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Hello everyone,
I have a problem with plugs....maybe? The dealer says "no problem", the customer service people at Kawasaki says "no problem", but I'm not so sure.
I have two new (less than 20 hours) skis: a 2001 Ultra 130 and a 2001 STX-1100-DI; after proper break-in and pre-mixing for 1st 3 tanks, took them in for 10-hour service (at the 12-hour mark) and all 6 plugs were Very Black (not oil fouled, just carboned). They replaced the plugs. Now, at 19 hours, all 6 plugs are Very Black again. The dealer says "that's normal".
Kawasaki c/s says that all of their DI engines have that color on the plugs. To me this indicates a severe over-rich condition?.....but of course I come from a 4-stroke background. The skis runs okay, start right up, the STX100 might be a bit low on top-end power (can just barely break 50 mph on smooth water). The Ultra 130 wouldn't break 6300 rpms under any conditions; after arguing with the dealer for 3 weeks ("that's normal"), they are now replacing the impeller shaft bearings per Kawa's recommendations. I don't let the skis idle excessively and do quite a bit of WOT. Any thoughts?
I have a problem with plugs....maybe? The dealer says "no problem", the customer service people at Kawasaki says "no problem", but I'm not so sure.
I have two new (less than 20 hours) skis: a 2001 Ultra 130 and a 2001 STX-1100-DI; after proper break-in and pre-mixing for 1st 3 tanks, took them in for 10-hour service (at the 12-hour mark) and all 6 plugs were Very Black (not oil fouled, just carboned). They replaced the plugs. Now, at 19 hours, all 6 plugs are Very Black again. The dealer says "that's normal".
Kawasaki c/s says that all of their DI engines have that color on the plugs. To me this indicates a severe over-rich condition?.....but of course I come from a 4-stroke background. The skis runs okay, start right up, the STX100 might be a bit low on top-end power (can just barely break 50 mph on smooth water). The Ultra 130 wouldn't break 6300 rpms under any conditions; after arguing with the dealer for 3 weeks ("that's normal"), they are now replacing the impeller shaft bearings per Kawa's recommendations. I don't let the skis idle excessively and do quite a bit of WOT. Any thoughts?
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