POWROLL PRODUCTS FOR THE HONDA CRF 230

ORDER ONLINE

Powroll

13840 Commercial Lp

Crooked River, OR

97760

Mail:

PO Box 920

Redmond OR 97756

Phone

541-923-1290

Fax

541-923-5637

Email

Powroll - 4 Stroke Performance

STOCK SPECIFICATIONS:

65.5mm BORE X 66.2mm STROKE, 9:1 COMPRESSION

FYI: These products are designed to work for the CRF230F. We have not tested anything in the CRF230L, which has a different muffler system, carburetor, head and intake manifold. These design changes may keep our 230F products from working or fitting L models.

PISTON KIT - HIGH COMPRESSION

66mm Piston 10.5 to 12.3:1 Compression

Make your sleepy CRF sit up and bark! Powroll’s super-lightweight high quality forged piston increases compression and gives the CRF awesome throttle response, better midrange and more rpm. Works best when paired with our camshaft and one of the exhaust options shown below.

INCLUDES: Piston, rings, pin, circlips, headgasket, basegasket.

REQUIRES: Boring, Rejetting. Compression over 11:1 must run race gas mix. 12.3:1 Compression may cause starter issues.

00340 H BORE KIT 66MM CRF230 -- $230.00

HARDWELD CAM

CORE CHARGE INCLUDED

Hardweld cam on stock core. The R&D department calls this the ‘Cam to end all Cams’.

More testing went into this cam than any other we’ve ever built. Midrange hesitation is an issue with most camshafts for this model, but this Powroll grind works perfectly; very smooth power at super-low rpm, a very nice wheelie-friendly midrange hit and power all the way to redline; this is a cam that does it all!

As an added bonus, this grind uses stock springs and retainers.

Can be used alone, but gives best performance with one of our piston kits.

REQUIRES: Core Exchange or Core Charge. Clearance must be checked when using OEM or other non-Powroll pistons.

12756-22756G H CAM CRF150-230 (Price incl. core crg of $75.00) -- $240.00

PLEASE READ!

Stock Honda jetting is very lean on these bikes, even stock models will benefit from rejetting.

We don't sell these parts, but you can purchase them from your local Honda dealer, or online through Service Honda.

Want better power for a stock engine? Purchase and install the jets shown, then remove the airbox snorkel and either install our Thrust Chamber or Thrust Nozzle in your stock muffler.

Even if you decide not to modify the airbox or exhaust, we still recommend richer jetting.

For Stock Engines:

• Full Power Needle Part # 16012-KPS-921

• Main Jet # 99113-GHB-1320 (high elevation)

• Main Jet # 99113-GHB-1350 (low elevation)

For Modified Engines:

• Full Power Needle Part # 16012-KPS-921

• Main Jet # 99113-GHB-1350 (high elevation, stock cam, low comp piston)

• Main Jet # 99113-GHB-1380

• Main Jet # 99113-GHB-1400 (start here for high comp piston with our cam and/or other mods)

EXHAUST

Easy and fast! 3 ways to modify the exhaust system on your CRF:

● QUIET AND POWERFUL - STOCK OR MODIFIED ENGINES - Powroll Oversize Header #18353H WITH Thrust Nozzle #17105N and your stock muffler.

● LEAST EXPENSIVE OPTION FOR STOCK ENGINES - WITH SPARK ARRESTOR - Thrust Chamber #17105

● LEAST EXPENSIVE OPTION FOR STOCK ENGINES - NO SPARK ARRESTOR - Thrust Nozzle #17105N

OVERSIZE HEADER

WORKS WITH STOCK MUFFLER

Designed specifically for use with the Powroll bore kits and other performance products for excellent power increases.

Better throttle response and more top end. Use with stock unmodified muffler, with the Thrust Chamber for more power, and the Thrust Nozzle for the best horsepower.

18351H H HEADER CRF150 -- $100.00

THRUST CHAMBER - Spark Arrested

MODIFIES STOCK MUFFLER FOR BETTER POWER

This CNC machined billet piece works in tandem with your excellent stock exhaust system for better power without increased sound levels.

Performance similar to many complete aftermarket exhaust systems! Better throttle response and increased top end.

Works with stock spark arrestor.

17105 H THRUST CHAMBER CRF -- $55.00

THRUST NOZZLE - Not Spark Arrested

MODIFIES STOCK MUFFLER FOR BEST POWER

No need for the spark arrestor? The Thrust Nozzle will give you better power than running without the stock end cap (and more power than our Thrust Chamber).

Power gains as good as or better than some complete aftermarket systems! Louder and throatier sounding than the Thrust Chamber, but still more stealthy than aftermarket mufflers.

Replaces the stock spark Arrestor unit.

17105N H THRUST NOZZLE CRF -- $55.00

Powroll Motor Performance

13840 Commercial Lp Crooked River, OR 97760 Phone (541) 923-1290 Fax (541) 923-5637

Descriptions and pricing are subject to change without notice.