Re: Engine Hesitation
Well, it is only 98 HP at 7K. I don't spend time trying to get my bike to go fast. 5th gear is pretty high and the top rated speed is only 123mph but you will never see that unless down hill with a strong tail wind. There are ways to do some tests on the TPS but it is more likely to be a flat spot as you turn the throttle rather than hesitation while holding it at full. You need an analog meter or do the test or the GS911 to see if there is any dead spots in the TPS range. You may still be getting some arcing under load if it is still a stutter you are equating to hesitation. Did you inspect the boots on the plug wires well for any cracks or damage while you replaced the plugs this time?
You could have dirty injectors, low fuel pressure or the hesitation issue from 80+ degrees. Someone else will have to tell you if the 99 had a cat code plug or not as Kirk has already mentioned having to unplug the air box temp sensor on a 99 with no brown wire for that particular issue so it may never have had one. Again, difficult to diagnose this type of issue remotely. It should not stutter ( miss) so if it is still doing that, we need to figure out the reason for that. Plugs made it better. If your original wires are/were good when you removed them, you might go back to them and test with them so see if you can eliminate the miss if that is what it is. If it isn't a miss, describe it better for us to muse on it.
Sugar Hill, GA
2001 K1200LTI – Champagne (current ride) Lazy Susan
1998 R1100RT – Never should have sold it
1974 Yamaha TX 750 Twin. Omni Phase Balanced
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