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This is a great tutorial on the fuel mixture screw for the VM26 and VM28 carbs.
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Everything in the first paragraph is wrong1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SES -
It looks right to me, what is wrong with it?Comment
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Other than the fact that fuel screws are still available from other sources, I didn't see anything wrong, either, but I am not an expert on the VM carbs.
Nice pictures, though.
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mine: 2000 Honda GoldWing GL1500SE and 1980 GS850G'K' "Junior"
hers: 1982 GS850GL - "Angel" and 1969 Suzuki T250 Scrambler
#1 son: 1986 Yamaha Venture Royale 1300 and 1982 GS650GL "Rat Bagger"
#2 son: 1980 GS1000G
Family Portrait
Siblings and Spouses
Mom's first ride
Want a copy of my valve adjust spreadsheet for your 2-valve per cylinder engine? Send me an e-mail request (not a PM)
(Click on my username in the upper-left corner for e-mail info.)Comment
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I disagree with his range for setting them AND him calling them mixture screws. They are PILOT screws. From my long experience with VMs its set the Pilot Screws at 7/8 out from gently seated and forget they exist.. hands offMY BIKES..1977 GS 750 B, 1978 GS 1000 C (X2)
1978 GS 1000 E, 1979 GS 1000 S, 1973 Yamaha TX 750, 1977 Kawasaki KZ 650B1, 1975 Honda GL1000 Goldwing, 1983 CB 650SC Nighthawk, 1972 Honda CB 350K4, 74 Honda CB550
NEVER SNEAK UP ON A SLEEPING DOG..NOT EVEN YOUR OWN.
I would rather trust my bike to a "QUACK" that KNOWS how to fix it rather than a book worm that THINKS HE KNOWS how to fix it.Comment
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Thank you for taking the time to comment guys. I like anything that furthers my knowledge. As for the names of components, I guess that is why I really like pictures, no danger of confusing what is being talked about. The range setting debate is interesting. Anything between 5/8ths and 1 and 1/2 turns crops up. I would happily follow the guidance of 7/8ths. makes a lot of sense.
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Some may know that here at Centurion HQ we supply the unobtainable OEM Fuel Mixture Screw for the Mikuni VM range of carburetors
( NO, other companies make this screw).
This Fuel Mixture Screw
(NO. it's a Pilot fuel screw) not to be confused with the air adjustment screw
(Pilot Air screw) is located to the front of the carburetor float bowl and on the underside. (Poorly written, the Pilot Fuel screw is underneath in the front, the Pilot Air is on the side)
Starting off an informational post with bad information leads me to discredit whatever else the poster has to say. I know he's blowing his own horn, but he needs to have his information correct
It reminds me of working Hurricane Wilma, I had to have an structural engineer out to inspect a large building that had been hit by a tornado. His analysis was OK, but his diagram was 90 degrees off (the N arrow pointed west). I emailed him about it and he claimed he didn't have a compass during his inspection and that it didn't matter. I pointed out that I 95 was less than a block away, was elevated and made enough noise that it was difficult to hear speech, but that didn't impress him. I had my boss call his boss and get it corrected. Want to have your credentials discredited in court? Be 90 degrees off1978 GS 1000 (since new)
1979 GS 1000 (The Fridge, superbike replica project)
1978 GS 1000 (parts)
1981 GS 850 (anyone want a project?)
1981 GPZ 550 (backroad screamer)
1970 450 Mk IIID (THUMP!)
2007 DRz 400S
1999 ATK 490ES
1994 DR 350SESComment
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