ENGINE - Automatic Distributors

ENGINE
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Honda DIRT BIKE CONTINUED
HOT CAMS DIRT BIKE continued
CRF 250R 08-09 Stage 2: single-cam motor. Produces good high RPM power. Uses stock auto-decompression
mechanism. Uses stock valve springs.
Stage 2 Gold Series: Single cam engine. Improves mid and top power. Requires stiffer springs
PART # VSCRF250RKIT. Uses stock auto decompression mechanism.
CRF 250R 10-11 Single-cam motor. Low and mid RPM torque are increased. Top horsepower slightly increased over
stock. Uses stock auto-decompression mechanism. Uses stock valve springs.
Single-cam motor. Slight loss in low RPM torque, mid to top horsepower are increased. Uses stock
auto-decompression mechanism. Uses stock valve springs.
Builder Series: Single cam engine. Large increase in torque below 9500RPM, this cam is well
suited for applications with short runs between obstacles. Allows large throttle openings at low
RPM. Uses stock auto decompression mechanism. Uses stock valve spr
Builder Series: Single cam engine. Large increase in torque low to upper mid, substantial increase
in torque peak, improved top end horsepower. Uses stock auto decompression mechanism.
Requires VSK1006 springs.
Builder Series: Single cam engine. Good mid-top cam for modified engines. Uses stock auto
decompression mechanism. Uses stock valve springs.
Builder Series: Single cam engine. Good top end cam for modified engines. Uses stock auto
decompression mechanism. Uses stock valve springs.
Builder Series: Single cam engine. Good mid range cam for modified engines. Uses stock auto
decompression mechanism. Requires stiffer valve springs.
Builder Series: Single cam engine. Good mid range cam for modified engines. Uses stock auto
decompression mechanism. Requires stiffer valve springs.
Builder Series: Single cam engine. Stock type powerband with increased peak torque. Uses stock
auto decompression mechanism. Requires stiffer valve springs.
CRF 250R 10-11 Exhaust spring max lift at OE installed height 0.498” Intake spring max lift at OE installed height
0.517” Springs fit 1159-BLD, 1160-BLD, 1161-BLD, 1162-BLD, 1182-BLD, 1183-BLD, 1184-BLD
CRF 250X 04-09 Stage 1: single-cam motor. Excellent midrange and top-end power. Uses stock auto-decompression
mechanism. Uses stock valve springs.
Stage 2: single-cam motor. Excellent top-end power with great over rev. Uses stock auto-decompression
mechanism. Uses stock valve springs.
CRF 450R 02-06 Stage 1: single-cam motor. Excellent bottom-end and midrange increase. Improved throttle response.
Uses stock auto-decompression mechanism. Uses stock valve springs.
Stage 2: single-cam motor. Excellent midrange and top-end increase. Improved throttle response.
Uses stock auto-decompression mechanism. Uses stock valve springs.
Stage 3: single-cam motor. Significantly more top-end power than Stage 2. Will work well for Supermoto
and big bore/strokers. Uses stock auto-decompression mechanism. Uses stock valve springs.
CRF 450R 07 Stage 1: single-cam motor. Excellent bottom-end and midrange increase. Improved throttle response.
Uses stock auto-decompression mechanism. Uses stock valve springs.
Stage 2: single-cam motor. Excellent midrange and top-end increase. Improved throttle response.
Uses stock auto-decompression mechanism. Uses stock valve springs.
Stage 3: single-cam motor. Significantly more top-end power than Stage 2. Will work well for Supermoto
and big bore/strokers. Uses stock auto-decompression mechanism. Uses stock valve springs.
CRF 450R 08 Single cam motor: Excellent bottom-end. Improved throttle response. Uses stock auto decompression
mechanism. Uses stock valve springs.
Stage 2: single cam motor: Good midrange and top-end gain. Uses stock auto decompression
mechanism. Uses stock valve springs.
Stage 3: single cam motor: Significantly more top-end power than Stage 2. Will work well for Supermoto
and big bore/strokers. Uses stock auto decompression mechanism. Uses stock valve springs.
CRF 450R 09 Stage 1 cam: single cam motor. Improved torque below 9000rpm with improved peak horsepower
over OEM cam. Uses stock valve springs, rockers, and auto decompression mechanism.
Stage 2 cam: single cam motor. Same low end power as OEM cam up to 6,000 RPM and improved
power from 6,000 to rev limit. Uses stock valve springs, rockers, and auto decompression mechanism.
Stage 3 cam: single cam motor. Best suited for engines requiring more breathing capability. Uses
stock valve springs, rockers, and auto decompression mechanism.
Builder Series: Single cam engine. Good bottom end cam for modified engines. Can be used with
stock or aftermarket valve springs, if ignition rev limit is increased use requires spings VSK1009.
Uses stock auto decompression mechanism.
Builder Series: Single cam engine. Good midrange cam for modified engines. Can be used with
stock or aftermarket valve springs, if ignition rev limit is increased requires spings VSK1009. Uses
stock auto decompression mechanism.
Builder Series: Single cam engine. Good high RPM cam for modified engines needing high RPM
capability. Can be used with stock or aftermarket valve springs, if ignition rev limit is increased
requires spings VSK1009. Uses stock auto decom
Builder Series: Single cam engine. Good midrange cam for modified engines that are oversized.
Can be used with stock or aftermarket valve springs, if ignition rev limit is increased requires spings
VSK1009. Uses stock auto decompression
Builder Series: Single cam engine. Good top end cam for modified engines that are oversized. Can
be used with stock or aftermarket valve springs, if ignition rev limit is increased requires spings
VSK1009. Uses stock auto decompression m
Builder Series: Single cam engine. Good low RPM cam for modified engines that are oversized.
Can be used with stock or aftermarket valve springs, if ignition rev limit is increased requires spings
VSK1009. Uses stock auto decompression.
Part #
Intake
Lift
Intake
Duration
Exhaust
Lift
Exhaust
Duration
870219 8.64 254 8.97 262 269.95
870220 8.89 254 9.14 263 295.95
870221 8.1 244 8 251 269.95
870222 9.4 255 9.1 263 269.95
870223 7.62 236 7.5 246 295.95
870224 9.32 244 9.1 256 295.95
870225 9.4 255 9.4 258 295.95
870226 9.4 255 9.4 264 295.95
870227 8.64 254 9 262 269.95
870228 9.22 255 9.1 263 269.95
870229 9.32 264 9.4 264 269.95
870230 0 0 0 0 169.95
870211 8.1 244 8.1 250 269.95
870209 8.4 252 8.35 267 269.95
870231 9.6 238 8.8 270 269.95
870232 10.1 248 8.8 270 269.95
870233 10.4 254 9.1 265 269.95
870234 9.6 237.5 8.7 268.5 269.95
870235 10.1 248 8.7 268.5 269.95
870236 10.4 251.5 9.05 265 269.95
870237 9.6 238 8.8 270 269.95
870238 10.1 248 8.8 270 269.95
870239 10.4 254 9.1 265 269.95
870240 9.6 238 8.7 248 269.95
870241 10.1 248 8.7 269 269.95
870242 10.4 252 9 265 269.95
870243 9.6 238 9.27 268 295.95
870244 10.11 248 9.04 265 295.95
870245 10.39 252 8.71 269 295.95
870246 9.78 254 9.04 265 295.95
870247 9.78 254 9.27 268 295.95
870248 9.78 254 8.71 269 295.95