WelderDave
XS400 Addict
The Mikuni or the mixes XS carbs I had on there would have the same effect of revving out, and I’m just not understanding something. I try to get the highest idle, but there’s a point where it just jumps up to 4500 rpms.
Everything I’ve looked up, this shouldn’t happen. Now, everything is driving fine from 1/4 throttle to wide open, she runs beautiful, but something just can’t be right with the idle circuit. I can get it to idle, but a quick snap and the engine just seems like it misses and one time it died in the road.
I do not have the Mikuni carbs anymore on the bike, but speaking carbs in general here as far as tuning, am I running to lean? Because it smells rich, and if I richen the mix, it takes off, if I lean it out I can get the idle to settle down.
In my way of thinking, I add more fuel it takes off, if I allow more air and reduce fuel it will steady at a proper range but it doesn’t make me feel good knowing it isn’t a smooth throttle response and half the time it dies unless I’m slow on it.
Here’s the kicker, if I use choke, it dies. I don’t get it. And I should also mention, I can start the bike without choke in 1 kick. Temps here are anywhere from 60 at night to 80 during the day, and don’t seem to have an effect.
Please help!
Everything I’ve looked up, this shouldn’t happen. Now, everything is driving fine from 1/4 throttle to wide open, she runs beautiful, but something just can’t be right with the idle circuit. I can get it to idle, but a quick snap and the engine just seems like it misses and one time it died in the road.
I do not have the Mikuni carbs anymore on the bike, but speaking carbs in general here as far as tuning, am I running to lean? Because it smells rich, and if I richen the mix, it takes off, if I lean it out I can get the idle to settle down.
In my way of thinking, I add more fuel it takes off, if I allow more air and reduce fuel it will steady at a proper range but it doesn’t make me feel good knowing it isn’t a smooth throttle response and half the time it dies unless I’m slow on it.
Here’s the kicker, if I use choke, it dies. I don’t get it. And I should also mention, I can start the bike without choke in 1 kick. Temps here are anywhere from 60 at night to 80 during the day, and don’t seem to have an effect.
Please help!
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