Yamaha Rd 350 Manual Service
Aircooled RD Manuals and Parts lists. RD125 - 200DX SUPPLEMENTARY MANUAL. RD250/350A 1973 MANUAL RD250/350B 1975 MANUAL.
Ok how to balance carbs on a rd or other inline cylinder type bikes- TOOLS NEEDED; You will need two pieces of flat wood / plastic approximately 10 centimetres in length, 5 millimetres in width and thick enough not to bend. I use old ice lollysticks, cut to size.
The bike needs to be upright NOT on a sidestand so you will need a centrestand or paddock stand or another method of keeping the bike upright. Also an 8mm and 10 mm spanner or good adjustable. Remove the rubber tubes that join the carbs to the airbox, or take off any pod filters (K+N or similar) Slide one piece of lollystick into the rear venturi of each carb, going far enough in to just touch the back of the needles, then out a few millimetres get the depth the same on both carbs. Kneeling on the right hand side of the bike (with the ignition OFF) slowly open the throttle whilst watching the lollysticks closely.
Yamaha Raptor 350 Service Manual Pdf
You need to get the sticks in line with each other in your line of sight. You no doubt will see one stick `dip` before the other now you`ll be surprised by how much. The cable on the carb thats `dipping` its stick second should now be adjusted.
To adjust the throttle cables you will need to loosen the adjusting nuts at the top of the carb. Initially you`ll probably turn the nut through complete 360 degrees but open and close the throttle every ½ turn too to check the amount of `dip`. As you get close to balancing the `dipping` of the sticks you`ll only be turning the adjusters 1 face of the nut at a time maybe even less. Once the sticks dip at the same time, tighten up the locking nuts on the adjusters, and remove the lollysticks. Now open and close the throttle FULLY and rapidly in quick succession. Replace the sticks in the carbs and re-check for parallel `dipping` if they need adjusting further, repeat as necessary. Once you are happy, remove the sticks, replace the rubber connecting tube / pod filter and start the engine.
Be careful NOT to use the throttle harshly but turn the handlebars fully from lock to lock. Should the revs rise when you do this, adjust the free play of the throttle cable at the twistgrip end NOT the carb end. Once you are happy there is no more adjustment needed, you can then go and test the bike on the road. This is specs of all the european rd models:- RD 125 124cc 2-stroke twin. 16hp, 240lb, 70mpg, 75mph. Pre 12hp restriction sporty 125. Bouncy handling and an apetite for plugs are the bad bits, decent go is the good side.
1974 Yamaha Rd 350 Service Manual
You'll pay about £400 for a good, late (1981) model - if you can find one. RD 125 LC 123cc l/c 2-stroke single. 12hp, 210lb, 70mpg, 70mph. Sporty-looking learner special with similar performance to all the others. Now getting long in the tooth and lacking the crucial street race cred of the newer stuff.
Liable to have been severely abused, check the rear suspension for wear and the motor for alleged tuning. Yamaha RD125LC Prices: Low £350, High £600 RD 250 247cc 2-stroke twin.
30hp, 330lb, 50mpg, 95mph. Pre-liquid cooling sports 250 with fine performance if in very good condition. High rates of engine wear can make this an unwise choice unless mileage is very low and standard very high.
Yamaha RD250 Prices: Low £100, High £400 RD 250 LC 247cc 2-stroke twin. 35hp, 310lb, 40mpg, 100mph. Faster and more reliable water-cooled offspring of the old RD250. May seem irrelevant as the 350 is easily available, but still fun.
Exhausts and carbs can give rise to problems, and be very careful to avoid raced examples. Yamaha RD250LC Prices: Low £350, High £750 RD 350 LC 347cc l/c 2-stroke twin.
45hp, 320lb, 35mpg, 110mph. Just the same as the 250LC but with a bigger engine and a second front disc.
Same faults and similar performance, but with less stress. Very exciting to ride and very popular with racers, street and track. Yamaha RD350LC Prices: Low £650, High £1250 RD 350 F 347cc 2-stroke twin. 59hp, 320lb, 45mpg, 120mph Thorough redesign of the earlier Elsie with an improved chassis and Power Valve engine makes this the sports 350 to go for. Few problem areas as long as raced examples are avoided. Absolute tops in the smiles per mile ratings on twisty roads!
No longer made and Mitsui have stopped importing the Brazil-built RD350R. Price dependant on condition and lack of home tuner's attention. Yamaha RD350F Prices: Low £900, High £2000 RD 400 398cc 2-stroke twin. 40hp, 365lb, 45mpg, 105mph Quick pre-LC street racer. Fast enough for almost anyone with demon accelaration, but weak brakes. Engine wear will be the big problem along with rising prices caused by the Jap Classic brigade.
Buy the final E-version with cast wheels and electronic ignition. Original pipes totally unobtainable. Yamaha RD400 Prices: Low £250, High £500 RD 500 LC 499cc l/c 2-stroke V4.
79hp, 392lb, 35mpg, 135mph. First of the real racer reps with macho performance and dead flash styling. Excellent handling and brakes, allied to the racer bodywork make this the ultimate LC. Looks a bit dated now and smokes a lot.
Sound design but check carefully for signs of crash damage. They never hacked it on the track so unlikely to have been raced.
Appreciating in value against equivalent NS and RG simply because of Yamaha's 2-stroke heritage, not because it's the best bike. Main bearings go AWOL at exactly 20,000 miles. Yamaha RD500LC Prices: Low £1900, High £3000.
Rajnish, My bro's friend who lives in Pune has a workshop Manual of Rd350/250, Ds7. I've read it personally, it's signed by someone dated 1979. Gr8 thing, its got all info dissassembling the Rd (crankcase opens verticaly n the reed valve torque indution, 7-th port)He also has an Rd which I would say is the best preserved RD i've ever seen. EVERYTHING ON THAT RD IS AS IT CAME FROM JAPAN, never opened anything at all. And its 20yr old and done 50000km.
Then too it looks like it was bought yeesterday. That bike is a tradition in his family. In 2000 after a gap of 2 yrs, the bike started at second kick. I'll try to get pics as soon as possible.