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1. One year old fully charged battery, based on specific gravity of cells, won't crank starter. A jump from my tractor battery or a booster battery cranks it just fine. Maybe battery damaged, not passing load test or too small? 2. Bike starts fairly easily, with kickstarter, when cold, but will...

I have just rebuilt my carbs and stumbled across mention of the "Dead Cylinder Method" of setting the idle mixture screws. I know that is not the correct terminology for the screws, but don't know what else to call them. Anyway, the reference I found said I could find the "Dead Cylinder Method"...

Well I scored myself an XS650, a 1978 Special, and I've started the process of getting it road worthy. After tackling a rebuild of the fuse box I decided to rebuild the petcocks since one was leaking pretty badly. I've read many threads here on the pros and cons of rebuilding vs. replacing with...

Looking for the stock grab bar for a 1978 XS650 Special as shown in the attached picture. Have what I believe to be an OEM Yamaha sissy bar in excellent condition if anyone is interested in a trade.

I know this is a difficult question to answer with the small amount of information I'm about to provide but I value the opinions of the experienced XS650 buffs here and am just looking for a general idea. This would be my first XS650 purchase since 1972! My original goal was to buy a bike that...

My first post on this great forum. I'm looking at, what I'm being told is a 1979 model, the title does back that up. I would like to confirm that it is a 79 and also the model. I did read through the below referenced post of 650Skull on the various models for each year...