quality. service. price.
New and Reconditioned Parts
Cylinders
NICHE Top End Kit
$235
($10 Shipping for Lower 48 only)
Our version of an imported top end kit. We couple a NICHE cylinder with top quality Wossner components and inspect the critical tolerances of the cylinder before it ships. This is a less expensive option to having your cylinder bored or buying a used OEM cylinder. Kit includes 66mm piston kit, Wossner top end gaskets, Wossner top end bearing, studs and nuts.
Blaster Cylinder Head
$160
(shipping included)
Did you know that our head modification adds 3-5 HP depending on supporting modifications. This works with bore up to 68.25 mm. Also works with stock stroke and 3 mm with spacer plate. Requires fresh high test fuel.
OEM Blaster Cylinder
$455
($35 Shipping for Lower 48 only)
66mm Sleeved OEM Blaster cylinder with Wossner piston kit, Wossner top end Gaskets, new studs, 10 flange nuts, top end bearing, honed with torque plate, machined top and bottom gasket surfaces, torque tested.
out of stock
66mm OEM Ported Blaster Cylinder
$555
($35 Shipping for Lower 48 only)
66mm Sleeved, stage 1 trail ported, OEM Blaster cylinder with Wossner piston kit, Wossner top end Gaskets, new studs, 10 flange nuts, top end bearing, honed with torque plate, machined top and bottom gasket surfaces
out of stock
66.5mm OEM Blaster Cylinder
$380
($35 Shipping for Lower 48 only)
66.5mm OEM Blaster cylinder with Wossner piston kit, OEM top end Gaskets, new studs, 10 flange nuts, top end bearing, honed with torque plate, torque tested
Trail Ported Blaster Cylinder Kit
$400
($30 Shipping for Lower 48 only)
Fast trail ported import cylinder bored to 66.5mm with Wossner Piston, top end gaskets, top end bearing, and flange nuts.
67.5mm OEM Blaster Cylinder
$355
($35 Shipping for Lower 48 only)
67.5mm OEM Blaster cylinder with Wossner piston kit, OEM top end Gaskets, new studs, 10 flange nuts, top end bearing, honed with torque plate, torque tested
68mm OEM Blaster Cylinder
$345
($35 Shipping for Lower 48 only)
68mm OEM Blaster cylinder with Wossner piston kit, OEM top end Gaskets, new studs, 10 flange nuts, top end bearing, honed with torque plate, torque tested
67mm OEM Blaster Cylinder
$365
($35 Shipping for Lower 48 only)
67mm OEM Blaster cylinder with Wossner piston kit, OEM top end Gaskets, new studs, 10 flange nuts, top end bearing, honed with torque plate, torque tested
Aggressive Trail Ported Blaster Cylinder
$525
($35 Shipping for Lower 48 only)
Aggressive trail ported Blaster cylinder with 68mm bore. Comes with OEM gaskets, Wossner forged piston kit, top end bearing, ten 8mm flange nuts.
out of stock
Vito's 240 Big Bore Kit
$639
($25 Shipping for Lower 48 only)
Porting Available! Call the shop
This includes:
- Big Bore 240cc cylinder kit - 72.00mm
- Oversized head to accommodate the larger piston
- Piston with rings and bearings
- Studs
- Complete re-jet kit with jets and needle
- Full top end gasket kit
This is for a complete YAMAHA BLASTER YFS200 72.00mm big bore kit made by VITO'S PERFORMANCE
This is a bolt on kit, that has shown proven dyno results of 34hp or more!
This has high performance port timing, triple exhaust, and four intake ports!
Crazy power over stock setup
This kit has been on the market for a LONG time, and still reigns as KING for a reason: HUGE power gains and awesome reliability.
This can be used with our 3mm stroker crankshafts as well for even more power (the cases do NOT need to be machined for the crank to fit)
Crankshafts/Crankshaft Kits
Yamaha Blaster Crankshaft Kit
$340
($35 Shipping for Lower 48 only)
Rebuilt OEM Blaster crankshaft kit features:
Crankshaft, Bottom end gaskets and seals, Clutch hub and balance shaft lock washers, Crank Key, Kick idle gear snap rings, and Koyo main bearings
Vito's +3mm Stroker Crankshaft TRUED!
$235
($30 Shipping for Lower 48 only)
Vito's +3mm stroker crankshaft. Crankshaft has been checked and trued if necessary. Does not come with gaskets and spacer plate.
This is made by VITO'S RACING
Wrist pin bearings included, and are also brand new silver cage
These are ready to install!
Slight filing to the top of the crankcase may be required
This drops into the OEM factory cases without major modifications (no need to trench out your cases).
This is a direct for the Vito's Performance 240 BIG BORE cylinder kits
Vitos Standard Stroke Crankshatft
$219
($10 Shipping for Lower 48 only)
This is made by VITO'S PERFORMANCE RACING
This is a factory drop in replacement - same size as OEM Yamaha - 57mm stroke
fits any year 1988-2006 Yamaha Blaster YFS200
Also fits any cylinder bore, 66-73mm bore
This is brand new, Wrist pin bearings included and are also brand-new silver cage
Bearings, Bushings, and Gaskets
The Original KOR Yamaha Blaster Rear Shock Conversion Bushings with Hardware
$30
(Shipping included within the US)
Fits all years. Comes with two bushings, nut, and bolt.
These were designed and originated by Ken OConnor Racing and have since been copied and sold by many companies.
These rear shock conversion bushings are designed to be able to use KFX400, LTZ400, 400EX, 450R and 250R shocks. You may have to drill the bottom of the shock to 12mm to fit the bottom 12mm pin.
Do not use the Chinese poly, or copycat aluminum Bushings, they will not hold up. Demand the original. Demand the best.
Bushings are steel and can be welded to the frame if desired. Some slight modifications may be required.
Yamaha Blaster Crankshaft Bearings
$65
(Shipping Included)
KOYO Main Bearings
OEM Top End Gasket Kit
$65
($15 Shipping for Lower 48 only)
Kit includes factory head, base, intake, and exhaust gasket
Counter Balance Shaft Bearings
$50
($15 Shipping for Lower 48 only)
Two OEM bearings
Transmission Bearing Kit
$165
($20 Shipping for Lower 48 only)
Includes two OEM main shaft and two counter shaft transmission bearing
Vito's 240 Head Gasket
$24.99
($9.99 Shipping for Lower 48 only)
Vito's .020 Base Gasket s
$12.99
($9.99 Shipping for Lower 48 only)
CT Head Gasket
$39.99
($9.99 Shipping for Lower 48 only)
Head gasket for the CT240 cylinder
Bottom End Gaskets and Seals
$49
(Shipping Included in the US)
Rubber Grommet Kit
$18
(Shipping Included in the US)
Oil Pump Delete Kit
$36
(Shipping Included in the US)
Piston Kits
Wossner Forged Piston Kit
$95-$100
($9.99 Shipping for Lower 48 only)
Wossner forged piston kit. Complete with piston, rings, pin, clips. Be sure to order the correct size for your cylinder. NO RETURNS
Pro-X Piston Kit
$95-$100
($9.99 Shipping for Lower 48 only)
Pro-X cast piston kit
Lightened
Lightened Counter Balance Shaft
$65
($9.99 Shipping for Lower 48 only)
Yamaha Blaster Lightened Flywheel
$175
($25 Shipping for Lower 48 only)
Lighter rotational mass.
Tools
Motion Pro Flywheel Puller
$21
($2 shipping within the US)
Cable Luber
$15
($2 shipping within the US)
Leak Down Tester
$72
(Free shipping within the US)
"Pressure testing is only half the battle."
Uses vacuum and pressure to test your two-stroke engine.
Comes with intake block offs, exhaust plate, vacuum/pressure tester
Block Off Plate
$27
(Free Shipping within the US)
Block of plate for leak testing two-stroke
Fits Blaster, and most 2 stud exhausts
Jet Kits
Mikuni Jet Kit 26mm
$34
(Free shipping within the US)
5 Main Jets
Jetting Guide
Stage 1: Stock pipe and silencer, oil pump delete, aftermarket filter, aftermarket reeds
Jets:230, 240, 250, 260, 270Stage 2: Stock pipe, aftermarket silencer, oil pump delete, aftermarket filter, aftermarket reeds
Jets:240, 250, 260, 270, 280Stage 3: Stock pipe, aftermarket silencer, oil pump delete, open air box, aftermarket reeds
Jets:250, 260, 270, 280, 290Stage 4: Aftermarket pipe and silencer, oil pump delete, open air box, aftermarket filter, aftermarket reeds
Jets:260, 270, 280, 290, 300Stage 5: Aftermarket pipe and silencer, oil pump delete, open air box, aftermarket filter, aftermarket reed cage
Jets:270, 280, 290, 300, 31032.5 Pilot Jet
Bowl Gasket
Four Screws
Jetting Guide
Includes:
Mikuni VM-26 Carb
$189
($10 shipping within the US)
Comes with Motion Pro throttle cable, TORS delete, Idle screw, and jet kit
Jetting Guide
Stage 1: Stock pipe and silencer, oil pump delete, aftermarket filter, aftermarket reeds
Jets:230, 240, 250, 260, 270
Stage 2: Stock pipe, aftermarket silencer, oil pump delete, aftermarket filter, aftermarket reeds
Jets:240, 250, 260, 270, 280
Stage 3: Stock pipe, aftermarket silencer, oil pump delete, open air box, aftermarket reeds
Jets:250, 260, 270, 280, 290
Stage 4: Aftermarket pipe and silencer, oil pump delete, open air box, aftermarket filter, aftermarket reeds
Jets:260, 270, 280, 290, 300
Stage 5: Aftermarket pipe and silencer, oil pump delete, open air box, aftermarket filter, aftermarket reed cage
Jets:270, 280, 290, 300, 310
VM-26 Choke Knob
$21
(Shipping included within the US)
Cables and Controls
Motion Pro Throttle Cable
$14.99
($2 shipping within the US)
Fits TORS delete, twist throttle
Motion Pro Clutch Cable
$14
($2 shipping within the US)
Hardware
Exhaust Coupler 1.125" ID
$15.50
($2 shipping within the US)
Cable Hold Down
$12.99
($1 shipping within the US)
Oil Pump Cover
$49
($3 shipping within the US)
Flywheel Cover
$69
($3 shipping within the US)
Clutch Actuator Spring Tab
$25
(Free shipping within the US)
Fixes the broken tab for the clutch actuator recoil spring. Can be welded or bolted on
Block Off Kit
$14
($3 shipping within the US)
Sprocket Holder with Bolts
$29
(Free shipping within the US)
Center Case Dowels (Pair)
$18
(Free shipping within the US)
Complete Engine Dowel Pin Kit
$30
(Free shipping within the US)
Clutch Push Rod and Ball
$22
(Free shipping within the US)
Clip and Washer Kit
$39
(Free shipping within the US)
Master Engine Bolt Kit
$37
(Free shipping within the US)
Center Case Bolt Kit
$20
(Free shipping within the US)
Clutch Cover Bolt Kit
$13
(Free shipping within the US)
Stator Cover Bolt Kit
$11
(Free shipping within the US)
Oil Pump Cover Bolt Kit
$11
(Free shipping within the US)
Flywheel Nut and Washer
$19
(Free shipping within the US)
Clutch Cable Holder
$19
(Free shipping within the US)
Kicker Spring Kit
$19
(Free shipping within the US)
Cylinder Stud Kit
$22
(Free shipping within the US)
Engines
Yamaha Blaster Engine
$1,050
$75 US lower 48 only
Rebuilt Blaster engine. New main and balance shaft bearings, Wiseco crankshaft, freshly bored aftermarket cylinder with Wossner forged piston, Wiseco / Wossner gaskets and seals. Perfect choice for the recreational rider that's on a budget. Does not include flywheel, stater, kicker, or shift shaft. Feel free to call the shop if you have further questions.
Aggressive Trail Ported Engine
$2,200
$75 US lower 48 only
Freshly built blaster engine. Aggressive trail porting, head mod for high octane pump fuel, lightened balance shaft, lightened flywheel, drilled primary, Tusk clutch kit, Wossner connecting rod, Wossner forged piston, OEM gaskets, new OEM main and transmission bearings, oil block off, shift star mod. The engine cases have no damage. Does not come with a stator, kicker, or shifter. Engine has been heat cycled.
860 230 5003
© 1983-Present by Ken OConnor Racing. All rights reserved.