Boyesen
QuickShot Accelerator Pump Cover
As more and more riders make the switch from two-stroke machines to four-stroke ones, there is an equal number of new performance parts flooding the thumper market. Some work well, some don't; and others-such as the Boyesen QuickShot accelerator pump cover-are simply amazing. A small, magnesium-colored piece about the size of a quarter, the QuickShot doesn't appear to be much at first glance. Thanks to an additional hole near the well of the accelerator pump, the QuickShot eliminates any air buildup in the pump chamber, squirts out more fuel-at a much higher speed than stock-when the throttle is first cracked, giving your bike much stronger off-idle throttle response.
When installed on our Honda CRF450R test bike, the QuickShot provided immediately noticeable gains at the track. Tight corners, whoops and supercross-style combination jumps are where this part really shines-pretty much anywhere that requires a quick turn of the throttle. The distinct difference with the cover installed is a significant boost in snap or a much cleaner and consistent beginning twist of the throttle. This inspired a lot of confidence, especially when we jumped the 450. These benefits are definitely not limited to motocross, though; amplified off-idle throttle action is invaluable in the woods! We have tried it on a few other bikes-a Yamaha YZ250F and a Husky TC450, both with very finicky jetting on the low end-and the QuickShot cleaned them right up like getting the perfect needle. It is especially noticeable for riders who whack their throttle open quickly because it makes sure the necessary boost of fuel is not delayed.
Installing the QuickShot requires a lot of elbow room around the carburetor, but overall, it is a fairly simple task once access is gained. There are some recommended pump arm adjustments (special tool supplied) that can further dial the throttle response, and with the QuickShot the improvement is even more dramatic. The cover does not take up any additional space on the carburetor. Currently available for the Keihin FCR carb, the QuickShot features solid construction and a coated finish for looks.
A well-constructed, durable modification with no moving parts and decent installation, QuickShot requires no maintenance once installed and provides strong improvements by sharpening your thumper (even noticeable on an already crisp-running Honda CRF). What's not to like about that? -Chris Denison
| HARD PARTS | 93 |
| INSTALLATION | 15/20 |
| FUNCTION | 48/50 |
| DURABILITY | 10/10 |
| DESIGN | 10/10 |
| PRICE | 10/10 |
WWW.BOYESEN.COM
8OO/441-1177 |
Motion Pro
T-6 Chain Tool
Motion Pro offers some excellent chain-breaking and press tools. Now it has a smaller aluminum chain breaker and press kit with a carrying case. The case easily fits in a fanny pack, and it has everything you need to separate master or normal links or connect a 520 O-ring chain and some 525 chains. I've used a chain breaker to remove a master link but ended up pushing the pin out of the back plate, so the removal press is a welcome tool.
Of course, it handles breaking chains with ease. Since the body of the tool and many of the press parts are aluminum, the kit (6 ounces) and its zipper pouch (2 ounces) are light and compact. There is plenty of room in the pouch for a few links of chain and master links. This $59.90 chain tool is now a permanent and welcome part of my track tool set for moto as well as a portion of my fanny pack for when off-roading. -Karel Kramer