What kind of jetting does a Yamaha XS650 use?
The only way to know for sure would be to take them apart and look. Stock jets for your model are 132.5 main, 42.5 BS30/96 type pilot, 135 air jet, and a fixed nonadjustable needle. The usual re-jetting for minor mods consists of going 1 to 3 up on the mains and 1 or 2 up on the pilots.
Do you need to change carbs on Yamaha XS650?
If the carbs are clean and working fine now, you might not need to do that much. Probably a size up on the pilots and a size or two on the mains. Then play with the needle heights if you can raise and lower them (can’t remember which carbs have adjustable needles) and obviously set your mixture screws.
Who is the author of the XS650 garage carburetor guide?
The XS650 Garage Carburetor Guide Introduction This manual has been prepared by Grizld1 ( aka Dick Russell, Yamaha 650 Society Tech Advisor) and 5twins. Material has been peer reviewed by Garage staff (thanks, y’all!), and is as accurate as we know how to make it.
What to do with a Yamaha XS650 heritage special?
I recently brought a long neglected 81 xs650 heritage special back from the dead (got it back to 1 kick …). Im going to be cutting the mufflers off at the headers leaving about 3ft of open pipe.
The only way to know for sure would be to take them apart and look. Stock jets for your model are 132.5 main, 42.5 BS30/96 type pilot, 135 air jet, and a fixed nonadjustable needle. The usual re-jetting for minor mods consists of going 1 to 3 up on the mains and 1 or 2 up on the pilots.
The XS650 Garage Carburetor Guide Introduction This manual has been prepared by Grizld1 ( aka Dick Russell, Yamaha 650 Society Tech Advisor) and 5twins. Material has been peer reviewed by Garage staff (thanks, y’all!), and is as accurate as we know how to make it.
If the carbs are clean and working fine now, you might not need to do that much. Probably a size up on the pilots and a size or two on the mains. Then play with the needle heights if you can raise and lower them (can’t remember which carbs have adjustable needles) and obviously set your mixture screws.
I recently brought a long neglected 81 xs650 heritage special back from the dead (got it back to 1 kick …). Im going to be cutting the mufflers off at the headers leaving about 3ft of open pipe.
When did the Yamaha XS650 bike not start?
Discussion in ‘ The Garage ‘ started by inxs, Jan 16, 2010 . Bike wont start?, Running rough? First: What have you just done? What have you changed?
What should the header length be on a Yamaha XS650?
Pipe length is critical, the length of pipe from engine to muffler (or end) will change the power characteristics of the engine. Much of this work on the XS650 has been done for you a little googling will reveal ideal header pipe lengths for different engine power bands. Bluedew and KC 120 like this.
How many miles does a 1977 Yamaha XS650 have?
1977 Yamaha Xs650 , This bike runs and drives well and has a clean title. It only has 8000 miles on it and I am the 3rd owner. It is all stock except for the solo seat and boyer ignition. I have the luggage rack as well.
Why does my Yamaha XS650 bike not start?
– drain the oil, smells of petrol? the carbs have been leaking-floats are holed or not set properly or the float needle seat is compromised or the float needle o-ring is damaged, check and clean the filter screen as well
Where to set the cam lobe on a Yamaha XS650?
– set them at the highest point of the points cam lobe 0.012-0.016″ (0.30-0.40mm) against the points rubbing block