noticed every once and while the carbs will pop back thru

Hey guys, when the bikes cold it has no power in the low rpm, then it'll warm up and run great. After it is warm for a while I'll notice the rpms will tend to hang. I have the pilots set 3.5 turns out and it idea around 1000-1300 rpm...seems to miss every once and a while I noticed also. I have...

Hey guys, I'm pretty sure it's my exhaust but I wanna ask anyway before I spend the money. My mufflers are stock but have a ton of holes and probably not much baffling left to be honest. Would the cause a problem with a low idle due to low back pressure? Also the holes leading to the hanging...

I figured that, I didn't notice if it was on it not but I was test riding after setting the points...

The wrist pin...it blows. The valves are seated so nothing seems bent, not sure if they are interference motors but I'm guessing not?

Okay, so as it turns out the pin on the left exhaust rocker came out...I'm now in search of another. Oh the fun!

Hi there everyone! Does anyone have an insight on a possible can tensioner known issue!?! I rebuilt my top end, running great then timing jumped. Reset timing, running like a top...motor starting clicking and it died. Has compression when I kick and it backfires hard! (Clearly timing) I have not...

Thanks so much! Runs like a top!!!

Cool thanks! I'll have to double check those. Pretty sure they're at minimum spec because they right side is hard to get the gap set correctly...

Hi there! I'm working on a '78 400 and rebuilt the top end. Now it starts and runs...takes a while and some starter fluid but...anyway, I have my left point firing dead on and can't get the right point spot on! It's maybe and 8th or a 16th off from the firing line(after it crosses.) Any...

I'm having a lot of trouble with my timing. The names EJ, just put rings and a new head gasket on my '78 xs400. Ran before but was blowing oil from the right cylinder...anyways I'm having trouble with the cam timing and driving me nuts!!! Where should this be set? I've been told #1 loves facing...

Thanks! I'll give it a shot!