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Enlarge Pilot Bypass Holes
- undiablo
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Has anyone of you ever enlarged by drilling the pilot bypass holes? AKA transition ports. I came across a website that does recommend it along with other mods and a jet kit. It is for a yamaha, but I think the concept can be applyed to any carb.
www.cartestsoftware.com/fz1/jetkitinstallation.html
Regards,
Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- SWest
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- 10 22 2014
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Steve
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- undiablo
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Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- redhawk4
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1978 KZ1000A2 Wiseco 1075 kit
1977 KZ650B1
1973 Triumph Tiger TR7V
1968 BSA Victor Special 441
2015 Triumph Thunderbird LT
1980 Suzuki SP400
Old enough to know better, still too young to care
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- undiablo
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Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- 650ed
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1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)
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- bountyhunter
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That's the first thing I thought of...... the gunsmith's code is always drill or cut on the cheapest part first, the most expensive is only as a last resort.swest wrote: Got a extra set of carbs incase you mung them up?
Steve
Sounds like a pod tuning thing.
1979 KZ-750 Twin
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- KZB2 650
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1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.
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- undiablo
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Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires
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- JR
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About 10 years ago I bent the tip of a pin 90 degrees and poked out those holes to get them clean and it cured a hesitation/stutter at 2,500 RPM. Drilling at an angle as in the photos seems extreme but if you have a spare set and dont mind the risk then it could be interesting.
I have a slight popping in the exhaust on deceleration and was thinking I might be a tad lean but am now thinking exhaust leak. When the snow melts in March I think I'll put in new thicker exhaust gaskets.
1980 kz750E1, Delkevic exhaust
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- Kapahulu
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Neither of my kits required drilling out passages like the FZ1 kit. I'm just saying Ivan knows his stuff.
Whether drilling the passages will help a KZ750, who knows unless you have the time and maybe a dyno to fine tune your bike.
1978 KZ1000, 1976 KZ900, 1975 H2, 1973 H1, 1973 H2, 1978 RD400, 1977 RD400, 1974 RD350
2strokeworld.com
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