Home / Honda / ATC250R / Engine / Spark Plug Cap Spark Plug Cap$10.00 Non resistor spark plug cap. Spark Plug Cap quantity Add to cart Categories: ATC250R, Engine, Engine, Honda, HPI Ignitions, TRX250R Description Description Non resistor spark plug cap. Related products HondaIntake 1987-89 TRX250R Stainless Steel Intake For 1987-89 TRX250R only. ATC250RHonda TRX250R Transmission Shift Fork Kit For 86-89 TRX250R and 85-86 ATC 250R. Complete shift fork set. HondaTransmission & Clutch Hinson Works Clutch Basket for TRX250R For TRX250R ExhaustHonda TRX250R Big Bore Pipe 350D LED 350D exhaust. For use with motor sizes of 330-390 For cross country, MX and trail riding applications. Price is for the pipe only.