Search results

I see said the blind man..... Are you selling that set?... smile thanks gil

Where would the stamp code be on the valve cover component? I'm guessing these numbers are for boring of cam lobes. That said, I would think the odds of finding a cylinder head to match a valve cover would be difficult. Bottom line I need a matched set to replace the one the machine shop...

So if the cylinder head is the same, my 81's valve cover should fit and therefore meet any upper motor mount concerns. This brings up a question. Are the heads and valve cover (rocker arm assembly) machined as one unit. Can I mix (without machining) or plug and play a cylinder head and valve...

does anybody know for sure if the heads of a 79 will work with a 1981 motor? If so which parts from which bike engine must I retain? thanks be well gil :confused:

I'll cross reference them tomorrow and get right back to you. Thanks gil

Seeking the following items, if you've got em and want to sell em let me know thanks. One main needle (stock) if not two matching aftermarket Idle adjustment screw washer and o-ring Two new float valves (hanging pointed pin) Cafe type handle bar, but with low/small offset Good...

Scott, thanks but will wait it out on e-bay as my price is around 65 shipped. Have seen a few go at this price, but I haven't bid yet because the project hasn't reached this area yet. thanks again gil

I need a set of carbs, any year from 77 to 81 in good running condition. If you have a set, will you ship carbs or is this too pick up only. Thanks gil

Like title say, I need a cap for a 1981 xs400. Not specific as long as the thread are correct and is suited to this engine, let me know how much, gi :thumbsup:

Looking for a filler cap for a 81 xs400. Does anybody know what other years have the same thread and size that will fit/work? thanks gil

Hello everybody.... I figured out how to get better performance from a XS400. Get a XS650..... smile. Love the 400, but because it won't do 100 (easily, reliably, comfortably) without investing too much and/or overstressing the engine I'm now in the market for a 73 to 77 xs650. Although...

Sorry for double posting, can somebody delete one? By the way XSChris, check out the 1982 dyno sheet I posted from Cycle Magazine (PDF) earlier. It shows the 400 @ 29 HP on their Dyno, which maybe the just use provided numbers. Again all fine and dandy, but where did the 11 hp go from...

Agreed XSChris, strange though how they would drop (restrict) the HP by 11 hp from 38 to 27. I know the early post 70 muscle cars fudged the numbers to get by insurance issues, but bit did mortorcycle have to go through the same issues in the late 80's? I did some comparisons with available...

Agreed XSChris, strange though how they would drop (restrict) the HP by 11 hp from 38 to 27. I know the early post 70 muscle cars fudged the numbers to get by insurance issues, but bit did mortorcycle have to go through the same issues in the late 80's? I did some comparisons with available...

Has anybody ever dyno'd one of these bikes? Still curious about the HP rating as I find three different ratings each for three different years. I definitely don't like the sound of 27 HP, good this I have a Modified V-Max for my speed needs. :shrug:

1977 xs400e starter turns over nicely, even starts it every now and then. But kick starter always starts. Compression 115 lbs dry. Spark is not that strong, but when running no issues; spark visible but not what I'm used to seeing. Carbs clean. Needs 2.75 turns on the pilot screws. Stock air...

Hey guys, was reading through the tech manual and saw that the 1981 doesn't have a pilot or idle screw adjustment. Is there a way to alter/manage via jets or other means. If not is there a benefit to replacing the cab with a pre 81 carb. I will tinker later as I put on pods and exhaust. Finally...

OK guy's I found a 1982 copy of CYCLE and the attached pdf's shows a (their) comparison of four bikes, with the Yamaha being the only 400cc in the group. The Yamaha they are reviewing is the XS400SJ, which I am not familiar with. I guess its for the 1982 XS400 as the magazine was printed in...

sorry I meant for Scorpio....

Sly new to this forum and chat site stuff. Whats x1? hope its something good... smile