SEPTEMBER VACATION

I will close my shop for the month of September for vacation. Normally September is one of the slowest months and with so many great motorcycle events like the AMA Outdoor Nationals, MX DES NATIONS, AIM Expo, and the Barber AHRMA race, there's no time to work, just time to play.

August 5th is the cut-off date to get your cylinders in for service. After that, any inbound orders will be stored until October 1 when I re-open my shop.

Big Bore Master List

bigboremasterlist

Motorcycles & ATVs, Japanese and European Brands from 1970-2016

This is our master price list of the biggest selection of big bore kits available by any engine builder in the motorcycle industry. All of these kits include these services and parts.

For 2-stroke engines, the package includes:

  • Cleaning and disassembly.
  • Inspection and measurement.
  • Over-boring to big bore size 2, 3, 4 & 5mm.
  • Porting: You’ll get your choice of powerbands; more low/mid, more mid/top, broader powerband, and choices of fuel; pump or race gas.
  • Replating with nickel silicon-carbide composite plating and diamond honing.
  • Head mods: resurfacing, squish and bowl machining, polishing.
  • Powervalve service with assembly and timing, ready for installation!
  • Top End Parts include your choice of pistons from WISECO, WOSSNER, VERTEX, and PRO-X, all kits come with gasket kits, PV seals and o-rings, top end needle bearing, and alignment pins.
  • Piston check with ring end gapping set to install.
  • Cylinder bore set-up for no break-in, just ride!
  • Backed up by a 1-year warranty on the plating and free updates to the porting and diamond honing.

BigBoreKits

For 4-stroke engines, the package includes:

  • Over-boring 2, 3, 4mm
  • Plating with Diamond honing
  • Your choice of piston Wossner, Wiseco, JE, Vertex, CP
  • Piston check with ring end gapping and assembly of the ring pack
  • Backed up by a 1-year warranty on the plating and free diamond honing

Over 400 model years of Japanese and European dirt bikes from 1970-2016


JAPANESE DIRT BIKES and ATV

Honda


Model Year Disp. Price Special Notes
CR80/85 1986-2007 92cc $400  
CR80 1986-2007 100cc $400  
CR85 2005-2007 92/100cc $400 Must install Mishimoto oversized radiator
CR125 1973-1978 134cc $400  
CR125 1979 - 1980 134cc $400  
CR125 1981 - 1988 134cc $400  
CR125 1989-2004 134cc $450  
CR125 1989-1999 144cc $500  
CR125 2005-2007 134cc $450  
CR125 2005-2007 139 or 144cc $500  
CR125 1973 - 1977 139 or 144cc $500  
CR250 1978-1980 265cc $400  
CR250 1981-1985 265cc $400  
CR250 1986-2007 265cc $500  
CRF150R 2007-2009 159cc $495  
CRF250R /X 2004-2009 270cc $600 Cylinder Works Kit
CRF250R 2010-2015 269cc $495  
CRF450R /X 2002-2008 470cc $495  
CRF450R /X 2002-2008 490cc $600 Cylinder Works Kit
CRF450R 2009-2015 480cc $600 Cylinder Works Kit
CR500 1984-2001 520cc $475  
ATC250R 1985-1986 265cc $400  
TRX250R 1986-1989 265cc $400  
TRX450ER 2006-2009 477cc $600 Cylinder Works Kit

Kawasaki


Model Year Disp. Price Special Notes
KX60 1983-2003 66cc $350  
KX65 2000-2015 72cc $375  
KX80/85 1988-2015 92cc $400  
KX80/85 1988-2015 100cc $400  
KX80 /85 /100 1988-2015 107cc $400  
Hot-Rods stroker crank and bottom end kit bumps the KX80,85,100     $250  
KX125 1985-1993 130cc $400  
KX125 1994-2010 134cc $450  
KX125 1994-2010 144cc $500  
KDX200 1995-2006 225cc $550  
KX250 1983-1986 255cc $450  
KX250 1987-2008 265cc $600  
KX250F 2010-2015 270cc $600 Cylinder Works Kit
KX250 1993-2008 295cc $660  
KX500 1989-2004 525cc $660  
KX500 1989-2005 540cc $660  
KX250F 2004-2009 270cc $495 Works best with #2 Hot-Cams

Suzuki


Model Year Disp. Price Special Notes
RM65 2003-2005 72cc $350  
RM85 2002-2016 92cc $400 Crankcase clearance mods included send engine
RM85 2002-2016 100cc $400 Crankcase clearance mods included send engine
RM125 1976-1989 134cc $325  
RM125 1990-2010 144cc $500 Crankcase clearance mods included send engine
RM250 1982-1985 265cc $350  
RM250 1987-1988 265cc $550  
RM250 1989-2010 265cc $600  
RM250 1996-2010 295cc $660  
RMZ250 2004-2016 290cc $495  
LT250R 1988-1992 265cc $450  
RM465 1982-1983 500cc $495  
LT500R 1987-1990 525cc $450  
LT-R450 2006-2011 478cc $595  

Yamaha


Model Year Disp. Price Special Notes
PW50 1990-2016 60cc $225  
YZ80 1993-2016 92cc $400 Crankcase clearance mods included send engine
YZ80/85 1993-2016 103.5cc $400 Crankcase clearance mods included send engine
Hot-Rods stroker crank and bottom end kit bumps the YZ105 to 112cc     $250  
YZ125 1975-1989 130cc $325  
YZ125 1990-993 134cc $400  
YZ125 1994-1996 134cc $450  
YZ125 1998-2015 134cc $450  
YZ125 1994-2015 144cc $500 Crankcase clearance mods included send engine
Best pipe: DEP Rev pipe for the 2005+        
YZ250 1975-1991 265cc $400  
YZ250 1992-2016 265cc $600  
YZ250 1999-2016 295cc $660  
Athena YZ295 top end kits include ported cylinder head piston
& gaskets and power-valves
    $1295 Fits 1999-2016 YZ250 2-strokes
YZ /IT465 1980-1982 490cc $325  
YZ490 /WR500 1983 510cc $425  
YZ250F 2001-2016 270cc $495  
YZ426F 2000-2002 444cc $495  
YZ450F 2003-2008 472cc $495  
YFS200 1988-2006 212cc $425  
YFZ450 2006-2016 478cc $600 Cylinder Works Kit

EUROPEAN DIRT BIKES and KARTS

Husqvarna


Model Year Disp. Price Special Notes
CR/ WR125 1999-2014 144cc $500  
CR250 1998-2009 265cc $600  
CR250 1998-2013 295cc $660  
 Refer to KTM List for 2015 and newer Husqvarna

Gas Gas


Model Year Disp. Price Special Notes
125 all models 2000-2016 144cc $500 Crankcase clearance mods included send engine
200 all models 2000-2016 240cc $600  
250 all models 2000-2016 265cc $600  
300 all models 2000-2016 330cc $600  

KTM


Model Year Disp. Price Special Notes
50SX LC 2001-2015 58cc $375  
65SX /XC 1999-2008 72cc $375  
65SX 2009-2015 72cc $400 Offset Bore 
85SX 2003-2015 100cc $425 LA sleeve kit 
125SX /EXC 2001-2015 134cc $500  
125SX /EXC 2001-2016 144cc $500  
150SX 2007-2015 155cc $500  
200EXC /MXC /XC-W 1998-2016 212cc $500  
250SX /EXC 2000-2016 265cc $600  
250SX /EXC 1996-2016 295cc $660  
300EXC /MXC 1991-2015 310cc $660  
300EXC /MXC 2004-2016 330cc $660  
250SX-F 2006-2012 276cc $600 Cylinder Works Kit
250SX-F 2013-2016 270cc $495  
520/ 525SX-F 2000-2010 530cc $550  
525XC ATV 2008-2012 530cc $550  

TM Motorcycles


Model Year Disp. Price Special Notes
125 1998-2007 144cc $550 Crankcase clearance mods included send engine
250 1998-2013 265cc $600  

TM Karts


Model Year Disp. Price Special Notes
125 all models All years 134 & 144cc $500 Crankcase clearance mods included send engine

Zundapp


Model Year Disp. Price Special Notes
125 mx and enduro vintage 1970-1977 150cc $425  

 

CALL OR TEXT ERIC AT 1-(630) 825-5645 FOR A QUICK PRICE QUOTE ON CUSTOM PERFORMANCE ENGINE REBUILDS FOR YOUR BIKE WITH VIRTUALLY ANY AFTERMARKET ACCESSORY! Email mxericgorr@gmail.com