High idle after riding for 45 minutes

[buster]

So I have been out riding a couple of times late this season and even though the bike idles great runs well it is hard to take it for long rides anywhere.

After the bike is warm it starts to hold idle at around 3k, even after I pulled over turned the idle down to 1k and rev'd it a couple of times I was back at 3k and holding, which makes shifting lots of fun.

Anyone know what could cause this? The bike is a 76 with mechanical carbs not vaccum

Thanks for the help!

[tom203]

You certainly have quite the assortment of bikes- and you've been around here long enough to know that your most likely problem with this bike is an intake air leak, assuming your throttle cable is not hanging up. Yes, coping with a high idle can be tiring- my son's ninja 250 drives me crazy.

[buster]

Air intake leak, you know sometimes you cant see the forest throught the trees. Something I didn't consider. I will look into that thanks!

And yes I tend to go through bikes rather often. I still have the GS1100 and plan on keeping it a while after I finish putting it back together. This is a CB750 that I happened across, cafe thing, kinda fun to ride but not for keeps.

Thanks again I will look into it.