Full PCV cleanup? Easier out of the frame.
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I have similar problem on a Mercedes. I found this Dorman product available from O Reilly. It claims to have ceramic connector to avoid heat damage. I have not tried this product.
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I still suspect a vacuum leak. Spray all vacuum hoses with carb claener and listen for RPM increase. Try a smoke test. Your hoses look a little aged to me.
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Why is it our nature to run a battery to complete failure while we do preventive replacement for many other more expensive (less critical?) parts?
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I seem to have a lifetime cardboard creeper supply deal with Amazon. My wife may have arranged that.
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Somewhere I have a foam kneeling pad that helps for knees. I also used it for a roofing job as a butt pad to cushion my hip while sitting on the roof.
volvolugnut.

You youngun's and your blankets xD Jokes aside I worked out in the cold at the scrap yard for years. The wrenches would stick to your hand but you need to persevere, that engine won't get taken apart by itself. My toes would get numb, brutal. The only heat was a barrel with old headwrests we lit on...

scot850 wrote: ↑11 Dec 2023, 08:11 Spray around the hoses from the outside, and along the joins of the manifolds to the engine. If there is a vacuum leak it will suck the fluid in and the RPM will increase.

Neil.

Yes, that is what I meant.
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I wouldn't care if it had codes. It is a cool bike!
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My thought is the rubber bushings have a steel tube on the ID and the tube is rusted to the shaft. The stiff movement is allowed by twisting of the rubber.
Maybe more heat will break it loose.
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