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Purchase Options
Part # K-39PWK Keihin 39mm PWK Carburetor (only) $399.00
Part # K-CR39-K Keihin 39mm PWK Carburetor Kit with CR Throttle & Cable $475.00

Part # 01-604 Throttle Cable Honda TRX 250R Thumb to 39mm PWK Carburetor $49..95
Part # C-069 Throttle Cable Suzuki LT 250-500 Thumb to 39mm PWK Carburetor $49.95

All Carburetor Kits Are PreJetted by DRI
No company in the ATV industry has more carburation experience and offers better instructions and customer service than DRI
Optional Items:
DRI SUPER FLOW Carburetor Mod
DRI Carb Bore (40.5mm) and Super Flow
Part # K-JK01 Jet Kit
PYRAMID Reed Valve

CARBURETOR INFORMATION:
Models: Honda ATC/TRX 250R & Suzuki LT 250R & Suzuki LT 500

Engine Modifications Recommended:
TRX 250-LT 250
Works with either stock or modified engines.
But performs best with modified engines running higher compression than stock

LT 500
Works well with either stock or modified engines.
Power:
Best if used when strong Midrange and Great Top End Power is needed

For LT 500 power is excellent across the entire power curve

Optional Upgrade Modifications:
DRI SUPER FLOW mod. Is a machining modification performed in house by DRI. Improved performance on all Keihin carburetors at all air speeds. Improved air flow efficiency.
Works well in all applications

Reed Cage & Intake Manifold Recommendations:
Stock intake manifold should be used.

Carburetor will perform BEST when used with PYRAMID REED VALVES

Air Box Requirements:
DRI strongly recommends using the stock OEM airbox with K&N Air Filter.
Air Box Lid Off
Jet Kit Optional but recommended Jet Kit is built around settings DRI puts in Carburetors.
Kit is supplied with Richer and Leaner: Pilot Jets, Needles, Main Jets, in a polypro box.

Notes:
Keihin 39mm PWK Carb works best with PTR Pipe & Fat Boy Silencer. It will do very well with either the Midrange or High Rev Version

Information Required From Client To Properly PreJet Their Carburetors:
List of all Engine Modifications (porting, bore size etc.)
Pipe & Silencer
Air Filter & Box. Lid On or Off
Note if any Electrical Mods have been made
Kicking Compression (measured with engine cold)
Fuel Type and Octane-PreMix Brand/Ratio
Elevation
Temperature & Humidity
Type of Riding
Throttle of Choice. Thumb or Twist.
Weight of Rider
Skill Level Of Rider