Question about 1993 Yamaha XV 535 Virago DX
I am intend to use siver brazing rod as the needle as it is about the same hardness and is the right diameter.
Hi, Carl for this situation I would call my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Carburetor Set up 101
Yamaha XV 535 DX Virago Service Manual
OEM parts for Yamaha
Posted on Jan 08, 2017
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Posted on Jan 02, 2017
SOURCE: 91 kx 250 stock carb setup.
Low speed screw 1.5 turns out from bottomed. Middle position for clip #3 position.
I never rely on the factory settings for the low speed screww, set it to factory and keep adjusting it 1/8 turn at a time until idle sounds best and quick throttle blips dont sound "stumbly" the later being the most important.
The needle position is for low altitude.
Posted on Jan 26, 2009
SOURCE: Cleaning Carb Jets
not to a trained ear also go by rpm and spark plug color
NOTE: use copper wire to clean jets, sync is just thottles are same position as all carb's just leave them adjustments alone will be fine if are out use a 1/8 drill an place in between piston/butterfly to carb bore to sync/calibrate
better use a manometer for adjusting screws
depends on condition of org parts
worn = richer running
new = lean an clean
also if changed the exhaust system need to
re-calibrate carbs for max performance
Posted on May 09, 2009
SOURCE: How do I re-jet my carbs?
Basic setting for idle adjustments is ~1-1/2 to 2 turns CCW from CW stop. New stock (paper) air filters don't require re-jetting--only K&N foam replacements require one size bigger main jet. Adjust each carburetor idle screw for smoothest idle. Each screw should be about the same adjustment--if one is non-responsive, that carburetor may need internal cleaning. Make sure you have good spark plugs and the ignition points are clean and set to proper clearance. The ignition coils on these old Honda's were typically weak--try to find a modern replacement. The carburetor slide needles should have the 'C' clips in the center groove. Make sure the retainers are down tight. Check the engine valve clearances (about 0.003 " cold) for both valves when the crankshaft is set for TDC when that cylinder is coming up on compression.
Posted on Aug 11, 2009
Turn the adjusting screw all the way in until it LIGHTLY seats. Now back it out one and one half turns. Do the same adjustment for the throttle screw on the right side of the carb. You are now back to the stock factory settings.
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Posted on Sep 20, 2009
to start with you need to purchase a jet kit. it will come with instructions. the stock needle is non adjustable. also you need bigger jets.
Posted on Jun 02, 2010
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