Barnett Scorpion Billet Belt Drive - Baggers Magazine
01. Here is the new Barnett Scorpion Billet Belt Drive with three different clutch tension spring sets, a new starter pinion gear, a main seal, 21⁄4-inch wide belt, and a belt adjuster.
02. Wink got started by draining the primary oil and removing the outer primary cover. Just to be safe the battery was disconnected to ensure no mishaps.
03. The primary chain adjuster was then removed, followed by the loosening of the clutch cable adjuster. Here the starter gear assembly was removed.
04. With an impact socket, Wink removed the clutch assembly, the front compensating sprocket along with the chain adjuster, and the chain as one.
05. The starter mounting bolts and inner primary bolts were removed along with the inner primary.
06. Wink used a race puller to remove the mainshaft race. He cleaned and inspected it before installing the new Barnett’s backing plate.
07. Here is a look at the race. Wink took some Scothbrite to clean it. You can see where he started on the left and where it still needed to be cleaned on the right.
08. Wink removed the rotor and stator to replace the mainshaft oil seal with a new one.
09. Wink placed the new backing plate on the bike lining up with both the motor and transmission. He then installed all 10 bolts and torqued to factory spec.
10. Once the backing plate was in place, Wink installed the starter jackshaft and locking nut.
11. The clutch assembly was then installed. Both the transmission mainshaft and the motor mainshaft received threadlocker before the nuts were installed and torqued to factory spec.
12. With the clutch assembly in place, Wink lined up the starter pinion gear with the starter ring gear on the clutch and made sure the two had the proper engagement. He then installed the starter jackshaft cover.
13. Wink installed the front pulley on to the compensator .
14. Wink pointed out the timing mark on the clutch basket where the pressure plate would line up to ensure that the two would be balanced.
15. Here’s the same matching mark on the inside of the pressure plate (arrow).
16. Wink lined up the two marks and installed the plate with the yellow clutch springs to start. The kit comes with three different sets. If we find that the clutch is slipping, we can swap out the springs for a heavier set.
17. Wink installed the mounting bolt for the adjuster pulley. This is done from the back and sits in a slotted grove so the belt can be adjusted.
18. Wink placed the belt around both pulleys then installed the adjuster pulley.
19. Once Wink had the belt tension set, he tightened the pulley bolt and torqued it to 150 lb-ft.
20. There you have it, the new Barnett Scorpion Billet Belt Drive installed. It’s a good-looking addition to the bike with the custom look we are going for. We’ll be bringing you the forward control install in an upcoming issue.
In this issue we are still working on customizing the Old Iron, our ’04 Road King. We want to take it from stock touring bike to over-the-top-but-not-too-crazy bagger. We thought about doing a beltdrive install on a touring bike but weren’t sure because this is not something you typically see on a touring bike. Most bagger guys want simple, clean, and quiet when it comes to the motor. But when we saw Barnett’s new Scorpion 214-inch Billet Belt Drive ($2,447 at J&P; Cycles) with an added adjuster pulley and heard that you can change the drive ratio by simply swapping out the front motor pulley, we were interested to say the least. There are five primary-drive ratios to choose from10 percent underdrive up to 12 percent overdrive. The drive ratios can be changed to help control rpm by changing the front pulley and belt.
The Barnett Scorpion Billet Belt Drive comes with the CNC-machined, black anodized, billet aluminum backing plate and includes the Scorpion clutch setup. If you are looking for something different to change the appearance of your bike, this may be it. Keep in mind with this setup you will need to swap out the floorboards for forward controls. The backing plate doesn’t have the shifter boss to use the stock setup.
We ran the bike over to Wink Eller’s shop in Orange, California, to tie up one of his lifts and install this beltdrive as we looked on and snapped photos. B
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**Wink’s Custom Cycles **
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