Surge hesitation around 8 to 10k
So a quick rundown at 1 point my 04 zx10r wouldn't rev past 8 k. 3 weeks later wouldn't go past 5k. I tested the fuel pump flow and it was very low at 35ml in a 4 second prime. I installed a new pump and it did 100ml in a 4 second prime so I'm good there. Now when I tested the bike i took off and the engine temp was around 120f. she pulled hard to to red line.
The front wheel comes off the ground it pull so hard. After riding about 5 to 10 min if I hit again it will surge between 8 to 10k as if it's losing fuel. What I have done so far is sea foamed, tested coils packs and they tested well. I looked at plugs and they was in great shape (ngk iridium) I looped the kick stand switch. When doing all this I went ahead and did the kleen mod, and I noticed the previous owner removed the secondaries.
I removed the exhaust valve,. I have no fi light. The bike is on stock ecu. I'm wondering if the mods I have make it run lean after temps get up around the 170 range at 8 to 10k. I did order a power commander ,spark plugs , and coilpacks already just in case. Is it possible one of the coil packs could be bad after warming up or do you guys think it's more of a I need a tune. I'm thinking it run hard at lower temps because the map is richer but I'm not sure. I just wanted your opinions.