Try reading the tuning section - Andy has spent hours writing it!
Here's a quote:
The easiest thing to do is a "plug chop". This involves running the bike flat out in top (6th) gear, near the "red-line", i.e., 12000rpm, for at least 10 seconds, preferably slightly uphill so the motor is under slightly more load. Two things to note here, firstly, that if the bike won't pull cleanly to 12000rpm, there is something inherently wrong with the MJ or needle set-up, and secondly, to accurately gauge a "plug-chop" you need fresh, clean plugs! Also, allowing the engine to run off of full throttle for only a second will give a false plug reading.
NOTE: It is harder to "read" a plug if Super Unleaded (i.e. higher octane) fuel is used over leaded fuel, as it burns more fiercely and therefore more cleanly. For more information on this see the Fuel section earlier on this page.
So, at the end of a long enough straight to run flat out for 10 seconds, pull the clutch in, flick the kill switch, and coast to a halt. Remove the spark plugs, and check the colour of their respective electrodes, noting which cylinder each plug came from. They should be a light tan colour if your settings are good. Too dark, or black, and it's rich, if the plugs are grey you are too lean, and if they are near white, you are dangerously lean!! _________________ MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball
Change the 10 seconds for 5 seconds if you aren't as brave, confident, or stupid as us!
Some have pointed out that 10 seconds is a long time to hold the throttle wide open in 5th or 6th... dunno what's wrong with them myself! _________________ Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
To be fair, finding a road where you can hold an NSR flat out for 10 seconds without being nicked, knocked off or running into something is pretty hard in the UK! _________________ MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball
I remember fondly the 1 mile "chop straight" between East Budleigh and Budleigh Salterton in East Devon that would regularly hear two NSR's absolutely flat out out down it most Sundays, and the pissed off looks from the bus drivers who's layby we would then use as the pits!! _________________ Andy.
NSR-WORLD.COM
Please keep all responses to Forum posts on the Forum so that others may benefit.
Please DO NOT PM me for technical advice. My time is precious, and you will probably receive a faster response on the Forum anyway.
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