From a press release issued by Ducati Corse:

CAPIROSSI CONFIRMS: “THE NEW ENGINE IS BETTER”. TWIN PULSE WILL BE AVAILABLE FOR THE ASSEN GP FOR BOTH DUCATI MARLBORO TEAM RIDERS

Catalunya (Spain), Tuesday 15 June 2004 – The second and final day of testing for the Ducati Marlboro Team at the Montmelò Circuit, Catalunya, was cut short by changeable weather conditions. Heavy showers during the morning meant that Loris Capirossi was unable to lap with any consistency, but the Italian did go out on the track for several laps to gauge the behaviour of the new engine in the wet.

Team-mate Troy Bayliss, who crashed spectacularly during Sunday’s race, opted not to continue testing today and returned home this morning to get back into shape as quickly as possible.

Loris Capirossi only completed a few laps in the wet, but this was sufficient to confirm yesterday’s positive sensations: the new engine considerably improves the bike’s ‘rideability’, a characteristic that Loris particularly appreciated given the characteristics of the track.

“We are really pleased with the debut of the new Twin Pulse engine”, declared Ducati Marlboro Team director Livio Suppo. “Loris confirmed that power delivery has improved, even in the wet, and we are preparing for Assen with renewed optimism. I am convinced that Troy, after a few days rest, will be in perfect shape in the Netherlands and we can’t wait to get back out on the track again. The first races of the 2004 season have not been easy, but Ducati Corse is showing that it has a capacity to react quickly and a determination to become protagonists once again that I feel sure that we will soon be rewarded with results.”

The new irregular firing order Twin Pulse engine has met with approval since being tested at Mugello and, as confirmation of this, both Ducati Marlboro Team riders will use the new engine in the Dutch TT at Assen.