• Bolt on the Boyesen Quick Shot 2 Accelerator Pump Cover for the missing link your high performance dirt bike or ATV is missing.
  • The Boyesen Quick Shot 2 will boost the fuel capacity into your carburetor by 25% over stock.
  • The boost in fuel by the Quick Shot 2 eliminates hesitation and bog when getting on the throttle.
  • Boyesen engineered the Quick Shot 2 Accelerator Pump Cover with a high volume check valve.
  • An important feature is the accelerated fuel delivery that only the Quick Shot 2 can handle.
  • Improvement on the bottom end will be a noticeable advantage the Quick Shot 2 will give.
  • Running your bike to the limits adds heat which can cause stalling, but the Boyesen Quick Shot 2 will reduce the chances of a hot engine stall.
  • Boyesen designed the Quick Shot 2 so it will fit all FCR Keihin carburetors.
  • The 2007 Honda CRF model houses a high volume check valve that manages fuel through a cartridge design for high sensitivity and instant acceleration.

Rating

10

What It Is

The Quickshot 2 is the second-generation accelerator pump cover from the geniuses at Boyesen Engineering. Designed specifically for the '07 Honda CRF250R and CRF450R, the QS2 can also be fitted on all other four-stroke MX bikes with some slight carburetor modifications.

Hits

When the original Quickshot was introduced, we raved about its ability to eliminate the bog that four strokes suffer from when the throttle is twisted open quickly from idle. For 2007, Honda relocated the float bowl check valve to the accelerator pump cover, and the QS2 takes that design one step further. Bolting the QS2 on takes only a few minutes and can be done at the track if some precautions are taken to clean the carburetor and surrounding area first. (For our sea-level locale, the following are the carburetor settings we tested the QS2 with: 168 main jet, NKUS needle (2nd clip from top), 48 pilot jet, 45 leak jet, fuel screw 1 3/4 turns out, accelerator pump timing .115".) The difference we felt in throttle response with the QS2 bolted on was astounding. In stock condition, it was possible to kill the CRF250R's engine by holding the throttle wide open from idle, but with the QS2 installed, instant throttle response was gained. On the track, the bike felt livelier and much snappier, with no hesitation at all. Thanks to the instant throttle response, our test bike felt faster and more powerful, too.

Misses

The QS2 is model specific, but it can be used on other bikes if the ball bearing in the float bowl's check valve is tapped out with a small punch, first.

The Verdict

Once again, the guys at Boyesen have hit a homerun. The Quickshot 2 is, dollar for dollar, one of the best investments you can make if you ride a Honda CRF.

BOYESEN QUICK SHOT 2 ACCELERATOR PUMP COVER

Our Price: $89.99
Retail:$94.99
You Save:$5.00 (5%)
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Overall:
4 out of 5
4 out of 5
Location: Foreston, MN
Solid product
" I installed one on my 06 TRX450r. It helped some with response. Still had a slight bog but not as bad. If you wanna get rid of any bog get this and have your quad dyno tuned! "
Overall:
1 out of 5
1 out of 5
Location: milton, fl
not that good
" bought quick shot for more performance. it didnt improve response as claimed, but worse than that it leaks gas non stop. removed it and put stock back on. waste of $90.00. more mad that it wouldnt seal. "
Overall:
1 out of 5
1 out of 5
Location: Chicago area
BOYESEN QUICK SHOT 2 ACCELERATOR PUMP COVER
" I wouldn't buy this for KTM bikes, it will not solve your bogging problem. This gives too much gas upon acceleration! You need a leak jet or BOYESEN QUICK SHOT 3 ACCELERATOR PUMP COVER to lessen the amount of fuel on acceleration. "
Overall:
4 out of 5
4 out of 5
Location: Not Available
Qshot 2
" I noticed a small difference. Didn't totally cure that slight hesitation off dead idle. I would say it was probably worth $45-50 range for the improvement. Looks cool though and very easy to install. About 10 minutes "
Overall:
5 out of 5
5 out of 5
Location: HAMBURG NY
Expensive but worth it
" we'll for the money i'd like to get more than a tiny cover and a sticker but.. you do get what you pay for 2 kicks starts cold everytime, one kick hot and pulls the front end from almost stalling in 2nd gear i'd say the bog is gone easy install for the weekend racer or the do it yourself crowd. cant really see it on the bike but the cover does look pretty cool Installed on 2010 kx250f "
Overall:
5 out of 5
5 out of 5
Location: Orange County CA
Great Product
" I have a 2004 YZ 250F. I wanted to add some more spunk to my bike. I read great reviews for this product from this site and magazines. This product gives me more power. Its consistant and smooth. It brings the front tire off the ground with ease and reduces the low end bog. I wish i bought this product years ago. "
Overall:
5 out of 5
5 out of 5
Location: Santa Barbara CA
" A well built product by a reputable company but did not notice a differance in power delivery on its own. Teamed with a K&N intake and Pro Curcuit exhaust im sure its doing its thing now. "
Overall:
5 out of 5
5 out of 5
Location: Orange County, CA
The BEST 4 stroke product period!
" This really helps with the starting and bogging, after I added this to my bike I was just amazed at the difference. "
Overall:
5 out of 5
5 out of 5
Location: LEXINGTON, KY
2009 KX250F
" BEST PURCHASE EVER MADE! THROTTLE=AWESOME BIKE=AWESOME POWER=AWESOME easy INSTALL=AWSOME JETTING NOT BOTHERD=GRANDERFUL NICE BOYESEN FINISH=GOLDEN KX250F REVIEW= GREAT BOTTOM TO TOP END. COULD POP THE CLUTCH WITH OUT GIVING THROTTLE AND NOT START THE BIKE. YOU CAN TELL ITS INTAKE!!!!!!!!!!!!!!!!!!!!! BEST PURCHASE EVER MADE FOR A BIKE LIKE THE 2009 KX250f! "
Overall:
4 out of 5
4 out of 5
Location: Redding, Ca
Good purchase
" This accelerator pump is a good buy. For the Crf 250 it takes out most of the bog and gives it a more bottom end. It is easy to install. "
Overall:
4 out of 5
4 out of 5
Location: San Jose, CA
Decent Buy
" I just installed it on my '05 yfz450 in conjunction with the power now kit and it completely eliminated the bog and basically flattened out the power band; I felt just an ultra smooth acceleration through all of the gears. "
Overall:
5 out of 5
5 out of 5
Location: destin, fl
GET THIS
" Bog is gone.. completely GONE. check the diaphragm inside the accel pump when you install.. since you'll probably have the carb off, go ahead and clean the carb out.. when you ride next, you'll have a responsive, throttle happy bike. "
Overall:
5 out of 5
5 out of 5
Location: kunkletown, PA
worth every penny
" i have one of these on my bike and nothing touches it out of the hole or on the track it might be just me =] but seriously i did feel a difference on the bottom end "
Overall:
1 out of 5
1 out of 5
Location: Southampton, MA
ORDER ONE NOW!
" completely eliminated the bog off the low RPM's of my YZ250F. very happy with it! "
Overall:
5 out of 5
5 out of 5
Location: Bakersfield, Ca.
2007 WR450 - Stock Jetting
" Only the 1st ride, but a major difference in the low end. Hesitation and bog - gone. Bike also starts way easier. However, it only works in conjunction with a proper fuel screw setting, and the accelerator pump timing screw set correctly. Boyesen provides directions on both, you just need to take the extra steps to make sure it's done right. "
Overall:
5 out of 5
5 out of 5
Location: Willcox, AZ
Awesome product
" I was having a horrible time with the low end bog on my 2006 CRF450X...until I bought this product. I put on the quickshot 2 and a Powernow, and my bike runs totally different now. Has smooth acceleration all that way through the powerband. It doesn't feel like it added any power, but how smooth it made the bike accelerate is worth every penny. "
Overall:
5 out of 5
5 out of 5
Location: Lubbock Tx
boysen quickshot
" Fantastic product. I immediately noticed a dramatic difference in throttle response over stock on my 06 CRF450. It almost eliminated all of the bog that was there when i would hammer the throttle. definately worth the money, a buddy of mine has an 06 kx450f and with the combination of this and an fmf pipe he pretty much has absolutey zero bog. his bike is a beast. i prefer mine though its much more easier to ride and control. "
Overall:
5 out of 5
5 out of 5
Location: Saltillo, MS
Great Response
" Took almost all the bog out. Solved the rest with jetting. Starts easier. Less stalling. Snappier throttle response. Totally worth it. Buy it! "
Overall:
4 out of 5
4 out of 5
Location: scottsdale AZ
Install
" the installation isnt as easy as you may hear i have a trx 450r and you have to completely remove carb, adjust the timing to .100 and the screws are vey easy to strip i took it to dealer after realizing the smart but expensive route to go was through dealer install if your not the greatest mechanically inclined peron to remove a carb smartly go to dealer... "
Overall:
4 out of 5
4 out of 5
Location: Lockport, NY
good part
" Nice product looks good and is solid but its pricey. It helped my 250f, gave it more bottom end power and is snappier. For what little it does its not worth the money. Start elsewhere when putting mods on your bike make this a last resort. There's not much of a difference between stock and this product. "
Overall:
5 out of 5
5 out of 5
Location: Eugene, OR
UNBELIEVABLE
" I installed this on my bike and it is the best money i have ever spend. Be careful with the throttle cuz it will set you back in your seat. The throttle response is PERFECTLY crisp with no hesitation or bog at all. Best performance mod you could make. Get it, you wont be sorry. "
Overall:
5 out of 5
5 out of 5
Location: Not Available
QS2 for YFZ450
" The instal was easy, quick bolt on and then adjust 1 screw in the carb and your ready to go. I noticed more low end response with the ability to lug up hills better in slow conditions. A friend of mine races and noticed a huge difference from my quad to his 07 YFZ 450 with a pipe. Mine is stock other than this 1 mod. Works if you know how to read instructions. "
Overall:
3 out of 5
3 out of 5
Location: Vermont
Better Description
" When i first put this on my 06 crf250r it actually made the bike bog worse then after calling boyesen found that i need to do OTHER stuff to actually make it run better...dang-IT "
Overall:
5 out of 5
5 out of 5
Location: Weatherford, TX
Hold on tight... You'll notice a difference!
" I couldn't believe how much better my bike ran after installing the QS2! Loads of power, and better response. I consider the QS2 the best upgrade I've ever installed, and would recommend it to anyone. "
Overall:
4 out of 5
4 out of 5
Location: Not Available
It isnt worth the money
" I got this for my 06 crf250r and it didnt fix the bog problem that much. It looks nice and was eazy to put on but agian it did not fix MY problem. I land after a jump and it bogs when i land still. "
Overall:
5 out of 5
5 out of 5
Location: Prosser, WA
Must Have Mod
" I put this on my yz250f and it got rid of the hiccups and hesitation. the bike runs much better in low rpms and has more low-end power "
Overall:
4 out of 5
4 out of 5
Location: Not Available
" Good part, Easy to install on the carb. but it still is a little pricey. "
Overall:
3 out of 5
3 out of 5
Location: md
bad bog
" Good product, though I really didn't notice the difference between the 1st and 2nd one. A tad on the pricey side for what the results it yields. "
How easy is it to install
Asked by Rideblue
I personally installed one on my bike. I was able to remove the float bowl without removing the carb from the motor. If you can't access the bottom of the carb on the motor than yes you will need to remove it. It makes it a lot easier to install this with just the float bowl off.
Answered by james718
Is this better than the power now or should i get both
Asked by Rideblue
The Boyesen Quick Shot 2 and the Power Now do completely different things. So, you can't really say one is better than the other. I do know that the Boyesen Quick Shot will be the easiest and most beneficial modification you can do to any 4stroke. Installing both of these units will most likely increase the throttle response and help eliminate the low end bog.
Answered by james718
would this be the best thing 2 buy 2 take the bog out of my 250 rm-z 2007
Asked by adam55, honea path
It's just one of the better things to do as far as simple bolt ons. So it should definitely help
Answered by Drewski, Portland, OR
What all do you have to do to install and make the bike run good?
Asked by born2race
I installed on my bike and didn't have to do any adjustments to anything. Just install and go ride. Yes, instructions are included.
Answered by james718
why does the one i got in the mail today look different than the one on the web page.. the bottom doesnt come to a nipple shape its just flat on botto
Asked by will222222
We use general product pictures to give you an idea of what the products looks like.
Answered by Drewski, Portland, OR
When installed do you have to change jet settings?
Asked by crozman
You might want to double check it just to be on the safe side. Normally the changes will be pretty minimal as far as jetting goes.
Answered by Drewski, Por+land
Why can't I purchase a QS2 for my 2008 CRF250
Asked by ChuckD
The Honda CRF250R '08 uses a different Boyesen Accelerator Pump Cover, called the Check Valve Model. We are in the process of figuring out why this will not come up on the website. If you are in need of the ASAP, you can give us a call and we can place the order for you on the phone. We apologize for the inconvenience, and will have this issue resolved soon.
Answered by james718
How is it on the higher rpm's
Asked by Shorty99, Davenport,IA
It's smooth in the high RPMS but you will notice most of your gains in the low range.
Answered by Drewski, Por+land
Does the quickshot come with the gaskets seals and diaphram?
Asked by Fabricator450, Utah
No the diaphragm will not be included or the o-ring seal
Answered by james718
is this product hard to install?
Asked by Wixom
This would be on the more difficult side. The directions that come with this part are very specific. Here's a little tip though, I don't think the instructions say this, but remove the whole float bowl from the carb, this will make the installation a lot easier. The hardest part with this job is getting the carb off or turning it sideways to get to the screws holding the bowl on.
Answered by james718

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