Powroll Motor Performance - Since 1964  

 

 

For a limited time

 

 

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

 

Powroll products for the YAMAHA TT500 XT500 SR500

Stock Bore 87mm x Stroke 84mm 9:1 Compression

 

STROKER 7.0mm

Displacement with Stock (87mm) Bore = 541cc, with 90mm = 579cc, 92mm = 605cc.

Great torque and midrange increases.

Note: The Powroll rod is short, and will drop compression by 1 point with most aftermarket pistons. This is considered safer for the engine, which has reliability issues at higher compression ratios. If you would like more compression, you can send a new Carillo rod (3.5mm shorter than stock) to us when you send in your crank for stroke work.

INCLUDES: Special Powroll Rod, new OEM Needles, pin, shims. Work done on your stock crank assembly.

REQUIRES: Send in your crank for modification.  Download our Stroker Booklet for details.  Windage tray modification. Piston may need skirt shortened.


TT500 & XT500  #16027RA Y STROKE 500 W ROD ASSY -- $315.00
 


Quantity


SR500  #16033RA Y STROKE SR500 W ROD ASSY -- $315.00
 


Quantity

 

Powroll Motor Performance

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

Copyright © 2007 Powroll Inc.  All rights reserved.  All photos and text are the intellectual property of Powroll and cannot be reproduced without permission.

Descriptions and pricing are subject to change without notice.