Daniel Moulton
XS400 Member
I know the xs500 is a bit of a downer in the XS line but I cant find a forum for them, so I hope youll accept me.
I am working on a 76 XS500 cafe. I picked up the bike up for $100. After a lot of work I tested to see if it would run and I got it running enough to give me the confidence to keep going.
Im now at a point to get it started again but she wont turn over. I get a backfire(misfire?) while using the starter fluid or when I use the kickstart from both cylinders but thats about it. I have a checklist of things it could be and checked off just about all of them.
New starter solenoid
New spark plugs
New spark plug wires/boots
Good spark
New petcocks
New fuel line/filters
Brand new carbs w/ new jets (Mikuni 34M)
New pod air filters
Carb bowls full
Fuel Air mix screw is out 2 turns
idle screw is out about halfway
Choke in
Good battery charge (Antigravity 8 cell)
throttle assembly working correctly
Starter motor works (although it sounds a bit slow but I may just be going crazy)
Oil is clean and full
Tested compression and its well within the recommended range on both cylinders
No fuses blown (Using the Motogadget M Unit)
Im at a loss. The next thing ill try is removing the starter and taking that apart to see if anything is going on there, but is sounds like its not getting fuel making a "Chug-A-Chug-A-Chug" while occasionally giving me a giant backfire. Any advice or direction would be amazing
I am working on a 76 XS500 cafe. I picked up the bike up for $100. After a lot of work I tested to see if it would run and I got it running enough to give me the confidence to keep going.
Im now at a point to get it started again but she wont turn over. I get a backfire(misfire?) while using the starter fluid or when I use the kickstart from both cylinders but thats about it. I have a checklist of things it could be and checked off just about all of them.
New starter solenoid
New spark plugs
New spark plug wires/boots
Good spark
New petcocks
New fuel line/filters
Brand new carbs w/ new jets (Mikuni 34M)
New pod air filters
Carb bowls full
Fuel Air mix screw is out 2 turns
idle screw is out about halfway
Choke in
Good battery charge (Antigravity 8 cell)
throttle assembly working correctly
Starter motor works (although it sounds a bit slow but I may just be going crazy)
Oil is clean and full
Tested compression and its well within the recommended range on both cylinders
No fuses blown (Using the Motogadget M Unit)
Im at a loss. The next thing ill try is removing the starter and taking that apart to see if anything is going on there, but is sounds like its not getting fuel making a "Chug-A-Chug-A-Chug" while occasionally giving me a giant backfire. Any advice or direction would be amazing