Recent content by walterfrancis69

I recently started a thread on same issue. My 1981xs400 would idle within a normal range only briefly before the revs increased to the point i would shut engine down. At a loss myself, i finally disassembled entire carb assembly ( floats, float needles, float valve seats, main jets- needles...

@XSchris- thanks for info. I dont run engine with plug wire removed. I do on occasion run engine with spark plug removed and grounded to frame, plug wire still attached. I believe this to be acceptable when diagnosing ignition issues. Im in a good mood because my shop manual has arrived. Im...

Afterthought- when i purchased bike, throttle cable was broken and starter pushbutton did not work. I replaced cable with oem. I wired a switch across starter solenoid. With that, bike ran as follows: with left side spark plug removed from cylinder and grounded to frame ( wire connected to plug)...

@Levdir/Xchris-im really appreciating this forum and your responses. My bike is 1981 xs400cc. It is recently purchased and is running better than when i bought it. Its appearance is far better than when i bought it. Carbs are missing filters and exhaust is open. Air filters will be installed...

@ levdir- im sorry to report that i yet to learn how to properly adjust my carbs. I have a shop manual on order. Without illustration and exploded views, the most i can accomplish is a float adjustment and a cleaning which has been done. I dont use full choke exclusively. Even at half, the...

Bike operates as follows: Ignition on, killswitch on, headlamp on, start button depressed, engine starts and starter motor properly turns off went button is released. Next, during warm-up, engine will automatically rev too high( no tach on bike). This increase is easily 100% of initial idle...

@Arfstrom. Thanks for your reply. I just completed two days of troubleshooting with interesting and positive results. I traced my starting issue to the pushbutton itself. What i did first is verify the horn pushbutton functioned properly. Next, i located the wire ( pink) leading from horn...

First off, im happy to see my words and response on this forum. Im a nut and bolts guy ( boiler mechanic) and im usually playing catch up with wireless technology. I will improve as i spend more time on forum. Now, onto what brought here in the first place. As i previously described, my 1981 xs...

The following occurs on my1981 xs 400. I currently have starter solenoid jumped out with temporary switch . Push button ( blue wire) on throttle assembly hangs up and does not disengage starter motor with dependability. Engine idles well on right side cylinder only ( spark plug wire removed...