Pete Posted August 4, 2006 Share Posted August 4, 2006 Here's a simple carb brake down and part list to look at. You have flat slide CV (constant volicity) carbs. The pic has standard round slides, or vacuum pistond as the brits call them. All the parts are basically the same. OK, this is how they work. When you twist the throttle, the butterfly opens allowing more air to flow into the carb. The increase of air flow will draw a little more fuel up through the main jet, which will make the engine turn faster. This causes a greater vaccum at the throat of the carb. There is a large opening in the throat which is a direct passage to the diaphragm. Some of the air being sucked into the carb due to the increase in vacuum goes into this port. This causes the diaphragm to be pushed, or sucked upwards. Being the diaphragm is attached to the slide, the slide moves up. The slide raising does two things. First, it allows more air to flow through the carb. Second, it lifts the jet needle. The jet needle sits in the main jet, and as it raises, it flows more fuel making the engine turn faster. I'll send you a pm shortly. I looked at the diagram you sent also. 1 Cover, Diaphragm 2 Screw, Diaphragm 3 Spring, Vacuum Piston 4 Jet Needle, N3RF STD 5 Seat, Piston Spring 6 Vacuum Piston, 2.5mm ( Slide with diaphragm, or throttle valve) 7 Kit, Choke Valve 8 Needle jet 9 Main Jet, 10 Kit, PILOT SCREW 11 Kit, Float Valve 12 Plug, Pilot Screw 13 Kit, Float STD 14 Seal, Float Bowl 15 Screw, Float Bowl STD 16 Screw, Float Chamber Drain STD 17 Stop screw STD 18 Washer STD 19 Lever STD 20 Screw, Float Chamber Drain STD 21 Spring 22 Spring 23 Spring 24 T-FITTING 25 T-FITTING 26 U-RING 27 Cap, Vacuum Connection 28 Rubber tube 29 Spring, Idle Adjuster Link to comment Share on other sites More sharing options...
PokerPacker Posted August 4, 2006 Share Posted August 4, 2006 i thought you were gonna describe his no-carb diet! :laugh: Link to comment Share on other sites More sharing options...
rincewind Posted August 4, 2006 Share Posted August 4, 2006 Is this a call out thread? Link to comment Share on other sites More sharing options...
DCsportsfan53 Posted August 4, 2006 Share Posted August 4, 2006 I love me some carburettors, it nice to see a good breakdown of all the pieces, thank Pete. It's too bad I managed to turn this into this :cry: :cry: :cry: I miss my car. 5 years of hard work, all gone in about .3 seconds. Link to comment Share on other sites More sharing options...
Pete Posted August 4, 2006 Author Share Posted August 4, 2006 Is this a call out thread? I guess you could say that........... I'm calling him out to come play with carbs Link to comment Share on other sites More sharing options...
herrmag Posted August 4, 2006 Share Posted August 4, 2006 I miss my car. 5 years of hard work, all gone in about .3 seconds. Okay, you are officially banned from posting in the "Advice for my drivers test" thread. :laugh: Is this thread trying to win the most random thread award? Wait a second, no chance it'll beat some of Mickalino's gems. Link to comment Share on other sites More sharing options...
Pete Posted August 4, 2006 Author Share Posted August 4, 2006 Okay, you are officially banned from posting in the "Advice for my drivers test" thread. :laugh: Is this thread trying to win the most random thread award? Wait a second, no chance it'll beat some of Mickalino's gems. Johnny has a bike with some problems. We have been going back and forth via PM, but I needed to show him a diagram so we could use the same tremanology. You can't do attachments with PM's, so this was the easiest way around it. Link to comment Share on other sites More sharing options...
herrmag Posted August 4, 2006 Share Posted August 4, 2006 Johnny has a bike with some problems. We have been going back and forth via PM, but I needed to show him a diagram so we could use the same tremanology. You can't do attachments with PM's, so this was the easiest way around it. Gotcha. Either way, I didn't know the in's and out's of a carb. At least now I know what one looks like. :doh: :laugh: Link to comment Share on other sites More sharing options...
Pete Posted August 4, 2006 Author Share Posted August 4, 2006 Gotcha. Either way, I didn't know the in's and out's of a carb. At least now I know what one looks like. :doh: :laugh: An automotive carb is extremely different, if you can find one these days. Even in the motorcycle industry, your finding fewer and fewer. Link to comment Share on other sites More sharing options...
DeanCollins Posted August 4, 2006 Share Posted August 4, 2006 DCSF, are those 42DCOE webers? Link to comment Share on other sites More sharing options...
DCsportsfan53 Posted August 4, 2006 Share Posted August 4, 2006 DCSF,are those 42DCOE webers? Same design but they're Dellorto's. The car originally was fuel injection but when I changed engines I switched to the carbs. I liked it a lot better with the carbs. Link to comment Share on other sites More sharing options...
Xameil Posted August 4, 2006 Share Posted August 4, 2006 I guess you could say that........... I'm calling him out to come play with carbs :paranoid: should you guys be playing with your carbs in public? :paranoid: Link to comment Share on other sites More sharing options...
DeanCollins Posted August 4, 2006 Share Posted August 4, 2006 Same design but they're Dellorto's. The car originally was fuel injection but when I changed engines I switched to the carbs. I liked it a lot better with the carbs. that car looks like a mid 80's cabriolet. a customer recently tried to trade me an '87 for a deck. I was going to do it until I drove it, it was one of the most ill handling cars. It had the mystery shifter (manual) and horrible brakes. You must of spent some serious money on suspension and brakes. Link to comment Share on other sites More sharing options...
riggins44 Posted August 4, 2006 Share Posted August 4, 2006 :rubeyes: This talk of carbs brings a tear to my eye. I grew up on carbs, but now everything is fuel injection. Think will go in the shop and talk to a tech that remembers carbs. We can have a trip down memory lane. :laugh: Link to comment Share on other sites More sharing options...
dwbiggs Posted August 4, 2006 Share Posted August 4, 2006 Me luvs carbs to. Dan Link to comment Share on other sites More sharing options...
DeanCollins Posted August 4, 2006 Share Posted August 4, 2006 Me luvs carbs to.Dan Dan is that a small or big block mopar? what's it in? Link to comment Share on other sites More sharing options...
DCsportsfan53 Posted August 4, 2006 Share Posted August 4, 2006 that car looks like a mid 80's cabriolet. a customer recently tried to trade me an '87 for a deck. I was going to do it until I drove it, it was one of the most ill handling cars. It had the mystery shifter (manual) and horrible brakes. You must of spent some serious money on suspension and brakes. Not as much as you would think, parts are incredibly cheap for that car. I had upgraded front discs from a Scirocco 16V for brakes. For the suspension, brand new control arms, tie rods, ball joints, strut bearings and polyurethane control arm bushings, rear trailing arm bushings and steering rack bushings ran me $250. It also had Bilstien sport shocks, H&R race springs, removed front sway bar (gave it just a touch of oversteer that way) and a 25mm rear sway bar. Also, upper and lower front strut tie bars. The suspension was the best part about the car and it handled amazingly. No body lean at all and very balanced, predictable handling with just a touch of controlled oversteer at the limits. It was fairly quick (about 150hp in a 2100lb car) but the handling is what made it so much fun. Oh well, time to start all over again . I guess I might as well consider it a blessing in disguise, having a project to work on is always fun. I'll be acquiring an engine-less 84 Rabbit GTi shell to start on in the next few weeks. Link to comment Share on other sites More sharing options...
Johnny Punani2 Posted August 4, 2006 Share Posted August 4, 2006 Pete, I checked the vacum pistons and they all seemed to work fine. No sticking and all moved in unison. I took the carbs to a local motorcycle shop and they think it might be the idle pin/pins that are clogged? Anyway, they are going to take a look at it and install a jet kit in it as well considering Vance & Hines recomends I do that. Now, I am going to have to remember where to re-install all the hoses for the friggin' thing. BTW, the fairings and tank are in the body shop and should be done in a couple days. I'm getting it painted racing yellow and bought a black decal kit from tapeworks for the F3. I should look schweet when it's finished... Link to comment Share on other sites More sharing options...
dwbiggs Posted August 4, 2006 Share Posted August 4, 2006 Dan is that a small or big block mopar? what's it in? Its a big block 440...in a Dodge Challenger. Dan Link to comment Share on other sites More sharing options...
DeanCollins Posted August 4, 2006 Share Posted August 4, 2006 Pete, I checked the vacum pistons and they all seemed to work fine. No sticking and all moved in unison. I took the carbs to a local motorcycle shop and they think it might be the idle pin/pins that are clogged? Anyway, they are going to take a look at it and install a jet kit in it as well considering Vance & Hines recomends I do that.Now, I am going to have to remember where to re-install all the hoses for the friggin' thing. BTW, the fairings and tank are in the body shop and should be done in a couple days. I'm getting it painted racing yellow and bought a black decal kit from tapeworks for the F3. I should look schweet when it's finished... Is this a honda 600? Link to comment Share on other sites More sharing options...
DeanCollins Posted August 4, 2006 Share Posted August 4, 2006 Its a big block 440...in a Dodge Challenger.Dan Niiiiiisch! 4 speed? Mopars are worth a fortune these days. Some day my '70 442 convert will eclipe $50k. It'll be a couple more years Link to comment Share on other sites More sharing options...
waterwagen Posted August 4, 2006 Share Posted August 4, 2006 that car looks like a mid 80's cabriolet. a customer recently tried to trade me an '87 for a deck. I was going to do it until I drove it, it was one of the most ill handling cars. It had the mystery shifter (manual) and horrible brakes. You must of spent some serious money on suspension and brakes.Hard to judge a whole model based on one car. That Cabrio is based on the same platform as the original GTI which drove darn well. Anytime you get a car that old, it's not going to be perfect though. Link to comment Share on other sites More sharing options...
DeanCollins Posted August 4, 2006 Share Posted August 4, 2006 Hard to judge a whole model based on one car. That Cabrio is based on the same platform as the original GTI which drove darn well. Anytime you get a car that old, it's not going to be perfect though. yea, I'm sure it needed shocks and springs etc.... Link to comment Share on other sites More sharing options...
dwbiggs Posted August 4, 2006 Share Posted August 4, 2006 Quote:Originally Posted by dwbiggs Its a big block 440...in a Dodge Challenger. Dan Niiiiiisch! 4 speed? Mopars are worth a fortune these days. Some day my '70 442 convert will eclipe $50k. It'll be a couple more years 442 vert...sweeeet! I love those 442's....any pics? I came close to buying a '69 442 vert a few years back. Sorta hijacked this thread didn't we? Apologies to original poster. :doh: Oh...Challenger is an auto. Sold a '70 Road Runner 4 speed last year. Dan Link to comment Share on other sites More sharing options...
Johnny Punani2 Posted August 4, 2006 Share Posted August 4, 2006 Dean, Yes, it's a 97' CBR600 F3 Link to comment Share on other sites More sharing options...
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