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Going to 2 carbs on my 550L

  • Thread starter Thread starter zgmike
  • Start date Start date
Z

zgmike

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Anyone done this? Im going to make a manifold to bring the 4 down to 2, but I have no idea where to start, jet wise. I will probably get 2 new vm carbs, and use pod filters. what size innards would I look for to supply the same amount of gas? I realize it will take alot of trial and error, just looking for a good starting point.
 
"...Im going to make a manifold to bring the 4 down to 2, but I have no idea where to start"

Don't start, fix your carbs (or pay a member on here to do it) - you'll learn more this way then jury rigging a different setup with inferior performance.
 
tkent02 said:
You will actually need a lot less gas, because it will be flowing a lot less air.
Click to expand...
And less gas and less air mean less power. A engine is nothing more than a pump the more you put in the more you get out of it.
 
I dont like cv carbs, i want some vm carbs. So from what I gather then, 2 carbs with the much maligned free flowing pod filters and no restrictive airbox, it should be a wash.
 
Is this for some sort of minimalist bobber project? Running open pipes?
 
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To answer your question, no, nobody's done this. For a reason.

You don't like CV carbs (although they work perfectly fine), you like VMs, so you're going spend tons of hours to invent and reengineer the entire fuel delivery system for your bike? And it's a 550L (why is it always a 550, 650, or 750 L?), so you're not doing it to increase performance to make it into a roadacer or dragbike.

Sound like a good idea to me. Let us know how it works out for you.
 
they dont work perfectly, nothing does, so you have nothing to offer except genreralizations. Im doing it because in the future it will be a more simple setup. What do you have against me spending time? It isnt your time or energy. I tell ya, i read this forum alot and i think an ideas merit can be gauged by how much resistance the old fogeys on here put up. You get so personal, like you effing invented the thing. NEWSFLASH - This just in - The ONE TRUE GOD, JEHOVAH, did NOT engineer the Suzuki GS!!!!! You Old Farts should remember what your mamas taught you about not saying anything at all.
 
Is this for some sort of minimalist bobber project? Running open pipes? Yes, kind of. Im moving the battery and electronics, cut the pipes, and they are currently b affled, but that could be changed if it would help the 2 carb system.
 
zgmike said:
they dont work perfectly, nothing does, so you have nothing to offer except genreralizations. Im doing it because in the future it will be a more simple setup. What do you have against me spending time? It isnt your time or energy. I tell ya, i read this forum alot and i think an ideas merit can be gauged by how much resistance the old fogeys on here put up. You get so personal, like you effing invented the thing. NEWSFLASH - This just in - The ONE TRUE GOD, JEHOVAH, did NOT engineer the Suzuki GS!!!!! You Old Farts should remember what your mamas taught you about not saying anything at all.
Click to expand...


Try not to get any more butt hurt here but you are NOT smarter than the guys at Suzuki who engineered an air box and 4 CV carbs to work the best on your bike.

Sorry, but it's the truth.
 
zgmike said:
Is this for some sort of minimalist bobber project? Running open pipes? Yes, kind of. Im moving the battery and electronics, cut the pipes, and they are currently b affled, but that could be changed if it would help the 2 carb system.
Click to expand...

Perhaps not a parts bike. Sounding more and more like it's headed for the scrap heap. Nobody will buy it after he finishes junking it.
 
JJ said:
Perhaps not a parts bike. Sounding more and more like it's headed for the scrap heap. Nobody will buy it after he finishes junking it.
Click to expand...

Unfortunately, with the "Chopper" reality shows of the '00s, and now the "Caf?" reality shows of the '10s, the destroyed, non-running hulks of GSes, KZs, XJs, and CBs have become far too prevalent on Craigslist.

Around here, there are some weeks where more "modded custom project bikes" (i.e. F***ed over UJMs) are listed for sale than stock or mostly stock bikes, running or otherwise. The "modded custom" is rarely finished, almost never runs, and usually lacks the proper lighting and brakes to be safe to ride, or even street legal.

It's a damned shame, too.
 
Right on !

Right on !

Griffin said:
Unfortunately, with the "Chopper" reality shows of the '00s, and now the "Caf?" reality shows of the '10s, the destroyed, non-running hulks of GSes, KZs, XJs, and CBs have become far too prevalent on Craigslist.

Around here, there are some weeks where more "modded custom project bikes" (i.e. F***ed over UJMs) are listed for sale than stock or mostly stock bikes, running or otherwise. The "modded custom" is rarely finished, almost never runs, and usually lacks the proper lighting and brakes to be safe to ride, or even street legal.

It's a damned shame, too.
Click to expand...

Bam ! :clap:
 
I just don't understand what you are trying to accomplish by going to 2 carbs? It won't perform any better if at all. There are thousands of bikes running around right now with 4 CV mikuni carbs on them and the work great. You just have to learn how to clean them correctly and set them up so they will run right. Oh and by the way im not an old 'fogey' im 26. Im going to tell you right now after the little rant you just had good luck getting anyone here to help you. Didn't your mom tell YOU that you catch more flies with honey than vinegar? Good luck on your project.
 
Why not put on a set of four VM carbs?

I have VM carbs for 550s coming out of my ass, many complete sets of good ones.
 
a 1930s single barrel Rochester carb from a chevy straight 6 would work.
So would a pair of bsw30s as they would flow enough and would be considerable narrower than the ones you are using now.

Are you a machinist?
 
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