Boyesen Quick Start Kit

$156.99 (13% off)
3.30 out of 5 stars
Fitment Expert:
Dirt Bike Dirt Bike ATV Make Year Model
Boyesen Quick Start Kit
Boyesen Quick Start Kit
  • Description
  • Reviews (3)
  • Q&A (8)
  • Fitment
  • Integrated Hot Start Assist eliminates problem 4-stroke hot start procedure.
  • Tunable leak jet circuit maximizes volume of fuel and duratiuon of fuel spray for any condition.
  • Patented design stops bogging and improves throttle response.
  • Improved low end performance.
  • Investment cast and finished to precise
  • High volume vertical check valve located in the QS3 for precise, consistent fuel metering.
  • Fits All Keihin FCR carbs.
  • Simple bolt-on.
3.3 out of 5 stars (3)
3.3 out of 5 stars
5 star   1
4 star   1
3 star 0
2 star 0
1 star   1
See Terms and Conditions
1-3 of 3
Overall 5 out of 5 stars
Location: nampa,ID
Dont go without qs3

Awsome product, installed on my 05 crf250 to get rid of the low end bog. not only does it solve the bog issue it starts much easier, and the throttle response is amazing. I dont think it gave the bike any more power it just made what it already had much smoother and easier to accelerate out of corners. Dont try and tune your carb to get rid of the bog, GO BUY THE QS3. Every bike is different so your qs3 might need to be adjusted a little different than the instructions recomend but they will get you very close to perfect.

Overall 4 out of 5 stars
Location: San Diego, Ca
Great product

This has turned out to be an excellent product! I installed the qs3 on a 2002 yz250f and it fit great. The cable was plenty long enough and came with clear instructions. The bike now has almost instant throttle response and no bog whatsoever. I installed it at the same time as an aftermarket jet kit, so getting the exact jetting and carb tuning took a little time, but this bike has never run so good.
The product gets 4 out of 5 stars because as good as The QuickStart Is, boyensen did not include a new pump diaphram or o-rings in the kit, so you are forced to track them down and order them seperately.

Overall 1 out of 5 stars
Location: Denver, CO
Did not work

The Quick Start Kit does not work in a 2009 YZ450F. The cable is too short and it pulls the hot start ever so slightly from the bottom of the Quick Shot 3. The throttle response when released idles high and then idles down a few seconds later. When trying to jet for this product I am unable to eliminate the back fire. When replaced with just the Quick Shot 3 the bike runs perfect.

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Total Questions (8)
Questions with answers:
Questions without answers:
1-8 of 8
KPCRF 4 months 3 days ago Location: Orange County, CA, USA
This was already installed on the CRF450R I bought used but how do I replace the cable? Do I have to buy the entire Quick Start unit again?
The OEM hot-start cable is too short.
Expert MotoSport Staff
2 months 28 days ago
A replacement hot start cable for the Boyesen QuickStart can be purchased separately. The replacement hot start cable to fit a Honda bike, is part # APC-QC1. If the part is available through one of our suppliers, we would be happy to order it for you. Please contact one of our sales professionals to inquire about special orders and availability. Dirt Bike / ATV: 1-888-676-8853
450crfbrap Over 9 months ago
Can I run the Boyeson QuickStart with R&D powerbowl 2 on my 2005 Crf 450?
Top 1 Contributor
Over 9 months ago
No. The R&D power bowl uses special internal features that will not be compatible with the Boyesen quick start and shot products.
Matt Over 10 months ago Location: Pennsylvania, USA
Will this work on my quad?
I have a 07 outlaw Ktm 525 motor it has a fcr carb witch has started hard when warm from new it does not have a factory hot start set up will this set up work on my machine
Top 1 Contributor
Over 10 months ago
No. You must have a factory hotstart system on the carb for this product to work.
chris 1 year 7 months ago Location: nj
What to do with top cable and inlet?
crf250r honda 2007 installing boysen quick shot
MotoSport Staff Expert
1 year 7 months ago Location: Portland, OR, USA
Installation of this kit would required removal of the hot-start cable on your bike as the cable for this would replace the hot-start cable. Additionally, there is a plug that has to be installed to block off the stock hot start’s air leak.
steches 2 years 2 months ago
Will i still need the cable and lever assembly?
MotoSport Staff
2 years 2 months ago Location: Portland, OR, USA
Yes, you still use the hot start lever and this comes with a new cable.
cando Over 5 years ago
Will this fit on my CRF 250 stock carb.?
will this fit on my CRF 250 stock carb.
MotoSport Staff
Over 5 years ago Location: P+RTLAND
Yes this will fit your stock carb.
Vern59 Over 5 years ago Location: Detroit
How much low end difference does it make and does it also replace the hot start?
MotoSport Staff
Over 5 years ago Location: P+RTLAND
Boysen hasn't release the exact gains to the bottom end. It will definitely take the low end bog out and give you a snappier throttle response. It replaces the stock hot start assembly at the carb.
beavis258 Over 6 years ago
Is the quick start capadable with the quick shot 2?
MotoSport Staff
Over 6 years ago Location: P+RTLAND
Yes, they can be ran together.
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