zx6r high mph problem
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Junior Member
1st Gear Member
Joined: Sep 2008
Posts: 12
From: rome new york
zx6r high mph problem
i have a zx6r 98 when im in first and second gear and full throttle its fine as soon as i get in third or fourth about 120 mph it bogs right down like to much fuel but i dont under stand why does anyone know of any problems like this
Senior Member
1st Gear Member
Joined: Dec 2007
Posts: 2,092
From: terrorizing southeastern norf carolina
and now for an explaination as to why i say this. cuz i'm bored
at W.O.T., intake velocities are approximately 120MPH, therefore, at such speed, the ram air starts to create positive air pressure on the carbs and airbox. a vac line leak will pressurize the float bowls unevenly in the carbs and result in a lean condition. bet ya dollars to dounuts it backfires like a MF'er when you're at speed, and it stumbles a bit at moderate-speed heavy acceleration? (around 60-90mph, 5th and 6th gear roll-ons..)
at W.O.T., intake velocities are approximately 120MPH, therefore, at such speed, the ram air starts to create positive air pressure on the carbs and airbox. a vac line leak will pressurize the float bowls unevenly in the carbs and result in a lean condition. bet ya dollars to dounuts it backfires like a MF'er when you're at speed, and it stumbles a bit at moderate-speed heavy acceleration? (around 60-90mph, 5th and 6th gear roll-ons..)
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