Is there a oil filter on a yamaha 185 exciter, and when bike starts the idle is way to high, when warm way to low when adjusted, and floods way to easy

SOURCE: 1968 Jaguar E type Carb problem

notorious for being very hard to time both carbs ..sim. probs.haunt many multi carb . set ups just ask any one with old triumphs .if carbs have never been rebuilt i think it might be time .if they have it might be time to replace .if replacing try finding ones with a fule management system.

SOURCE: Idle adjustment

If there is not a screw on the side of the carb then look at the top of the carb where the throttle cable connects. The fitting at the top of the carb is threaded and would adjust the carb idle. There may be a similer adjustment at the twist grip but I don't remember one there.

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SOURCE: Where is the oil filter on a Yamaha XT 125?

if you take off the clutch cover and look to the bottom right of the engine you will see a black ruber strip. Pull this out and thats your oil filter. Unlike your usual filters you can just clean it and place back in.

SOURCE: after warm up bike will

make sure your turning the idle adjuster to the right

SOURCE: Yamaha DT 125 1986 - High Revs when idling

There have an air leak between the carb and the cylinder and/or the head and cylinder. Old hard / cracked rubber fittings and O rings are usually the problem. When extra air gets into the system it leans the fuel mix and the high idle is the result. It also means the engine runs hotter. Also, cracked or broken reeds can be a source.