Jump to content

YPVS TONE

Free
 View Profile  See their activity

  • Posts

    477

  • Joined

  • Last visited

  • Days Won

    1

 Content Type 

Posts posted by YPVS TONE

    YB100 IDLE SCREW NOT WORKING

    in Yamaha Workshop

    Posted

    Does the carb slide move up down when you turn the idle screw ? If I remember the YB100 was a similar setup to the FS1E both using the disc valve engine with the carb on the RH side of the engine. I remember the FS1E had a pin that went through the carb slide and located in the idle screw with a tiny spilt pin, so as you turned the idle screw it raised or lowered the carb slide thus altering the tickover speed. If the slide doesn't move when you turn the idle screw maybe the pin or locating split pin is missing. You can see the pin,spilt pin and idle screw as items 15,16 and 23 as shown here

    https://www.yamahamotorcyclespares.co.uk/genuineparts/9010/5/yamaha%20yb100%2082-87/carburetor?uID=0

    Hope this helps.

    Tony

    • Like 2

    RXS100 Not running right

    in Yamaha Workshop

    Posted

    First thing I would do is get rid of the wadding on the baffle which is usually held on with wire wrapped around it and is not required. The Genuine air filter I got for my LC a while back came pre oiled so it may be an idea to squeeze out any excess oil from the one you have if you've applied oil to it. If you've fitted a new piston did you fit it with the arrow on the top of the piston facing forward towards the exhaust port ?

    RXS100 Not running right

    in Yamaha Workshop

    Posted

    IF I remember rightly the RXS100 uses a foam type air filter. Did you apply oil to it when you put it in as you may have over oiled it as they should only be damp but not dripping with oil. The other thing to check is the exhaust baffle to make sure it's not coked up. I usually clean mine on the LC with a blow lamp to burn off the oil and carbon then use a wire brush to clean off the coke, making sure all the small holes at the end are clear. Can't remember on the RXS if the baffles came with any wadding on them when new but if yours has still got it on you can do away with it.

    Also you say it had a cone type filter on it when you got it and you've put the standard airbox on. Usually when you put a K&N type filter on you have to up the main jet to compensate for the extra airflow so now it maybe overjetted with the standard airbox on. Got a Yamaha data book that say's for the early 1983 RXS100 (31J) model it lists a #120 main jet as standard so maybe worth checking.

    Tony

    XVS 950 1st Service

    in The Bar

    Posted

    Looking at the owners manual for the XVS950 on the Yamaha Motor UK site it says that for just an oil change 3.7L and oil and filter change 4.0L as you say. If this it what it says in your manual as well I would take it along to the dealer with your receipt and query why you have been charged for an extra 0.5 litres of oil. I would also check the amount in the engine following what it says in your manual to make sure they haven't overfilled it.

    Throttle needle vs airscrew adjusting - 2stroke

    in Yamaha Workshop

    Posted

    The airscrew doesn't raise the slide, that is done by the throttle stop screw. The pilot airscrew alters the mixture for the idle circuit. The screw is usually a tapered screw which restricts or derestricts the air for the idle circuit which usually means when you screw it in it makes the mixture Richer or when you screw it out makes it leaner. Most manuals will give you a base setting to start with i.e 1 and 1/4 or 1 and 1/2 turns out from being screwed in until lightly seated. As with most carbs there is a certain amount of overlap between the different circuits.

    relay arm dt 125r

    in Yamaha Workshop

    Posted

    I think he means the torsion bar from the rear wheel/brake to the frame, not sure till he comes back!!

    He probably means the Relay arm as shown under the "Rear Arm" section item #13 in DirtDT's parts link

    Punctures

    in The Bar

    Posted

    I seem to remember the stuff wild foamy is on about was called "OKO" that was put in the tyre before you got a puncture and was supposed to seal the hole when you got a puncture. Seem to remember it was only any good on tubeless tyres not ones with inner tubes fitted. Also remember when you came to change tyres that had been filled with it it was horrible stuff to clean off the rims before you installed a new tyre.

    Tony

    Smoked indicators for YBR

    in The Bar

    Posted

    Why would you want to change to smoked lenses? Surely this is just asking for some car driver to shunt you up the a##e as your going to turn right and then to say sorry I didn't see your indicators. And don't be surprised if this happens and your insurance company refuse to pay out as you've changed the lenses from standard.

    Rear footrest Bolt thread size

    in Yamaha Workshop

    Posted

    UJM bolt sizes are 4mm 6mm-8mm-10mm12mm 14mm 17 19 21 with a 1.25 pitch normaly,, if you can fit a wrench on the threaded area of the bolt then thats the size. And what ever size wrench fits the hex end the bolt is 2 smaller normaly,some bolt manufactures aftermarket make the hex head bigger by 1 mm.So where your original bolt had say a 12mm head the aftermarket will be 13 avoid useing any bolts like that as they are not as strong.

    Metric bolt sizes Won't be all 1.25 pitch across that range of thread sizes. 4mm can be 0.50 or 0.70 pitch, 5mm is usually 0.80 pitch, 6mm is usually 1.0 pitch, 8mm can be 1.00 or 1.25 pitch, 10mm can be 1.25 or 1.5 pitch and 12mm can be 1.5 or 1.75 pitch. This is only a general guide as some bolts have different pitch sizes depending on application.

    Tony

    How do I replace the exhaust mounting damper on an LCII?

    in Classics

    Posted

    I did mine a few years ago on my LC2 by taking the footrest hanger off and finding a socket with the same diameter as the outer bush in the hanger that the rubber part is supposed to be attached too and putting another socket slightly bigger behind too support it and putting it in a vice and slowly tightening the vice to push the bush out. You could also try taking out the rubber damper and maybe using a hacksaw carefully cut a slot in the outer bush so it splits the bush then carefully tap it out. Hope this makes sense.

    Tony

    • Like 1

    Be careful of Compression Stabilizer with carbs

    in Yamaha Workshop

    Posted

    Is this one of the floatbowls of the 350LC ? If so don't worry one of the floatbowls is blocked off like this. The one that is blocked off as in your photo goes on the RH side carb and the one with the hole goes on the LH side carb (choke side). If you get them mixed up you will find you will have trouble starting the bike cold with the choke on as the fuel is drawn up from the LH float bowl then transfered to the RH carb via the rubber link pipe between the carbs.

    Tony

    Carb slide stuck

    in Yamaha Workshop

    Posted

    I had a similar issue on my LC2 where the carbs had been left with fuel in and the floatbowl drain screws had stuck in caused by the gum/varnish. I boiled a kettle and filled the bowls with hot water and it loosened the gum enough to get the screws out. Could you try pouring some hot water around the slides without cutting the cables first to see if that will loosen them. By the look of the intakes the carbs look like they will need a good cleaning inside anyway.

    Tony

    RD350 F2 front footrest

    in Yamaha Workshop

    Posted

    The footrests are held on to the hangers by a single nut at the back. Not sure if you can get a spanner in there without taking off the hangers. If you do you just have to remove the exhaust bracket bolt and nut that holds it to the hanger and remove the two bolts at the front of the hanger which I think are Allen type bolts and it should come off. When you take out the exhaust bracket bolt it's best to find something to support the weight of the exhaust at the back if you don't want to take the exhaust right off to save putting strain on the exhaust flange studs.

    Tone

×
×
  • Create New...