Hi Guys,
My friend bought a 1997 Seadoo Challenger with the 800's. One engine doesn't seem to fire on one cylinder. I have swapped the spark plug cables and the same cylinder seems to fire just fine, one doesn't. Swapping cables eliminates the bad spark plug cable. I can tell because the spark plug in one cylinder is warm/hot, on the other isn't getting hot. Also, just looking at the plug, its looks clean and new, where the one firing is browning.
We are aware the compression is low. 120 no fire, and 125 in the PTO side. It definately needs a top end. Would it still not ignite that cylinder with low compression? We get about 4500 rpm on that engine.
My friend bought a 1997 Seadoo Challenger with the 800's. One engine doesn't seem to fire on one cylinder. I have swapped the spark plug cables and the same cylinder seems to fire just fine, one doesn't. Swapping cables eliminates the bad spark plug cable. I can tell because the spark plug in one cylinder is warm/hot, on the other isn't getting hot. Also, just looking at the plug, its looks clean and new, where the one firing is browning.
We are aware the compression is low. 120 no fire, and 125 in the PTO side. It definately needs a top end. Would it still not ignite that cylinder with low compression? We get about 4500 rpm on that engine.