Denoonsp is not affiliated with Ontario Moto Tech in any way. The following article is provided for your information only.
CB400F
ONTARIO MOTO TECH CORP., FORMERLY
Yoshima Racing Service (YRS) offers high quality performance equipment and services for popular four-stroke motorcycles. YRS products are tested repeatedly in extreme conditions and are carefully inspected and evaluated to make sure that each product meets our own strict standards of quality, reliability and longevity.
Of course, the best proof of all is not wins achieved by manufacturer-sponsored racers with special engines, but it is the numerous successes of our customers who have bought our products and are winning races. This is the reason that mechanics and motorcycle enthusiasts have come to trust our name, products and service.
Sample of ONTARIO MOTO TECH PRICE LIST FROM 1983
Engine Parts
1067 Racing EXHAUST SYSTEM, tube tail w street baffle, CHROME
1068 Racing EXHAUST SYSTEM, tube tail w street baffle, BLACK
1190 Standard Replacement Baffle, 1 1/4"
1191 Optional baffle, 1 1/2"
1223 458cc PISTON KIT with head gasket, no resleeving necessary
1224 466cc PISTON KIT with head gasket, no resleeving necessary
1273 Piston, 458cc, 54mm, 10.5:1
1274 Piston, 466cc, 54.5mm, 10.5:1
1313 Piston Rings, 458cc, 54mm
1314 Piston Rings, 466cc, 54.5mm
1343 Wrist Pin, 458cc & 466cc
1362 Circlip
1386 Head Gasket
1420 Road & Track CAMSHAFT, billet cam
1421 Ontario Special CAMSHAFT, hardfaced & reground, exchange
1450 Refundable camshaft CORE charge, $2 service charge
1491 Heavy Duty VALVE SPRING SET with alloy retainers
1492 Racing VALVE SPRING, use with stock retainers
1606 Racing CAMCHAIN, endless chain
1630 High Pressure OIL PUMP, Exchange
1631 CORE Charge for oil pump, refundable less $2.
1881 Swing arm BUSHINGS, bronze alloy
1940 Race Action Clutch Kit with Springs
1970 Race Action Clutch Springs
1914 Dyna-III IGNITION System with black box
1920 Dyna COILS - 35,000 volts
1922 Dyna Ignition WIRE Set
2080 CB400F carburetor boring labor (carb must be stripped)
Oil Pump
If you already have an oil pressure gauge hooked up to your Honda 400f, you have undoubtedly noticed that the pressure will only go up to approximately 40 pounds. While 40 lbs. of oil pressure may be adequate for a completely stock bike, our experience shows that much more oil pressure is required of a reliable racing engine. The YRS oil pump developed by Kaz Yoshima will bring oil pressure up to a healthy 65 to 70 pounds.
Engine Stages
CB400F Engine X-1
Gives quick throttle response and great increase in performance throughout the power band using stock red line. Perfect for street riders who want extra power and better gas mileage as well.
· Road & Track Camshaft
· 458cc Piston Kit
CB400F Engine X-2
Looking to get the power of 750 engines with the great handling of your 400F? This is it! the use of YRS Exhaust System and 42 teeth sprocket should put you in the lower 13 second bracket, as proven by Ms. Monty Fisher who achieved an ET of 13:26 at the Byron Dragway, Illinois. The redline is 10,700 rpm.
· Road & Track Camshaft
· 458cc or 466cc Piston Kit
· Hi Pressure Oil Pump
· Racing Head Modification
CB400F Engine X-1
Very potent café racing, road racing, drag racing motor which also happens to be very streetable as featured in numerous motorcycle magazines (Big Bike 7/76. Cycle Guide 8/76, Cycle 6/77, Modern Cycle 11/77). A mean motorcycle that goes over 130 mph and more with fairing. the redline is 11,500 rpm.
· Road & Track Camshaft· Your rods shot-peened
· 458cc or 466cc Piston Kit · Extra Strength Camchain
· H/D Valve Springs · Racing Head Modification
· Hi Pressure Oil Pump · YRS Exhaust Pipe
BIG BIKE, July 1976
“Rocketship Honda!” by John Ulrich
“The checkered flag waves. I’ve won! After riding on the street for two weeks, after riding to the track, the Yoshima Racing Service Honda has carried me to victory.”
“Kazuo Yoshima is determined to prove everything he builds. With this 400, he already has. It’s a rocketship.”
CYCLE GUIDE, August 1976
“A Mean Motorscooter and A Bad Go-Getter” by Art Friedman
“The bike is a most impressive racer. It’s easy and pleasant to ride fast, and goes like hell down the straights. . . It took Yoshima ten minutes to make the bike a street machine again.”
CYCLE, June 1977
“Yoshima’s Business Card”
“This business card beats Kawasaki Z-1s.”
“‘Compact’ is the best word to describe the Kaz-machine. It weighs in at 275 lbs. ready to race, has unlimited cornering clearance, handles superbly and goes.”
