freemoRR
Garage Warrior
Hello all! Long time listener, first time caller haha
I'll start by giving a big thank you to all that have posted helpful hints and info on here. I've learned alot just by reading thread after thread after thread while doing my first xs build this winter. Saved a 71 xs1b from the scrap yard and turned her into quite a nice little hardtail bobber. I am, however, having an issue and I'm hoping that you esteemed elders may be able to offer some guidance.
Before I list the specs on what I've done, I'll preface with the issue. hard to start hot or cold (its kick only). if I give it the ole 2-stroke throttle roll on startup she'll get going and run ok. mid and upper ranges feels alittle sluggish but no popping, accel or decel. ride for about 15-20 minutes and the bike no longer wants to idle. will die at lights if I dont keep alittle throttle into it. engine is hot and plugs indicate a lean condition. so here goes, if I miss anything please feel free to point it out to me.
-new rings, cam chain and guides (adjusted warm, flush and 1mm movement, no noise)
-new boyer ign (red box micro) timed with dial indicator and degree wheel, no kickback on startup. no detonation or pre ign. light timed. its on.
-plugs B7ES, 5k suppression caps, wires, 4.5 ohm coil, all new.
-valve adjusted. .003 intake .006 exh cold as per manual
-compression 135 both sides
-tested charging system warm and cold, all working ok.
-not losing spark hot (coil ok)
-no smoke or soot (also leading me to lean)
-new VM34 carbs, 180 mains, PF9 needles clip #3 pos., 25 pilots, air jets removed, k and n pods (no rubber boot restriction) air screws 1.5 turns out,2.5 slides, synced. no idle hang, no air leaks, great throttle response in neutral. feels maybe alittle sluggish on accel.
-new battery
-new PM charging system
-rewired the bike from scratch. all new.
-idle set 1300 warm
-clutch adjusted to spec at case and handle (ie not a warm clutch drag, no bike lurching)
-new oil, 20-50
-stock front pipes with shorty megaphone mufflers (from lowbrow)-no leaks, baffled but still flowing alot more than stock I'm quite sure.
_float height adjusted to 23mm as per tuning manual (yes I've read it)
Bear with me gentlemen. mikuni carbs are new to me.
I'm thinking I need to up pilots and possible move needle clip? Am I on the right track? or out to lunch? If so, what would you elders recommend? 30s? 32.5? 35? needle up? needle down? I'm in Edmonton, Alberta. approx 670 metres above sea level, with an average temp of 25 degrees C (approx 80 F? for you yanks) in riding season.
I rode it today to get it to act up. came down the street strong and rolled it into my driveway. stalled within 5 seconds off the throttle. engine was pretty hot. pulled plugs immediately, bone dry and alittle too light for my liking. i should probably mention I am a licensed and certified master automotive and heavy equipment tech, so no need to dumb anything down for me! bikes and classics are just a hobby.
If I missed anything, please feel free to inform me. Again, thanks for all of your help over the last few months. You school alot of people without even knowing it. Just because we don't post doesnt mean we arent learning. thanks from a fellow XS guy in Canada.
-FR
I'll start by giving a big thank you to all that have posted helpful hints and info on here. I've learned alot just by reading thread after thread after thread while doing my first xs build this winter. Saved a 71 xs1b from the scrap yard and turned her into quite a nice little hardtail bobber. I am, however, having an issue and I'm hoping that you esteemed elders may be able to offer some guidance.
Before I list the specs on what I've done, I'll preface with the issue. hard to start hot or cold (its kick only). if I give it the ole 2-stroke throttle roll on startup she'll get going and run ok. mid and upper ranges feels alittle sluggish but no popping, accel or decel. ride for about 15-20 minutes and the bike no longer wants to idle. will die at lights if I dont keep alittle throttle into it. engine is hot and plugs indicate a lean condition. so here goes, if I miss anything please feel free to point it out to me.
-new rings, cam chain and guides (adjusted warm, flush and 1mm movement, no noise)
-new boyer ign (red box micro) timed with dial indicator and degree wheel, no kickback on startup. no detonation or pre ign. light timed. its on.
-plugs B7ES, 5k suppression caps, wires, 4.5 ohm coil, all new.
-valve adjusted. .003 intake .006 exh cold as per manual
-compression 135 both sides
-tested charging system warm and cold, all working ok.
-not losing spark hot (coil ok)
-no smoke or soot (also leading me to lean)
-new VM34 carbs, 180 mains, PF9 needles clip #3 pos., 25 pilots, air jets removed, k and n pods (no rubber boot restriction) air screws 1.5 turns out,2.5 slides, synced. no idle hang, no air leaks, great throttle response in neutral. feels maybe alittle sluggish on accel.
-new battery
-new PM charging system
-rewired the bike from scratch. all new.
-idle set 1300 warm
-clutch adjusted to spec at case and handle (ie not a warm clutch drag, no bike lurching)
-new oil, 20-50
-stock front pipes with shorty megaphone mufflers (from lowbrow)-no leaks, baffled but still flowing alot more than stock I'm quite sure.
_float height adjusted to 23mm as per tuning manual (yes I've read it)
Bear with me gentlemen. mikuni carbs are new to me.
I'm thinking I need to up pilots and possible move needle clip? Am I on the right track? or out to lunch? If so, what would you elders recommend? 30s? 32.5? 35? needle up? needle down? I'm in Edmonton, Alberta. approx 670 metres above sea level, with an average temp of 25 degrees C (approx 80 F? for you yanks) in riding season.
I rode it today to get it to act up. came down the street strong and rolled it into my driveway. stalled within 5 seconds off the throttle. engine was pretty hot. pulled plugs immediately, bone dry and alittle too light for my liking. i should probably mention I am a licensed and certified master automotive and heavy equipment tech, so no need to dumb anything down for me! bikes and classics are just a hobby.
If I missed anything, please feel free to inform me. Again, thanks for all of your help over the last few months. You school alot of people without even knowing it. Just because we don't post doesnt mean we arent learning. thanks from a fellow XS guy in Canada.
-FR