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when you cleaned carbs did you get the emulsion tubes out and clean them? when i did my 550 carbs i got everything spotless except i forgot the tubes. took them out and they were all clogged up. cleaned them and now it runs well

any 500t or 550 tanks??

maybe the pilot jets are clogged and not getting enough fuel to start. or choke not working properly. if it worked when fuel was added to the cylinders i would guess its a fuel issue

On my 550 the condensers were bad and only showed issues after riding around a bit. When they got hot they started not working properly causing sporadic weak spark. Sounded exactly like whats going on with your bike. May want to check the plug wires too.

marzocchi shocks?

if one of the points is arching really bad that could be it. mine arched a lot then replced the condensers and it worked fine again.

Re: Engine rebuild quote gaskets, orings, maybe a bolt or 2 if the strip/get stuck/break, beer

Re: Engine rebuild quote easy to do yourself and should be rather cheap depending on what you replace. just takes some time and a good manual

pm sent

ya super awesome shop. they didnt even charge me for anything. :-) very knowledgeable techs too.

whoops. completely done. hahaha

WHELP. She is running great and not fouling plugs anymore. I took her into a local dealer my fiancee dad uses. They did a compression test which came out fine and they recommended replacing the condensers. It looks like once they got hot they would create a dull spark. Swapped those out and she...

Airbox for cb550?

that would be sweet to atleast get me in the ballpark and ready for some fine tuning. i feel like i can take these carbs apart with my eyes closed already haha

Keihin 069A on a 76 cb550F. comes stock with 38 slow and 98 main

thanks for the tips there. ill do some tests tomorrow before work and see what i come up with

good to know. will adjust tomorrow and see how it goes then. does that have any effect on any throttle position off idle?

idles great at around 1100 rpms but does pop out of the carbs a bit. im assuming that means lean. havent messed with air screws. they are at 1.5 turns out

bike will barely run with choke on at all once it starts it needs constant throttle. cleaned the pilots a few weeks ago when i started the jetting process. ill clean them again tomorrow. could they be too small/lean? i didnt bump them up a size while mains went from 98 up to 110.

so i bumped main up to 110 and it pulls like crazy at WOT now. but after about 10-15 mins of normal riding it starts to blubber in midrange up and have no power up top again. dang this is frustrating. pulled plugs and they look good to me