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Honda FMX with Arrow cans

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Just need to check i've done things correctly.

I have a 2005 Honda FMX650. It is fitted with Arrow titanium full system, with removal baffles. It also has a K&N filter.

I assumed it was running lean, cruising at 70mph it felt like it was running out of fuel. Open the throttle fully it would pull through the surging stage and run nicely along at about 90mph.

I changed the main jet (a 168 standard Keihim) to a 175 Dynojet main(couldnt get hold of a Keihim main).

It now seems to run fine, no surging at 70mph, and it topped out at 105mph.

Should i leave it as it is, or should i fiddle with needle height, maybe go up to a 180 jet or something else? The power delivery is smoother, it starts & idles fine, and it doesnt seem to bog down when accelerating.

Thanks

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