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Honda CRF250F
December 4, 2018 version

Click pictures to  supersize.


Honda announced the new 2019 CRF250F in early November, 2018. Details on the  Honda CRF250F web page.

Features and Benefits


Let's have a look at this new beauty...
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The Brazilian home model has a headlight, and a small instrument panel hidden behind it. busy

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ThumperTalk inmate 'tatau' from Brazil posted a very informative video on ThumperTalk where he showed the 250F completely disassembled. He showed the cylinder head and cam and discussed various features.  CRF250F how its made
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Some of his comments:

"Rear shock is locked like in the 230. I had to drill it to remove nitro and then dissasemble it. But the internal valve and shims stack is much better than 230."

"Head gasket is multiple layered steel."

"Dog bone not aluminum, only the swingarm is."

"250F steel chassis is 5.3 lbs heavier than 230 chassis.
250F engine is 6.6 lbs heavier than 230 engine.
I was suprised to find out 250F steel gas tank (without gas pump) is 1.1 lighter than 230 plastic tank."


Other ThumperTalk threads:

2019 Crf250f new model!!     facts on the new CRF250f

 

ADVrider thread:

New, FI, Air Cooled Honda CRF250F

 

Race in Brazil - CRF250F wins the 5th Challenge Take Off driver Rodrigo Cavalini


Comparo - CRF250F vs CRF230F

 

CRF250F 2019 (from Honda web page)

CRF230F (from Honda Service Manual)

Engine 249cc air-cooled single-cylinder four-stroke 223cc air-cooled single-cylinder four-stroke with electric starting
Bore and stroke 71.0 x 63.0mm 65.5 x 66.2mm
Compression ratio 9.6:1 9.0:1
Valve Train SOHC; four-valve SOHC; two-valve
Cam   Intake opens at 1mm lift - 10° BTDC
Intake closes at 1mm lift - 40° ABDC
Exhaust opens at 1mm lift - 35° BBDC
Exhaust closes at 1mm lift - 10° ATDC
Engine dry weight   68.8 lbs
Air filter   Oiled polyurethane foam
Induction Fuel-injection, 34mm throttle bore Carburetor, 28mm piston-valve, 42 pilot, 102 main
Transmission 5-speeds 6-speeds, primary reduction 3.090 (68/22)
1st thru 6th ratios   2.769  1.941  1.450  1.148  0.960  0.812
1st thru 6th internal gears   36/13  33/17  29/20  31/27  24/25  26/32
Final drive #520 O-ring sealed chain, 13/50T (3.846) #520 O-ring sealed chain, 13/50T (3.846)
Starting system Electric starter motor Electric starter motor
Ignition Full Transistorized CDI solid-state digital
Charging system   Single phase output alternator
Regulator/rectifier   SCR shorted single phase, half-wave rectification
Spark plug and gap   NGK DPR8EA-9   .8 - .9mm (.03 - .04") gap
Front suspension 41mm telescopic fork; 8.5" travel 37mm leading-axle Showa fork, 8.5" travel
Rear suspension Pro-Link Showa shock with spring-preload adjustability, 9.1" travel Pro-Link Showa shock with spring-preload adjustability, 9.1" travel
Front brake Single 240mm disc Single 240mm disc
Rear brake Single 220mm disc Drum
Front tire 80/100-21 80/100-21
Rear tire 100/100-18 100/100-18
Rake (Castor) 26.5° 26° 45´
Trail 4.0" 4.4"
Wheelbase 55.9" 54.0"
Seat height 34.8"
 
34.3" - '03-'07
34.6" - after '07
Ground clearance 11.3" 12.0"
Curb weight * 265 lbs
 
 
250.2 lbs - '03-'07
248.5 lbs - '08-'14
249 lbs - after '14
Dry weight   233 lbs (weighed by me)
Fuel capacity 1.6 gallons, metal tank
 
2.17 gallons, including 0.4 gallon reserve - '03-'07
1.85 gallons, including 0.34 gallon reserve - after '07
Color Red Red
Emissions Meets California Air Resources Board (CARB)
and EPA off-road emissions standards.
Meets California Air Resources Board (CARB)
and EPA off-road emissions standards.
     
     
* Curb Weight - includes all standard equipment, required fluids and a full tank of fuel-ready to ride.


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