RMStator V-twin Line- Regulators
Best known in the street bike and offroad / dirt bike markets, RMStator has a new line of OEM replacement charging solutions for V-twin applications. Owned and operated by Founder and President Roger Masson, this is his factory ' s first ' product specific ' entry into hugely demanding electrical component market for Big Inch baggers, cruisers, and tourers with complex modern electrical systems. The line has launched with three key components- MOSFET Voltage Regulators, a direct fit OEM replacement, plug-and-play Stator design and Alternator Rotors with high grade steel capping. Metal-Oxide-Semiconductor Field-Effect Transistor voltage regulators( MOSFET- we love a good acronym here at AMD!) run cooler than OEM designs, and that is no different in the Harley market. They feature an upgraded Heat Sink and better cooling translates to improved charging efficiency. " Using only premium components, our tested, tested and re-tested regulator design exceeds the performance and durability of OEM diode regulators
Feuling Parts says it has taken the tried and trusted Twin Cam Quick Install Pushrod " and added knurling and an indicator dot to make install a breeze. This is the strongest ' Quick ' install pushrod on the market." TC Quick Install Adjustable pushrods have a 3 / 8 " OD tube and 0.134 " wall thickness and come in sets of four. They are individual length exhaust and Intake pushrods and install without the removal of rocker covers – they require quick install tubes- see Feuling # 4095 for tubes only or Feuling # 4097 for pushrod and tube kit Luke Leatherman says that " the strength and rigidity of this quick install pushrod is second only to heavy-duty one-piece pushrods. Our tube material starts out as 7 / 16 " rod OD, it then gets turned down to 3 / 8 " OD leaving heavy duty 7 / 16 " – 20 threads for the base and jam nut. " The jam nut slides up the pushrod; the base then loosens up into the pushrod to shorten length and allow quick install access." Feuling notes that correct pushrod / lifter adjustment requires starting with fully
and as a direct fit, easy install replacement for the original unit," says Chief Engineer Evan Grist. " Changing out a worn, damaged, or just tired regulator extends battery life, protects the electrical system, and prevents expensive breakdowns. A failing regulator that is overdue for replacement can damage the stator, which is an expensive repair on a V-twin engine. The regulator replacement is a simple external bolt on, Plug & Play repair that is easy to do, a good value, and cheap insurance against future problems."
RM’ s V-twin Stator design is an OEM fit, enhanced reliability, plug and play direct replacement
Performance and the Art of Pushrod Installation
pumped-up lifters. " When trouble shooting noisy valve-train, lifter adjustment should start with a fully pumped-up lifter, from zero lash put 0.90 "- 0.100 " of pre-load on Feuling hydraulic lifters." It could also be that lifter to lifter bore clearance is out of spec and Feuling recommends a
RMSTATOR
Coaticook, Quebec, CANADA Tel: 877 838 1399 www. rmstator. com
V-twin Alternator Rotors – built to OEM specifications.
clearance of 0.001 "- 0.0015 " for proper oil psi at lifter. Other factors could include pushrods flexing and hitting pushrod tubes(" look for a shiny ring witness mark around the pushrod normally seen up towards the cylinder head "), low oil pressure, pushrod center oil hole plugged, excessive crankshaft runout, rocker arms / bushings out of tolerance and leaky / broken piston cooling jets. Additional suggested checks could include the clearance for roller rocker arms on the underside of the rocker box covers; steep ramped camshafts causing excessive gear drive backlash or excessive crankshaft runout; tolerance on the rocker arms / bushings, valve spring clearance to lower rocker box housing and valve spring coil bind and / or valve spring harmonics – the valve spring open height should match up with camshaft peak lift.
FEULING PARTS Oceanside, California, USA Tel: 619 917 6222 sales @ feulingparts. com www. feulingparts. com
52 AMERICAN MOTORCYCLE DEALER- MAY 2026 www. AMDmag. com