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FCR

FCR Tuning - Re-synchronization after adjusting the throttle cable - 2023-08-01...

I synchronize the FCR carburetors on my CBX1000 more than 10 times a year. Whether 10 times is a lot or not, I’m not sure. It’s not that I feel the synchronization has drifted while riding and then correct it. Rather, it’s because minor misalignments occur when I perform tuning and have to remove and reattach parts.
       
カテゴリCBX1000FCRMaintenance
タグAScabtuningCBX1000ColumnFCRFCR-Beginners
FCR

FCR Tuning - Tuning the main jet at full throttle is fun....

As you gradually open the throttle from a low position, you will adjust the relevant jets and screws. Once the low-throttle setting is in good condition, the main jet (MJ) is often already in a good or near-good state as well
       
カテゴリCBX1000FCR
タグCBX1000ColumnFCRFCR-BeginnersMJ
Maintenance

Spark Plug Replacement - The Idling of Carbureted Engines Smells Like Gasoline...

If you feel that the idling is off, replacing the spark plugs and then re-tuning is a viable option. Tuning involves various interconnected factors, and the spark plugs might be one of the causes of irregular idling. By replacing the spark plugs, you eliminate one potential concern.
       
カテゴリCBX1000FCRMaintenance
タグCBX1000Column
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.
       
カテゴリCBX1000FCR
タグCBX1000FCRJNMJ
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.
       
カテゴリCBX1000FCR
タグCBX1000ColumnCustomFCRFCR-BeginnersMJ
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.
       
カテゴリCBX1000FCRMaintenance
タグCBX1000ColumnFCRFCR-Beginners
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.
       
カテゴリCBX1000FCRMaintenance
タグCBX1000ColumnFCRFCR-BeginnersRamair
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.
       
カテゴリCBX1000FCR
タグCBX1000FCRFCR-Beginners
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.
       
カテゴリCBX1000FCR
タグCBX1000FCRFCR-Beginners
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.
       
カテゴリCBX1000FCR
タグCBX1000FCRFCR-Beginners