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Boyesen - QuickShot 3 Adjustable Pump Cover

Product Code: APC-3
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  • Description
  • Reviews
  • Customer Photos

Boyesen - Quickshot 3 Adjustable Pump Cover

  • Turnable leak jet circuit maximizes volume of fuel and duration of fuel spray for any condition.
  • Investment cast and finished to precise tolerances.
  • High volume vertical check valve located in the QS3 for precise, consistent fuel metering.
  • Stops hestitation and bog.
  • Instant throttle response.
  • Improved low end performance.
  • Fits all Keihin FCR carbs.
  • Simple bolt-on.



I'm not too sure if it stopped my bog. I've only ridden my bike once since i installed it and I'm still doing adjusting and what not.


Longview, WA


Closest you can get to fuel injection!!!


I took my carb off and took off the bowl simple step by step instructions gives you pretty much everything you need, you don't need to wait to re jet it for fall spring winter and summer, I do it before every race and some practices soooo easy t use and makes all the differences reduces bog by alot if you have a carb GET IT NOW!!!!!!


Ottawa, ON


Quick response, no more bog.


Bought it because the bike was bogging horribly. Took me a few hours to install (DAM FCR all under the gas tank), turned it one turn out like instructed and went from there. Have this on an '06 RMZ 450 with a168 main, 45 pilot, stock needle, Pro circuit T-4 stainless, and Pro circuit Stainless header pipe. Helped out the most on turns where you power out or jumps right after turns.

Norman Perez

Burbank, CA.


Boysen - Quickshot 3 Adjustable Pump


Noticable Increase in Power and easy to install

Dillon 183

Port Kennedy , Western Australia


it was ok*


this seems like a good product just was very hard too get set right, this helps bike pull better and go faster i do not belive that it helps in starting the bike but its just my opinion


guam, usa


great product did everything and more


installed on CRF450 R made all the difference should have done this first.




Quickshot works awesome!


The Boyesen QSIII adjustable leak jet works awesome. I could not get the accelerator pump squirt duration correct with the stock setup, and would have been left guessing at which leak jet to buy. A few turns of the adjustment needle on the QSIII got me in the ballpark, then 1/4 turn increments out on the track (with gloves on - no tools required) got my bike absolutely barking through high-load, low-rpm situations (g-outs, whoops, abrupt jump faces, etc). Great product...


Vail, AZ


Boyesen - QuickShot 3 Adjustable Pump Cover

4.4 7


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