idle issue

I'm having an issue with my idle staying consistent. I've cleaned the carbs and adjusted the pilot screw 2.5 turns as the manual suggests just to ensure everything is at spec. However the problem still persists.. I've attached two videos of the issue. Delayed Throttle Idle Increasing without...

Hello everyone! I've got a 1977 XS400D with 19000 km on it (or so my speedometer says) the bike and engine is in great condition visually, carbs are in great condition as well. Im the first one to register this bike in Canada so theres literally no record of it prior to May 2021. When I...

Hi all, I just bought a a 1980 xs400 special. I love everything about it. Except for the fact that it died the day after I drove it home. It kept acting like it had run out of fuel. (Yes there was fuel in it and yes I switched it to res.) All that to say, I’m pretty handy, though this is my...

Hi all, I've been fixing an old xs400 (1978 xs400f) I got a while back and finally have it registered and warranted (NZ) however I've had a constant issue that I just can't seem to fix. The bike runs well and has good power, but the revs will hang when you touch the throttle (not always) once...

A few months ago I purchased a 1977 Yamaha xs360. The bike was in a very rough condition when I bought it so i spent these last months rebuilding nearly everything. I'm running stock-ish (not open) exhausts and the original carbs with pod filters. I replaced the #130 main jet with a #135 to...

hey guys, in need of some advice. bike is stalling while idling; have messed with idle screw in between carbs but bike is still getting hung at high rpm's when revved. could be loose throttle cable? additionally, i noticed my engine seems to have a large gap where I believe there should be a...