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I've got a freshly rebuilt top end. I have run through a series of torques and break ins. I replaced the 4 outer washers with thicker copper washers. The inners are still steel. I checked the compression recently and was getting 120 left, 140 right, so I decided to do another torque and valve...

Make me a better deal than Mikes please!

Jetting issues after head rebuild / and mixture screw issues I have a 1980 XS650 with pods and BUB exhaust (welded in baffles). After rebuilding the head, my bike seems to be running really rich and sputtering. It currently has 145 mains (that seems big) and 45 pilot. Stock is 132.5 and 42.5...

1980 XS Fresh top end job Everything tightened and valves adjusted. Custom simplified wiring. Ran great until head gasket blew. Rebuilt top end. Starts right up in neutral, and revs strong. When I put it in gear I make it a few yards, it sputters, and dies. I thought it might be the...

Just throwing it out there to see if anyone has one.

I need some help diagnosing this 1970 XS1 I'm trying to resurrect Rebuilt Solex carbs, bigger jets (ditched rotten air box) 45 pilot, 140 main, 1 turn out on mix screw Did cam chain, valves (xs1 spec), head torqued, new plugs, got bright spark Only points/condensor/plugs hooked up, stator/rotor...

I've got a '70 XS1 that has a Kawasaki dirt bike front end on it, just so it can be moved around. I measured the neck, and it's about 8 to 8-1/8" long. I just happened to have a '72 CB360 drum front end laying around, the neck on the CB360 is 8-1/8" as well. I can't use that front end, but...

One of my float bowls on my XS1 is fubar'd. I can get a whole set of carbs on ebay but was hoping someone might just have a float bowl they'd sell me.

I did a search and couldn't find any info. http://www.ebay.com/itm/74-76-YAMAHA-XS650-75-5mm-PISTON-SETS-0-5mm-OVERSIZE-2-PISTONS-INCLUDE-XS650-1-/140912048083?pt=Motorcycles_Parts_Accessories&hash=item20cf0337d3&vxp=mtr Are these sets for $80 any good or do I need to spend $180 for rings and...

I'm guessing I put about 10,000 miles on my '80 XS over 6 years. The head gasket blew (probably because I never re-tightened annually). I pulled my head off and decided to do rings too. The barrels have very prominent honing marks, almost look new. I measured my barrels on the thrust sides...