When did the Honda trx400ex come out?
1998: Honda introduces the ’99 TRX400EX with a price of $5495. It wins the Baja 1000. In motocross and GNCC racing, however, older two-strokes continue to dominate. 2003: After watching the Honda 400 dominate sales charts for four years, Suzuki answers with its own sport quad. The LTZ400Z Quadrunner is released.
Why was the Honda 400 a game changer?
From that point on, the sport would never be the same. The Honda 400 was a game changer on several levels. First, it was the first sport ATV in 10 years. Throughout the ’90s, most new ATVs came with racks, while racers continued to recycle old two-strokes from the glory days.
Can you put + 1mm valves on a 400ex?
The 5 angle valve job really shines on big valves as the seat diameter is opened up all the way into the aluminum casting, blending to the port work. Adding +1mm valves to a modified engine package helps the mid to top-end horsepower. Most aftermarket hi compression pistons are NOT clearanced for +1mm valves, on the 400ex.
What kind of parts do I need for a trx400ex?
TRX400EX Hot Rods Heavy Duty Complete Bottom End Kit – Available in Stock Stroke or +4mm Stroker (*Stroker Crank requires special piston). This kit includes main bearings, seals, gaskets, and crank. TRX400EX Web Camshaft – Available in MX, TT/Drag, and Dune build.
What makes a Honda trx400ex so fast?
The 400 had the benefit of 10 years of aftermarket development. The stock 250R frames had long since been retired as suspension and geometry advanced. According to Bruce Ogilvie, who headed the EX testing team for Honda, the rigidity of the swingarm made the 400 much faster in whoops compared to its two-stroke ancestor.
From that point on, the sport would never be the same. The Honda 400 was a game changer on several levels. First, it was the first sport ATV in 10 years. Throughout the ’90s, most new ATVs came with racks, while racers continued to recycle old two-strokes from the glory days.
When did the Suzuki trx400ex QuadRunner come out?
2003: After watching the Honda 400 dominate sales charts for four years, Suzuki answers with its own sport quad. The LTZ400Z Quadrunner is released. Like Honda, Suzuki used its 400 motorcycle powerplant as the core. Unlike Honda, Suzuki wins a national motocross title.
The 5 angle valve job really shines on big valves as the seat diameter is opened up all the way into the aluminum casting, blending to the port work. Adding +1mm valves to a modified engine package helps the mid to top-end horsepower. Most aftermarket hi compression pistons are NOT clearanced for +1mm valves, on the 400ex.