SOURCE: i have a yamaha dragstar
If it has been sitting for a while I strongly recommend you remove the carburetors and clean them thoroughly, you will need to make sure you remove all the jets, especially the pilot jets because that is the smallest jet in the carb that will plug and it is often the one that will prevent the engine from starting.
Try using some WD40 in the back of the carbs when you try to start it after you clean the carbs. I don't like to recommend starting fluid because it is volatile and can easily catch on fire if the engine backfires.
I'd also recommend replacing the spark plugs as well. Make sure you have good fire. (turn the motor over with the plugs out and grounded on the head to make sure you can see the spark)
I also recommend pouring a small amount of Marvel Mystry oil down each spark plug hole to help "reseal" the rings. Remember that sitting is not your friend and you may have to get the rings back to life by using the special oil.
Just remember you need three basic elements to make an engine run:
If you have all three of those and compression your engine will start.
Let me know if you have any further questions.
Regards,
RSelvy
SOURCE: i have a yamaha xvs 650 dragstar converted to a trike
bike needs a new battery. battery is no longer capable of holding a full charge no matter what a trickle charger says. batteries wear out over time. expect 2-3 years from a motorcycle battery.
the clicking sound you hear is the relay flipping between open and close as it tries to get the right amount of amperage to turn the starter.
SOURCE: timing chain tensioner adjustment
all v twin engines are noisy, if you could totally silence the exhaust noise, you would be horrified how awful the motor sounds, it could probably do with the cam chain tensioner ADJUSTING. i wouldn't think it would need replacing. unfortunately the manual only recomends this being done by a qualified tech, i have a xvs 650 with same trouble. i would adjust myself if i could find out the correct tollerences.
SOURCE: I have a yamaha vstar xvs 650. there is a noise in
Try tapping the spokes, if one is loose you'll know it. Check the oil in your driveshaft head.
Picking the Star up to get the wheel off the ground is a chore but you (and a few strong friends) might have to do just that to investigate the noise more fully. With the wheel in the air you can wiggle and listen.
BTW, are you sure it isn't the rear caliper?
SOURCE: worshop manual for a 1981 Yamaha XJ 650
here you go buddy
http://www.pro-bike.ro/forums/index.php?autocom=downloads&showfile=681
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