Yokomo YZ-834B

Wonder Dog Fighter SE

Yokomo YZ-834B "Dog Fighter" is a one-tenth-scale electric-powered 4WD radio-controlled vehicle made by Yokomo. The first version was introduced in 1983 for off-road racing.

Year	Model	Details	Known issues
1983	Dog Fighter 834B (not pictured) Rare original release model with one shock absorber each end, exposed alloy roll bar, yellow wheels and black body pan.	Front mono alloy shock Rear mono alloy shock Chain drive 4WD system Front one-way axles with solid center shaft Large bumper, extends to middle of front wheels Rear ball differential Rear anti-roll bar Dog Fighter lexan body with enclosed shocks and exposed alu roll bar 1.75-inch yellow wheels and Dunlop engraved spike tires 05R stock motor for 8 minute race Mechanical speed controller Forward/Break. and with a relay for reverse original cost 19,800 Yen Pristine examples now changing hands for UK£500+	The first version of the nylon gears weren't sturdy enough Motor plate was weak and prone to bending if misused. This problem has never been fixed through the last 834B model
1985	Wonder Dog Fighter (could be late 1984)	Thicker chassis with small bumper Upgraded front shock Rear dual shock Torque limiter Improved gears (they made new gears in 1984) Longer front lower arms Reinforced rear swing arms New Wonder Dog Fighter body based on Bolink Funco body	New rear shocks leak
1985	Wonder Dog Fighter Limited Edition	360SX Twin Turbo motor for 6 minute race 28,000 Yen
1986	Wonder Dog Fighter SE - 834B SE	Super Aero wheels (aka tornado wheels) Hot Laps R-5 2" tires 360SX Twin Turbo motor for 6-minute race 29,800 Yen
1986	Dog Fighter RPS SE	Fiberglass Chassis with small black bumper New body and new roll bar Improved shocks 05R stock motor New RPS tires made by Pro-line with 1.75" yellow wheels SE10 Standard Kit SE11 Deluxe Kit (with NMB bearings)

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