how long between carb tunings?

[greg maz]

it's been close to 2k mi. since first & last

mostly in town, behaves good on highways, backfires a bit on decel

great bike

factory brakes are a joke

[egsols]

Mr. Clymer says every 6 months/2500 miles to sync carbs and every 8000 miles to dismantle and clean carbs.

I sync everytime I take them off or do anything with them.

Never synced them on my first xs, but then I didn't know how good they run when they are synced.

[greg maz]

is the running lean / backfire on decel any real harm?

me think one of the flaps is bit low on idle

[dbeardslee]

Greg - I always get a back-rap on hard deceleration. Shouldn't be a problem. I've even heard tell that that's the way they're supposed to run. Lean? Depends on how lean. On an automobile engine it can burn the valves if it's too lean, but I don't know if that applies to XS's.

[egsols]

I get lots of popping on decel. Believe its normal. Look at the race cars with the open exhaust, flames on decel. I think the more restrictive exhaust on cars, etc., hides the fact that exhaust gases are still burning after they leave the motor. I'm no expert though.

[greg maz]

hard decel or not, little bit of popping

if no real biggy on valves, can I take 1500 mi ride on it?

[oldyam80sg]

I had that problem-back off your screws by 1/4 turn- that cured my popping

[greg maz]

thx

altogether I'd better snap the gauges on huh

spend fifteen off of it & at it

was just curious to know about the consequences

[oldyam80sg]

I would try turning the screws out a hair.I don't think it would hurt.