CBX1000 FCR Tuning - Adjusting the Jets Slightly Leaner for Summer...
When discussing carburetor tuning, terms like "rich" and "lean" are often used. These terms can be a bit confusing for beginners.
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FCR FCR Tuning - Full Throttle! How lean can the main jet go? Will the engine hold up?...
I have performed full-throttle runs with a main jet size of 102 on my CBX1000.This is a discussion about how lean the main jet can be set based on past experiences.I should clarify that I haven’t tested it to the point of damaging the engine, and the testing is therefore insufficient. The inadequacy of the testing is due to the fact that it has not been tested until the piston melts.
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FCR 3 Reasons Why Used FCR Carburetors Can Be Used...
When you perform the overhaul yourself, it generally ends up being quite cost-effective. This is specifically if you handle the overhaul personally. If you don’t have jets and other parts on hand, it's recommended to use the Carburetor Parts Kit for FCR - KEYSTAR. If you already have some FCR parts, you can buy individual parts separately and complete the overhaul that way.
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FCR FCR requires a filter for street use. Constant use of a velocity stack is not recommended....
This applies not only to FCRs but to all carburetors in general: going filterless on the street is not recommended. This is because it sucks in debris. I will write a column discussing why it’s better to avoid this and what you should do instead.
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FCR FCR Tuning - Acceleration Pump Discharge Timing Adjustment - Finalized as is - 2023-06-20...
FCR Tuning for CBX1000. I was concerned about the discharge start position of the acceleration pump, so I conducted a test ride. As a result, I ended up making changes and then reverting to the original settings. There wasn’t much noticeable difference.
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FCR FCR Tuning - Test Ride with Awareness of Shift Position - 2023-06-17...
I'm still not quite able to tune it perfectly yet. Recently, I had the opportunity to ride on the highway. During the ride, I noticed something: I realized that I haven't been tuning with much attention to the shift position.
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CBX1000 Carburetor synchronization is not the kind of maintenance where you can fail – the challenging part is the preparation....
Carburetor synchronization is a task that can be considered simple. The challenging part is that the preparation before the task can be a high hurdle for beginners. Once the preparation is complete, most people are able to successfully perform the synchronization on their own.
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FCR FCR Tuning - Adjusting throttle openings below 1/4 with the air screw, slow jet, and jet needle straight diameter - 2023-06-11...
This time, I will write about the air screw, slow jet, and the straight diameter of the jet needle from my perspective. This primarily concerns the throttle openings from about 1/4 to 1/2. Recently, I addressed and improved the issue where the throttle would hesitate during rapid opening—whether it was lean or rich was unclear. I will document the improvements made.
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FCR FCR Tuning - Jet Needle Clip Position and Accelerator Pump Diaphragm Replacement - 2023-06-10...
I was concerned about the throttle opening being less than 1/4, so I made some adjustments. Here’s what I did:①Changed the clip position on the jet needle.②Set the acceleration pump diaphragm to the standard output.I will discuss both points. There is an important note: do not perform these adjustments simultaneously.
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FCR FCR Tuning - Adjusting Accelerator Pump Timing and Air Screw - 2023-06-05...
Recently, I was concerned about the throttle opening being less than 1/4, so I made various adjustments. It seemed that the AS (air screw) wasn’t opened enough, so I opened it slightly more, and it felt significantly better. I also experimented with the accelerator pump by turning it off, setting it to 0.6mm, and then to 1.0mm, and adjusted the discharge timing accordingly.
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