Really sharp looking XS750, wish I had more room... https://dallas.craigslist.org/dal/mcy/d/dallas-vintage-1979-yamaha-xs-750-sx/7642721571.html
Confirm the vacuum plungers move freely - I also used the needles and emulsion tubes from a kit which turned out to be the wrong size and bound up...
When you're taking the forks apart do yourself a favor and swap in some Progressive Suspension springs, they ride so much better than the OEM.
My XJ650 is the same way, carburetors meter fuel better when they're hot. For the first few minutes it wants to die at idle unless I blip the...
The 412 series, heavy duty spring rate.
Not a 750, but a set of Progressive Suspension shocks in the rear and springs in the forks vastly improved the ride on my XJ650.
Got to do a brake lock-up test when some dunce started to turn in front of me at an intersection. Luckily I was putting along ~25mph through an...
I second reusing the jets and needles. Kits for these carbs are hit or miss. The kit I bought had the wrong size needle (it was larger and would...
Try checking for vacuum leaks by spraying carb cleaner at each of the throttle shaft ends and around the intake boots, whenever carbs are acting...
With hand controls as long as they fit on the handlebars if there's the will there's a way. Check out...
I'm not an expert on these XJ engines, but in the hot rod world you can buy timing sets to advance or retard the valve timing by 2° - 6° so the...
Geared for a time when the speed limit was 55 so now that it's 70 or 75 she's up on the pipe a bit
Spray some PB Blaster or Free All into each cylinder, reinstall the plugs and crank it for 10 seconds or so, if the rings are sticky that should...
I calculated my Xj650 is getting right at 49 mpg on the last two tanks of fuel.
The XJ750 (allegedly) makes 20 more hp than a 650 with the same head and cams. An 820cc overbore may not be common but kits do already exist. If...
I have no experience with hotrodding Yamaha inline fours but have fooled with small block Ford v8s and head work really doesn't make much...
https://magazine.cycleworld.com/article/1980/7/1/yamaha-xj650-maxim-i "Showing the Maxim's cylinder head to some riders not prone to forgetting...
I took the old hoses to a local hydraulic shop and they recreated them in about 15 minutes. IIRC there are some braided hoses on amazon for a...
Check for vacuum leaks by spraying carb cleaner on each of the throttle shaft ends and around the intake boots.
Installed a modified shifter pawl arm, new gasket and oil seal from xj4ever, along with an oil/filter change (Lucas 20w50 conventional m/c oil)...
Have you checked for vacuum leaks? Try direct spritzes of carb cleaner at the end of each throttle shaft, around the intake boots etc..
Try buffing it out, worst case SprayMax offers an aerosol 2K Glamour Clear product - you can get it off Amazon or at an automotive paint supply...
My god, the streets in Dallas are absolutely littered in garbage. Went out to ride this a.m. but picked up a nail in the rear tire at some point...
Roger that, over time floats can absorb fuel and sink.
Took a two hour joy ride around town and am still amazed at how much better it rides with the new fork springs. Night and freaking day difference...
Took a buffer and some rubbing compound to the tail light housing and it's nice and clear again.
Installed Progressive Suspension 11-1106 fork springs and fresh 15w fork oil. Raised the front end at rest and the ride is noticeably better.
Just the Permatex
I used this: https://www.permatex.com/products/gasketing/speciality-gasket-makers/permatex-motoseal-1-ultimate-gasket-maker-grey-2-7-oz/
The Emgo flat track high bars feel pretty nice. They're 3 inches wider than the Classic bars and have a slight downward bend that I like better...
Get a manual, it will have wiring diagrams, etc.. This site has parts diagrams for most Yamahas https://www.cmsnl.com/yamaha-motorcycle_model16707/
Soaking in vinegar or acid will remove the rust, etc.. I did that then used the Por-15 tank sealer kit and so far the tank still looks new inside.
My 82 XJ650 had the wrong TCI - TID14-02 vs. the stock TID14-06 so I got one of the Carmo digital ignitions. So far it works great. The case is...
Per the Haynes manual the float height should be 17.5mm +/-.5mm and idle speed 1050 +/-50 rpm. Have you synced the carbs?
Roger that, based on the stock specs I'd think punching it out to 820cc - with the inherent compression boost - along with some porting/polishing...
You can use small washers as shims to raise the needle and get to the tapered area sooner when the plunger rises.
Must be something in the water in Houston https://houston.craigslist.org/mcy/d/sugar-land-yamaha-seca-xj900r-red-1983/7603630948.html
I could not be more pleased with how this little escapade turned out, I may die from priapism. [IMG] Before and after [IMG] Turns out the rear...
Check for any vacuum leaks around the intake and throttle shafts.
Before removing the carbs, etc. get some carb cleaner, start the machine and spray the ends of the throttle shafts, around the intake boots,...
Spoke wheels! [IMG] [IMG] [IMG]
Muchas gracias, amigo! Had to hold the driveshaft in a vice and tug pretty hard but they are now divorced. Splines look good so far as I can tell.
I pulled the final drive off my 82 XJ650 and the drive shaft came with. It should be easier to reinstall if the drive shaft were separated from...
It's always the little things. Got my hands on an XJ1100 perch/clutch lever and it works great...except the mirror mount is at a verkakte angle...
Right, I had the upholstery shop bring the front lip of the seat back about a half inch so there's a bit more space and it doesn't press against...
[IMG] Slapped the tank back on and took her for a spin. Need to wait a couple more weeks to wax the tank and reinstall the tank emblems.
The Vulcan 500 is a pretty nice looking machine, should be fun.
Unless you're working with machines that have good demand and resale value it's a labor of love vs. a business model. When it's all said and done...
Roger that, I did the hot water immersion trick with the base and clear. The clear has a smaller aerosol compartment you puncture from bottom to...
Last night used a Colortune plug and rented Carbtune Pro/YICS tool to get the carbs dialed in. Today, sanded and polished the paint on the fuel...
