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Belted Bagger | Primo Brute IV 2-inch Touring Beltdrive Install

Tech

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Primo Brute Iv 2 Inch Touring Beltdrive Install Cover Spread
Primo Brute Iv 2 Inch Touring Beltdrive Install Cover Spread

In Depth
After we installed our remanufactured H-D Evolution motor and Primo six-speed transmission into our project '89 FLHS, we were looking to upgrade our primary drive. Wanting a smooth running primary with no chance of oil leakage, our sights were set on an open beltdrive. Plus, we liked the sound of that "rattling" dry clutch our choppers have.

After some searching, we found that few companies were making bagger beltdrives thin enough to use the original floorboard mounts, but called our friends at Primo to see what they had. To our joy, we found out that Primo had just released its 2-inch Bagger beltdrive. Dubbed the Brute IV Touring beltdrive, this system comes with everything needed to convert the OEM chaindrive primary to an open belt. This made-in-the-USA kit comes complete with a severe duty 8mm drivebelt, 6061 forged aluminum pulleys, a starter jackshaft assembly, a CNC-machined motor plate with built-in heel/toe shaft, an outer center guard, and all needed hardware. The kit also comes with Primo's stellar Pro Clutch setup, which has an increased clutch area and uses a single-diaphragm-type spring in place of the standard wound units for better engagement.

Since our bike was already sitting at Anaheim/Fullerton Harley-Davidson we hustled our new beltdrive over there and strong-armed one of our favorite H-D techs, Kevin, to install it while we shot some photos, so you can see how it was done.

  • Primo Brute Iv 2 Inch Touring Beltdrive Install 1
    01. Primo provides everything needed to install the Brute IV Touring Belt Drive in tidy packaging with concise directions.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 1
    01. Primo provides everything needed to install the Brute IV Touring Belt Drive in tidy p
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 2
    02. Kevin started by installing the stator rotor cover and provided spacer along with the shift arm.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 2
    02. Kevin started by installing the stator rotor cover and provided spacer along with the
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 3
    03. The shifter shaft support was installed onto the Primo one-piece billet motor plate.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 3
    03. The shifter shaft support was installed onto the Primo one-piece billet motor plate.
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 4
    04. The motor plate was then mounted to the H-D Evolution Engine and Primo six-speed transmission and torqued to factory specs.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 4
    04. The motor plate was then mounted to the H-D Evolution Engine and Primo six-speed tran
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 5
    05. Since the whole driveline was new and we didn't want any weak links, we installed a new 1.7kw Monster-Torque starter from Rivera Primo.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 5
    05. Since the whole driveline was new and we didn't want any weak links, we installed a n
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 6
    06. The Primo-supplied starter jackshaft assembly was installed and tightened down.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 6
    06. The Primo-supplied starter jackshaft assembly was installed and tightened down.
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 7
    07. A chrome stator rotor cover was fitted to the engine's drive crankshaft..
    Primo Brute Iv 2 Inch Touring Beltdrive Install 7
    07. A chrome stator rotor cover was fitted to the engine's drive crankshaft..
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 8
    08. Before the pulleys were tightened down with thread locker, Kevin first checked for proper alignment. He installed the rear pulley followed by...
    Primo Brute Iv 2 Inch Touring Beltdrive Install 8
    08. Before the pulleys were tightened down with thread locker, Kevin first checked for pr
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 9
    09. ...the front pulley, and used a straight edge ruler to make sure they were in alignment for proper belt tracking.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 9
    09. ...the front pulley, and used a straight edge ruler to make sure they were in alignme
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