01-02-16, 11:27 PM
Got one myself (2000) - well worth him getting on to zx-9r.net
100 miles a tank is what I would get thrashing (and I mean a full tank of complete mayhem) - commuting on mine at the moment I'm getting over 55mpg like clockwork and hitting reserve at about 190.
If he's got a B, ignore what I'm about to say. If it's a C, then he can sort the following:
Pickup and low speed throttle openings (below about 3k) are snatchy/lumpy as standard on them. Most people on the forums recommend adjusting the pilots (will check what the settings recommended for the Cs are as I only know the later models), fitting an ignition advancer and balancing the carbs should work wonders.
They're not well known for wearing the emulsion tubes, unless they've had dynojet needles fitted as they had a bad batch that did cause that. A pretty common upgrade is to fit very small washers under the stock needles to lift them a little bit - smooths out and gives a power boost in the midrange (they run lean as stock).
100 miles a tank is what I would get thrashing (and I mean a full tank of complete mayhem) - commuting on mine at the moment I'm getting over 55mpg like clockwork and hitting reserve at about 190.
If he's got a B, ignore what I'm about to say. If it's a C, then he can sort the following:
Pickup and low speed throttle openings (below about 3k) are snatchy/lumpy as standard on them. Most people on the forums recommend adjusting the pilots (will check what the settings recommended for the Cs are as I only know the later models), fitting an ignition advancer and balancing the carbs should work wonders.
They're not well known for wearing the emulsion tubes, unless they've had dynojet needles fitted as they had a bad batch that did cause that. A pretty common upgrade is to fit very small washers under the stock needles to lift them a little bit - smooths out and gives a power boost in the midrange (they run lean as stock).