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HONDA CB750F RIGHT SIDE COVER FITS CB900F ALSO
CB900C CB900F TOP END GASKET SET
HONDA CB900F/F2 Supersport/, Rectifier/Regulator,80-82
HONDA CB900F/F2 Supersport/, Rectifier/Regulator,80-82
CB900 CB900F STD.PISTONS GREAT CONDITION
HONDA CB900F / CB919, Stator 02-07
Honda CB900F CB1100F CB750F Fork Springs (No Reserve)
Honda CB750F CB900F Super Sport Seat Saddle 1979-1982
HONDA CB750F CB900F CB1100F SEAT COVER (No Reserve)
honda cb900 cb900f cb 900 side cover
honda cb900 cb900f cb 900 cb750 igniter ignitor cdi ecu
honda cb900 cb900f cb 900 side cover
honda cb900 cb900f cb 900 seat cowl plastic
Honda Brake Speed Bleeders CB750F CB900F CB1100F
HONDA CB CB1100F CB900F CB750F CB 750F LOT O NICE PARTS
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CB900F Project Bike - A Step-By-Step Street Scorcher (p2)Kaz gets rid of this lag by drilling out the EPA mandated press fit air jets on a spare set of carbs. Without drilling these jets, a sacrifice must be made somewhere in the powerband. But since there is no replacement jet and it would be easy for someone to screw up the drilling operation. he left the jets in our carbs alone. His exhaust system places the lag where Kaz feels it causes the least concern. At 60 mph the engine spins at 4100 rpm, and there the engine makes more power. Under a heavy throttle hand, the tach needle swings past the powerloss zone so fast it isn’t even noticeable. For the sake of true comparison, we went to the strip with the standard tires, gearing, ignition timing, suspensioneverything stock except for the aforementioned modifications. Ambient conditions were much the same as our first trip. We had problems keeping the hard rear tire from spinning during fast starts, but after a few practice runs, the CB900 ripped through the quarter in 11.695 seconds at 115.97 mph. The best our CB900 could manage in the fifth gear rollon was 76.79 mph, which is slower than stock. Since the engine makes more power in the 3500to4000rpm rev range used during rollons, we cannot explain our results. We later discovered that the rear brake pads were dragging, but we have no idea how much, if any. this affected rollon performance. The new quartermile figures are 3.45 seconds quicker than stock and nearly six mph faster. That spells horsepower, more than we’ve ever heard of from any aftermarket manufacturer or streetable pipes. Though the stageone engine is still off the Katana’s pace, which we really didn’t expect to best with so few modifications, (he new lime and speed b at our Kawasaki’s KZ1000J by nearly twolengths of a second and three mph. That makes the stage one CB900 faster than any Stock 1000cc machine we’ve ever tested, with the exception of the Katana, And though the rollon tests don’t show a, the stageone engine accelerates smartly at low revs and no longer reels starved below 6000 rpm. Not too shabby for a couple of boltons. STAGE TWO The standard forged connecting rods are used, but Kaz polishes the beams and chamfers the big ends to relieve any stress points. All the rods are then balanced 10 produce consistent rotating weight and shotpeened for maximum strength. He also installs stronger cam and primary drive chains heattreated to his specifications, while all this might sound a bit extreme, Kaz wouldn’t cut one of his 1 002lA: CBs loose on the racetrack without these modifications. Race bikes run at peak power constantly, and with crank speeds of 66 revolutions per second, who wants to take chances? But for street use, Yoshima says the only logical modification is the installation of the oilpump spring. The main reason Kaz was able to use the standard rod safely is his piston assembly is lighter than stock, The larger 66.0mm pistons actually weigh the same (175 grams) as the smaller 64.5mm standard pistons, but by redesigning the wristpin boss, Kaz was able 10 use a shorter wrist pin that is stronger and five grams lighter. He also managed to make the boss stronger without using as much material and thus kept the weight of the piston the same as the standard unit. Indeed, the weight is crucial with piston speeds nearing 23 meters per second. Yoshima’s pistons are pressure die cast in Japan using a special silicon content aluminum. The Silicon provides an extra degree of lubrication and allows tolerances to be tighter than those of nonsilicon forged pistons. The piston crown features larger valve pockets for bigger valves and more radical cams. Compression is bumped to 10.5:1 from the stock 8.8:1, and the crown is designed to direct the flame front to theouter edges of the bore for more complete burning of the 1uel. With these pistons, the engine can easily handle pump gas without any sign of detonation. Rings are similar to the standard units, outer edges of the bore for more complete burning of the fuel. With these pistons, the engine can easily handle pump gas without any sign of detonation. Rings are similar to the standard units, Higher compression, however, does create a problem with the standard ignition system, with tile increase in combustion chamber pressure, it is difficult for the ignition spark, to make the jump across the plug’s electrodes. This makes the bike reluctant to start when it’s cold and causes inconsistent firing, especially at higher revs. If the plugs get wet or soiled with carbon, they foul easily. So Kaz installs a Dyna III ignition system. This system’s powerful coils deliver 30,000 volts to ea.ch cylinder and allow the plug gaps to be opened. Spreading the electrodes forces the spark to jump farther and essentially creates longer firing duration. Kaz also advances the ignjtion two degrees (41 degrees BTDC at 3500 rpm) to begin the firing process sooner and ensure complete burning of the fuel. We stuck with the standard CV carbs once again, but Installed number 75 primary jets and tilted bigger number , 08 secondary (main) jets in p ace of the standard number 105s. We left the street pipe in place From the very bottom, the stage·two engine pumps out gobs of horsepower. At 4000 rpm it grunts out 39.25 horsepower and a whopping 51.5 pounds/feet 01 torque. That is eight more horsepower than the stock engine, four more than the stage one engine, 11 more pounds feet of torque than the stock model, and nearly seven more than the stageone engine. It jumps from 48.0 to 54.5 horsepower at 5000 to 5500 rpm, where the stageone engine went flat Throughout the rev range, the Stage·two engine consistently makes from eight to 12 more horsepower than stage one, until it peaks with 94.5 horsepower at 6500rpm. Torque peaks at 6500 rpm with 62 pounds/feet, or roughly eight more than stage one produced at its 8000-rpm peak. Throttle response is immediate and brutal. The CB 1002 would spin the standard rear tire too easily in the lower gears. Obviously a better tire was needed before we ventured 10 the dragstrip.
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Honda Mini Trail CT70 Information, Pictures, Resources and Help Honda 90 CT90 Trail Bike Motorcycle Website with pictures, history, part guide and tech help. Honda CB750/900/1100F SuperSport Website The Honda Custom CB900C / CB1000C Website The Honda Custom CB900C / CB1000C Online Community Club Todd's Honda CB900C-1000 Custom Message Board Did you Know...
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