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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
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 10
    10. With the pulleys lining up, Kevin then wrapped the 2-inch Kevlar reinforced belt around the pulleys and slid the pulleys onto the motor sprocket shaft and transmission main shaft and torqued them to spec.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 10
    10. With the pulleys lining up, Kevin then wrapped the 2-inch Kevlar reinforced belt arou
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 11
    11. The starter jackshaft cover was then installed.
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 12
    12. And then the Primo Pro Clutch was installed into the clutch basket.
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 13
    13. The clutch was adjusted to Primo's specifications
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 14
    14. The chrome dress-up clutch cover was installed with four buttonhead Allen bolts.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 14
    14. The chrome dress-up clutch cover was installed with four buttonhead Allen bolts.
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 15
    15. The outer center guard of the beltdrive resides on these two aluminum standoffs, which were bolted into place on the motorplate.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 15
    15. The outer center guard of the beltdrive resides on these two aluminum standoffs, whic
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 16
    16. The outer center guard was then installed with plenty of blue thread locking compound.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 16
    16. The outer center guard was then installed with plenty of blue thread locking compound
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 17
    17. The outer center guard was torqued to Primo's specifications
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 18
    18. After sliding the shifter shaft through shifter shaft support, a spacer was installed which would allow us to eliminate the heel shifter and the job was done.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 18
    18. After sliding the shifter shaft through shifter shaft support, a spacer was installed
  • Primo Brute Iv 2 Inch Touring Beltdrive Install 19
    19. And there it was, one oil-less, trouble-free way to get the engine's power to the ground and look good while doing it.
    Primo Brute Iv 2 Inch Touring Beltdrive Install 19
    19. And there it was, one oil-less, trouble-free way to get the engine's power to the gro

Sources

Harley-Davidson of Anaheim-Fullerton
(714) 871-6563 | harleyfullerton.com

Rivera Primo (800) 872-1515 | riveraprimo.com

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