1976 Yamaha XS 500 - Answered Questions & Fixed issues

in april 2013 i will be offering for sale new double row timing chains with master links for the yamaha xs500 and tx500. (or master links separately)currently having them [email protected]

Be patient keep working it get all the air out of the system.

walmart has the for 2.69

.2 thou

http://www.bikebandit.com/houseofmotorcycles/1976-yamaha-xs500c/o/m8265#sch210384

Points should be set at .014".

open the access cover to the points and look for the high position on the center shaft. You have to turn the engine slowly until this high lobe on the shaft rides at its center on the breaker points wear block. Once there (old trick) use a cover off of a book of paper matches, loosen the breaker point mount screw and use a small flat blade screwdriver (you will see a slot) adjust the points open, insert the piece of matchbook cover in between the contacts and use the screw driver to close the points just until there is a slight drag on the matchbook cover. Tighten down the breaker points screws and you are set. If the contact faces of the points are burned away, they need to be replaced. I use to mud bog with a Y360DT, great bikes

Oil is a 30 weight and you will need to fush out the carburator of old gas and fill the tank with new gas plus charge or replace the battery acid or replace the battery its sefe.

Carb removal is pretty straight forward. Everything attached to the engine including the the exhaust system,kick starter,gear selector, chain and sprocket needs to be removed and placed in an orderly fashion to aid in reinstallation. I'll be honest, you should pick a repair manual to help guide you thru this procedure. You'll be glad you did. Ebay and other sites should have a manual listed for your bike.

Try the link below, it has a massive bike-alog, with all components and colours. Start with the English version and enter make, then model, if link is not already in the Yamaha section.
Cheers.

http://www.rsbikepaint.com/en/colours.php?makeid=110

The 8 valve wasn't introduced until 1973. The TX500A ('73-74) TX500B (74-75)
The XS500 continued from 1976.
There is a number somewhere on the crankcases, the first three digits should be 371 if it is the first model TX500A 1973. The site below will give you the model of the engine by referencing these first three digits if it differs.
http://www.johnnystoybox.com/yamaha_parts_cross-reference.htm

http://www.cmsnl.com/tx500_model16814/info/ This site gives relevent model history.

http://www.cmsnl.com/yamaha-tx500a-1973-1975_model8477/partslist/ This site will give you exploded views of all components necessary for the engine/electrics etc.

http://www.mcnews.com/mcn/technical/MCNdec05charging.pdf This site provides layman terms for old school bike electrics/troubleshooting.

Let me know if it's solves your problem.
Cheers.

yes i think so..these bikes only had a short model run..the engines had a few problems!!

Best bet is to try and get a workshop manual ,or ask a dealer mechanic.It needs to be spot on or the engine will not run properly ,and could cause damage to valves if not done correctly.

You Have a bad battery connection some where..Maybe a lose ground?But its for sure a bad wire connection somewhere..Hope this helps and have a great day I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

Left is # 1.

Add it in the dipstick hole,bike level on level ground. I f you have changed oil put in 1 qt and check dipstick, then slowly fill from there checking level periodically as you go. buy 3 qts at the store, buy a quality motorcycle oil NOT car oil. I recommend Castrol Syntec Actevo 10-40wt...Good luck to you friend....Tim

set the cam marks lined up with the cylinder head along with the marks on te magnito lined up with the case mark

There is one more small wire you missed connecting, when you put the Positive, (Red), terminal on.
It should have a round metal terminal end, that has a hole large enough in it, for the Positive battery terminal bolt to go through.

Hi Smile,
please visit this site >>---------------> www.xjbikes.com


Knight. (Yamaha XJ759A 1981)

Hi Alanmarshall,

I guess the rear brakes system of your bike must be mechanical.
Remove the rear adjusting nut on the brake rod and thn try it , the wheel should rotate freely.
If no, thn theres a problem in the drum and the linnings.. you will hve to remove the back wheel and examine.
If after removing the adjusting nut at the rear rod it moves freely thn theres a problem frm the rod to the brake pedal.
Or it may have been tht the adjustment was too tight without a free play .

Hope this helps!

Knight (Yamaha Seca XJ750A 1981)