Quote:
Originally Posted by
WeaveMcQuilt
I have less power in higher gears, overtaking speeds (60+) feels like it's being throttled/choked a bit.
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Yup. You are running too lean.
Firstly, you need to adjust your fueling when you run a high flow air filter. Two options;
1) A PC-V, cira �200
2) A KevMod, you'll need to PM Kev, the only one I can find on eBay is the KevMod +O2 tuner.
In the short term, I would swap your OE filter back in or you risk causing damage to your motor. At least until you've sorted out the fuel mixture.
I would recommend going for the O2 Tuner too, this increases fuel efficiency and makes the bike very smooth from low revs (and takes about 5 minutes to fit)