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can i blow it ?


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I don't know that all sounds crazy to me cause i live in texas and the temps don't change that much. Ofcourse heat expands no matter what but you would have to have a big change in temp to have to rejet that's just me.

 

It all depends where you live.For example here we have some pretty good temp swings,Sunday it was 77 out and today it's going to be 49.In the summer we are usually around 100 or so and in winter we get to 22-35 most of the time.

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i didnt ever know that. im from boston massachusetts so the summers are hot and the winters are very cold. my bike was running really good this summer after i rejetted the 2 into 1 carb. now my question is should i bring the jetting # down or up for the coming winter?

thanks

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i didnt ever know that. im from boston massachusetts so the summers are hot and the winters are very cold. my bike was running really good this summer after i rejetted the 2 into 1 carb. now my question is should i bring the jetting # down or up for the coming winter?

thanks

 

You want to bring the number up.I'm asuming you're running a mikuni carb sense your sig says 310 main jet?The bigger the # on the jet the bigger the I.D of the jet.

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Another option is adding power jets. Not too bad if you are already making mods or changing carbs.

You can set your carbs in summer with them mostly closed and when it cools off you just open them up

till your plugs read right. (Also, Dial-a jet kits would work.)

Otherwise you will have to change the mains as mentioned above.

 

Either way, when it cools off and you rejet you need to do a plug chop to check your jetting.

Do a forum search on PLUG CHOP. That will explain how to properly jet the carbs.

Edited by brian
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Just make sure you dont run an oil that has caster oil in it. It suposedly seperates out and at colder temps (lower 30's). How bad it seperates out I dont know. Take some of your premix and put it in a pop bottle and put it in the freezer. See if the caster oil chunks up or still stays a liquid and keeps blended if your shake it.

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