750 Help

[COOL TOM]

JUST GOT 80 750, NEED TO KNOW HOW TO TELL WHAT MODEL?ALSO NEED PARTS, HEADLIGHT AND CHROME RING, THROTTLE HANDLE JUST THE TWIST PART NOT THE BLACK BOLT ON PIECE, SIDE COVERS BOTH SIDES THE ONES THAT COVER THE BATTERY AND THE OTHER SIDE, BRAKE LEVER, SEAT COVER, FORK SEALS, AIR FILTERS. THIS IS AT A QUICK GLANCE WILL KNOW MORE LATER WHEN I GET IT HOME. FORGOT TO WRITE DOWN SERIAL NUMBER. IF SOMEONE HAS PICTURES OF AIR FILTER SYSTEM COULD YOU POST THEM. NO FILTERS ON BIKE, CARBS ARE OPEN. ANY TRICKS ON REBUILDING CARBS OR ARE THEY JUST LIKE AN 1100? ANY OTHER HELP OR HINTS WOULD BE APPRECIATED.
THANKS GUYS FOR ALL YOUR HELP!





82 XJ1100 AHAMAY DAILY RIDE
80 750 BEING REBUILT

[prometheus578]

Carbs are the same on any bike, regardless of make or model. They all clean the same. Only difference is setting float height, or pilot screw settings.
Float height I believe is 17.5mm +/- .5mm.
Fuel level is 3mm+/- 1mm, measured outrside the carb, against the bowl with a clear plastic hose.
I show no setting for the pilot screw....so make sure to count how many turns it's screwed in when removing it to clean.
Oh, one last thing... get the manual.

[John]

Well Now

In '80 the triple was up sized to the 850. There are a lot of parts that will interchange with the 1100. Look in ebay for the parts that you need, like side covers and air box, The 850 headlight bucket is different from the xs750, but it is the same as an 1100. The throttle assembly is also the same, and you don't need to replace the right side handlebar switch. The sidecovers are different from 750 to 850.
Look here for the part numbers that you need for your bike, then compare them to other models. http://www.yamaha-motor.com/sport/my...tarthere.aspx.
The first three digits (2H7, 3J3, etc ) are important. That tells you what model the part first appeared on, and even if the part was used on a different model, it will retain the prefix (2H7, etc) unless the part is modified , then that will show up in the last four digits. If the prefix is different, and the base part number is the same, then it is a different part.

[COOL TOM]

OOPS

YOU WERE RIGHT ABOUT UPGRADE FROM 750 TO 850. BUT WHAT I FORGOT TO MENTION WAS THIS IS A V TWIN 750. MADE IN 12/80 TILE SHOULD SAY 81, HAVE NOT SEEN TITLE YET. WHEN I LOOKED AT THE DATE I JUST SEEN 80 AND SAID IT WAS 80. LOOKED ON YAMAHA SITE APPEARS TO BE 81 XV750H. HOW RELIABLE/DURABLE WERE THESE BIKES. DO NOT KNOW WHETHER TO FIX AND RIDE OR TO SELL. THIS WILL BE JUST A SPARE PROJECT TO PLAY WITH. AM ALSO TRYING TO GET 83 V65 HONDA
1000CC.







82 XJ1100 AHAMAY DAILY DIDE
81 XV750 TO BE REBUILD ( NO NAME )
79 GOLDWING ( SOLD )

[prometheus578]

Early yama V twins have probs with their starters. You know.... I just found the tech bulletin when cleaning the garage last week. "Naw... I don't need to keep this thing handy, I don't even OWN one."
I just looked for it... filed it somewhere.
Can't recall years and models affected. Starter gear wouldn't always engage. The remedy was, if I 'member correctly, to add three shims to the starter. Starter spins the engine, then disengages before it has a chance to fire.
'bout as reliable as anything else, I figure
Hell getting the carbs off, like the early Kawa V twins. Have to remove the carbs with one of the manifolds attached. You'll need to take an old 10mm wrench, put it in a vise, and bend the open end at an angle to fit in there better for the upper manifold bolts.
(This is all that I can recall with my faulty limited memory)
Yama still sells the shims, at least they did last year.

[Geezer]

Early Viragos had 2 starter problems. The first is the anti-backfire clutch in the starter would slip like crazy and the other is the 2 engagment gears wouldn't slide out.

Shimming the starter will only take you part of the way and then they still slip. I always used loctite on them.

There are 2 funny looking spring clips on the engagment gears and when they loose tention there isn't enough drag on the gears to make them engage. I used to crimp them with a vise grip and it was usually good for a year.

There is no permanent fix for these starters and it isn't so bad that I'd turn down a 900 Virago Euro model if I found one. I almost bought a left over one back in 84 bur I put my Guzzi back on the road (tangled with a cage and lost) instead.

Geezer