Forums
New posts
Search forums
Members
Current visitors
New profile posts
Search profile posts
What's new
New posts
New profile posts
Latest activity
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Everything Dirt Bike
Make / Model Specific
Honda
Cr250r Model Changes:1998-2006
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="onefasthonda" data-source="post: 20589" data-attributes="member: 378"><p>1999</p><p></p><p>NEW FOR 1999:</p><p>All-new six-petal reed valve improves throttle response and power delivery. </p><p>Significant cylinder port redesign adds low-end and mid-range power. All ports are lowered 0.2mm, with extensive reshaping of exhaust sub-ports and intake ports. </p><p>New exhaust pipe dimensions and porting changes maintain optimum power delivery. </p><p>New 38mm flat-slide Keihen carburetor (no power jet control circuit) incorporates a unique dual-taper needle for precise fuel/air metering and a simpler, straighter slow jet circuit for better throttle response. </p><p>Piston durability is improved by increasing thickness of the upper ring land. </p><p>Redesigned cylinder head combustion area. </p><p>New ignition CPU utilizes a 16-bit processor for faster data calculation and more accurate ignition timing for the solid-state 3-D map-type digital ignition. </p><p>Front fork refinements include new damping force rates; a stiffer (.42) spring rate; redesigned, low-friction oil seal lip; and a more rigid stanchion tube with an internal shape change to reduce side-load friction. Additional changes to the top spring rate (now 1.9) and air pressure ratio, together with a new two-piece piston bushing. </p><p>New, 1mm-shorter shock features new damping force rates for a lower seat height, relaxed caster angle and 4mm more trail. </p><p>Revised rear linkage ratio with new shock settings. </p><p>Redesigned, lighter chain guide and lower chain roller. </p><p>Reshaped, rubber-mounted handlebar. </p><p>Seat foam density reduced. </p><p></p><p>ENGINE:</p><p>3-D map-type digital electronic ignition system monitors engine speed to provide optimal timing. </p><p></p><p>CHASSIS / SUSPENSION:</p><p>Lightweight 47mm inverted Showa cartridge fork features 12.4 inches of travel, and 16-position rebound damping adjustability in addition to 16 positions of compression damping adjustability. </p><p>Pro-Link® single-shock rear suspension system features a fully adjustable 46mm Showa rear damper and 12.7 inches of wheel travel. Separate low-speed and high-speed compression damping adjusters. </p><p></p><p>SPECIFICATIONS:</p><p>Model: CR250R</p><p>Engine Type: 249cc liquid-cooled single-cylinder two-stroke with power-port system</p><p>Bore and Stroke: 66.4mm x 72mm</p><p>Compression Ratio: 8.7:1</p><p>Induction: Six-petal reed valve</p><p>Carburetion: 38mm flat-slide</p><p>Ignition: Solid-state 3-D map-type digital ignition with electronic advance</p><p>Transmission: Close-ratio five-speed</p><p>Final Drive: #520 chain; 13T/50T</p><p>Suspension Front: 47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel</p><p>Suspension Rear: Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns); 12.7 inches travel</p><p>Brakes Front: Single 240mm disc with twin-piston caliper</p><p>Brakes Rear: Single 240mm disc</p><p>Tires Front: 80/100-21</p><p>Tires Rear: 110/90-19</p><p>Wheelbase: 58.3 inches</p><p>Rake (Caster Angle): 27.32°</p><p>Trail: 113.4mm (4.46 inches)</p><p>Seat Height: 37.2 inches</p><p>Ground Clearance: 13.2 inches</p><p>Dry Weight: 213.8 pounds</p><p>Fuel Capacity: 2.0 gallons</p></blockquote><p></p>
[QUOTE="onefasthonda, post: 20589, member: 378"] 1999 NEW FOR 1999: All-new six-petal reed valve improves throttle response and power delivery. Significant cylinder port redesign adds low-end and mid-range power. All ports are lowered 0.2mm, with extensive reshaping of exhaust sub-ports and intake ports. New exhaust pipe dimensions and porting changes maintain optimum power delivery. New 38mm flat-slide Keihen carburetor (no power jet control circuit) incorporates a unique dual-taper needle for precise fuel/air metering and a simpler, straighter slow jet circuit for better throttle response. Piston durability is improved by increasing thickness of the upper ring land. Redesigned cylinder head combustion area. New ignition CPU utilizes a 16-bit processor for faster data calculation and more accurate ignition timing for the solid-state 3-D map-type digital ignition. Front fork refinements include new damping force rates; a stiffer (.42) spring rate; redesigned, low-friction oil seal lip; and a more rigid stanchion tube with an internal shape change to reduce side-load friction. Additional changes to the top spring rate (now 1.9) and air pressure ratio, together with a new two-piece piston bushing. New, 1mm-shorter shock features new damping force rates for a lower seat height, relaxed caster angle and 4mm more trail. Revised rear linkage ratio with new shock settings. Redesigned, lighter chain guide and lower chain roller. Reshaped, rubber-mounted handlebar. Seat foam density reduced. ENGINE: 3-D map-type digital electronic ignition system monitors engine speed to provide optimal timing. CHASSIS / SUSPENSION: Lightweight 47mm inverted Showa cartridge fork features 12.4 inches of travel, and 16-position rebound damping adjustability in addition to 16 positions of compression damping adjustability. Pro-Link® single-shock rear suspension system features a fully adjustable 46mm Showa rear damper and 12.7 inches of wheel travel. Separate low-speed and high-speed compression damping adjusters. SPECIFICATIONS: Model: CR250R Engine Type: 249cc liquid-cooled single-cylinder two-stroke with power-port system Bore and Stroke: 66.4mm x 72mm Compression Ratio: 8.7:1 Induction: Six-petal reed valve Carburetion: 38mm flat-slide Ignition: Solid-state 3-D map-type digital ignition with electronic advance Transmission: Close-ratio five-speed Final Drive: #520 chain; 13T/50T Suspension Front: 47mm inverted Showa cartridge fork with 16-position rebound and 16-position compression damping adjustability; 12.4 inches travel Suspension Rear: Pro-Link Showa single shock with spring preload, 17-position rebound damping adjustability, and compression damping adjustment separated into low-speed (13 positions) and high-speed (3.5 turns); 12.7 inches travel Brakes Front: Single 240mm disc with twin-piston caliper Brakes Rear: Single 240mm disc Tires Front: 80/100-21 Tires Rear: 110/90-19 Wheelbase: 58.3 inches Rake (Caster Angle): 27.32° Trail: 113.4mm (4.46 inches) Seat Height: 37.2 inches Ground Clearance: 13.2 inches Dry Weight: 213.8 pounds Fuel Capacity: 2.0 gallons [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Everything Dirt Bike
Make / Model Specific
Honda
Cr250r Model Changes:1998-2006
Top