Boyesen Quickshot 3 Accelerator Pump Cover

$119.99
$103.99 (13% off)
4.10 out of 5 stars
Fitment Expert:
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Boyesen Quickshot 3 Accelerator Pump Cover
Boyesen Quickshot 3 Accelerator Pump Cover
  • Description
  • Reviews (10)
  • Q&A (11)
  • Fitment
  • Tunable 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 hesitation and bogging.
  • Instant throttle response.
  • Improved low end performance.
  • Fits all Keihin FCR carbs.
  • Simple bolt-on.
4.1 out of 5 stars (10)
4.1 out of 5 stars
5 star   5
4 star   3
3 star   1
2 star 0
1 star   1
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1-10 of 10
Overall 3 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: MA
AJBFire
Don't touch AP timing screw

The QS 3 mentions adjusting timing screw if it was touched. do not adjust the screw if your bike isn't running bad. I touched mine and it has been a nightmare ever since.

Overall 4 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Jennings, LA 70546, USA
MotoMarxMan
OFF idle bog

Easy to install on 13 crf250x carb, had to remove, was experiencing an off idle bog. will try again later once exhaust is installed and further research. If anyone has any suggestions or has installed QS3, I would really appreciate it. Mods: opened top of air box, 165 main jet, fuel mixture screw, removed baffle in stock exhaust, and back fire screen from air filter. After failed tuning, dropped to a 155 main jet, reinstalled stock APC, back fire screen, and exhaust baffle. This got rid of off idle bog.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Lake Arrowhead, CA, USA
fknfast909
Awesome throttle response

Easy to install throttle response was alot crisper I have a 2004 Honda crf450 and always wanted fuel injection and this is the closest way.

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: La Grande, OR 97850, USA
jdbarton1331
WOW

The QS3 did just what they say no more bog witch in turn freed up alot more of my crf 450's bottom end power, pulls alot better out of the tight corners. Great product. Easy to install expect for the fact you have to tear half the bike apart to get the carb out but it was in the carb in less then 5 minutes after pulling the it, fit perfect, looks good easy to adjust, what can i say another awesome product from Boyesen

Boyesen Quickshot 3 Accelerator Pump Cover
Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
motoman351
A MUST HAVE!

I bought this for my 2008 honda crf250r, my bike had the worst bog ever and could hardly gap the throttle without it hesitating even while riding, so i took a chance and bought this product and WOW! Its a night and day difference no more bog whatsoever no matter how hard i gap the throttle, I knew it would help but never thought it would be this jurastic! If your looking for the fuel injection response look no further this is bolt on fuel injection!

Overall 4 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Everett, Wa
Rusty14
Improved Performance

My bike started easier and throttle response was more responsive and crisper.

Overall 4 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Verified Purchaser
Location: Redford, MI
randizzle
Helped with my bog

Installed on my trx450er and followed all instructions...did a little tinkering and its working great so far. No more removing the jet to change it out....just turn the nob.. any help with tuning is a thumbs up for me

Overall 5 out of 5 stars
Durability
Ease of Installation
Performance
Power
Style
Location: Oklahoma
highlander1
2011 WR250F

I added an FMF pipe and had a horrible flat spot on the Lowe end. I added the Boyesen QS3 and all was well with the world. The bike pulls cleanly from idle to flat out. It also starts well. I could not be happier. I can not give a high rating on durability as I just got it. But knowing Boyesens rep I can give it a guess as top quality as with all their products I have used on my 2 smoker RMB in the 70's.

Boyesen Quickshot 3 Accelerator Pump Cover
Overall 1 out of 5 stars
Location: Tulsa ok.
GeoC
Carful about clearance

On my Ktm 250sxf the adjust screw on bottom did not have clearance on engine case. It snapped of and made it useless.

Overall 5 out of 5 stars
Location: Lynnwood, WA.
TitaniumMill
Excellent part !

BOYESEN QUICKSHOT 3 ACCELERATOR PUMP COVER works wonders, this part with JD jetting I was able to dial up the performance big time on 06 YZ450F !

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Total Questions (11)
Questions with answers:
  11
Questions without answers:
0
lockybailey Location: mackay, QLD, Australia
1-10 of 11
Scott 4 months 6 days ago Location: El Dorado, CA
I own a 2006 Kawasaki KX450F and experiencing bog when I snap the throttle. Does the Boyesen Quickshot 3 include a diaphram, or is that separate?
MotoSport Staff Expert
4 months 1 day ago
MotoSportExpert
This would be for the Boyesen Quickshot 3 Accelerator Pump Cover only for your 2006 Kawasaki KX450F.
Hager33 Over 9 months ago Location: New Jersey, USA
How easy is installation?
I'm debating on buying this product but I'm not sure how easy it is to install. Will it be an easy quick bolt on to my carb or does it involve taking the carb apart?
Top 1 Contributor
Over 9 months ago
MotoSportExpert
The Boyesen Quickshot 3 is a Simple bolt-on product. If you have doubts installing it, I would suggest to have a shop or certified mechanic install it for you.
lockybailey Over 9 months ago Location: mackay, QLD, Australia
Does the carby need re-jetting if this is installed?
Expert MotoSport Staff
Over 9 months ago
MotoSportExpert
If your bike is jetted correctly now you should not have to re-jet after installing the Boyesen Quickshot 3 Accelerator Pump Cover.
jman1010 Over 10 months ago
Will it work on my 2005 ktm 525mxc?
Top 1 Contributor
Over 10 months ago
MotoSportExpert
Boyesen Quickshot 3 Accelerator Pump Cover fits ALL Keihin FCR carbs
Robert Over 11 months ago
Wondering if this would work?
I just bought my first 4 stoke about 3 weeks ago. love it! BUT I'm having issues in nuetral if the bike is just idling and I snap it to full throttle. the bike boggs and dies. will this possibly help me with this problem? Thanks!
MotoSport Staff Expert
Over 11 months ago
MotoSportExpert
Yes, this will fit your 2003 YZ450F. However there may be other issues such as jetting that can be changed for your elevation and area. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a local motorcycle dealership??s service department to have your bike properly jetted. service department to have it properly jetted. need a around an inch of clearance below your Carburetor to install and use this properly.o8uo
crf250x 1 year 5 months ago Location: Yucca valley
What do I tune this product to I have a 2012 crf250x and I don't know what to tune this product to. I need help ?
I live at 3,300 ft elevation and my bike has a slight bog/hesitation I have the air box mod and pink wire mod and smog kit. And a 165 jet I need help I have played with it and i just can't get it right. I need help with this to get my bike running perfect and smooth thanks for your time.
Expert MotoSport Staff
1 year 5 months ago Location: Portland, OR, USA
MotoSportRyanT
Without being there to know how exactly the bike is running, It would be very difficult for me to accurately help you jet your bike. There is not a specific setting I could give you for jetting your bike. Jetting can be very tricky, there isn't one setting that will work everywhere with every bike. I would recommend taking your bike to a motorcycle with a service department to have it properly jetted.
Zach 1 year 6 months ago Location: Evansville, IN, USA
Looking for best quick shot device made for 2012 yz 250f?
MotoSport Staff Expert
1 year 6 months ago Location: Portland, OR, USA
MotoSportRyanT
The Boyesen Quickshot 3 would be great for your 2012 Yamaha YZ250F. Boyesen also makes the Boyesen Quick Start Kit that features an Integrated Hot Start Assist eliminates problem 4-stroke hot start procedure. I would recommend either the Quickshot 3 or Quickstart kit for your bike.
Josh 1 year 7 months ago
QS3 vs QS2?
Is the main advantage of the QS3 being that it is adjustable?
Expert MotoSport Staff
1 year 7 months ago Location: Portland, OR, USA
MotoSportRyanT
Yes, the Quickshot 3 is basically a newer version of the Quickshot 2 with a tunable leak jet circuit that maximizes volume of fuel and duration of fuel spray for any condition.
Easyrider 1 year 8 months ago Location: Quebec City, QC, Canada
Will it really fit my bike???
Hi, I have a '03 KTM 450EXC-Racing with the RFS motor and the electric starter. I noticed that there's not a lot of room between the carb and the starter. With the carb in your hand it's always fine, but I don't really know excatly where the adjusting screws will be placed with the carb in place. So my fear is that I may break something while installing or riding the bike... and not talking about the access to the adjusting screw after installation... Will this device REALLY fit my bike???
MotoSport Staff Expert
1 year 8 months ago
MotoSportRyanT
It would definitely fit the Keihin FCR carburetor on your KTM. It's really hard to say without seeing the clearance between the bottom of the carb and the top of the starter motor on your KTM 450 EXC. The bottom of the cover and adjusting screw come down a bit further than the OEM cover. The adjustment screw is angled down and out towards the left side of the bike for easy access. I would say you would need a around an inch of clearance below your Carburetor to install and use this properly.
moto596 1 year 9 months ago Location: Texas, USA
I have a leakage of oil on the bolt on cover where the oil filter goes.?
Im wondering if this might be the part? i ride an 08 yamaha 250f
MotoSport Staff
1 year 9 months ago Location: Portland, OR, USA
MotoSportExpert
This is a carburetor part to replace the stock accelerator pump cover. This has no relation to the oil filter and would not fix the problem you are having. More than likely your oil filter cover o-ring's are leaking. It is very hard to say without seeing the bike but typically this would be the issue. The oil filter o-rings can be found in the OEM parts for your 2008 YZ250f here: http://www.motosport.com/dirtbike/oem-parts/YAMAHA/2008/YZ250F/OIL-CLEANER
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