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rejetting in the cold weather?


shees ripin

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im on the verge of buyin a banshee and i live in maine so it gets pretty cold in the winter. I was planning on riding this winter with some studed tires and maybe even skies on front. but anyway i was wondering if it was a must to rejet the carb? or can u just run some plugs that run hotter? I dont dare to rejet it myself so im trying to avoid the labor fees at the near by shop each spring and fall. Any feedback would be much appreciated.. thanks

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im on the verge of buyin a banshee and i live in maine so it gets pretty cold in the winter. I was planning on riding this winter with some studed tires and maybe even skies on front. but anyway i was wondering if it was a must to rejet the carb? or can u just run some plugs that run hotter? I dont dare to rejet it myself so im trying to avoid the labor fees at the near by shop each spring and fall. Any feedback would be much appreciated.. thanks

 

plugs won't change your jetting AT ALL. So, I suggest, year round, to run the BR8's. Rejetting is simple and something that would be good to learn. In the summer, when the temps climb, your motor will richen. In the winter, as the temps drop, your motor will lean. Lean is BAD, rich doesn't hurt anything may just foul a plug.

 

So..... in the winter, your motor will need more fuel than in the summer. In Texas, we get some "cooler" temps in the winter but just a handful of days below freezing and we don't ride on these days anyway; so the need for us to rejet doesn't exist. Where, I grew up, mountains of Colorado, there was a need. Near 90's in the summer and mid 30's as a high in the winter. We'd end up having to rejet a couple main sizes and occasionally change a pilot jet.

 

What I suggest is jet for the winter, since we're coming into winter and run it that way. As spring and summer comes, you may notice your motor to start running fat, maybe some cutting out or spitting/sputtering. If so, then that means it's richening up, due to the warmer temps and you may need to lean the carb a tad. If that's the case, then let us know next spring.... :)

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If you were going to run a bone stock banshee at say 50F degrees then I would say you could get away with it, but if you are talking below 30 deg F or near 0 deg F then you would need to go up on the main at least 2 sizes. Once you jet it once you can do it again and you get much faster the more you do it. If you are not mechanically inclined, have someone show you how do remove the carbs and change the jet the first time, it helps. Plug heat range wont effect how a banshee runs due to cold air, you go WOT and it will get up to proper operating temp no problem.

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  • 4 weeks later...

curious for me... i ran the shee all summer and it was fine, now that its getting colder (snowed last night) and the dunes are still open, should i jump a size or just adjust the screw... its in the low 40s in the day... so im thinkin i should change them but wanna make sure.

 

where can i get new jets for cheap (VERY tight college student budget)

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curious for me... i ran the shee all summer and it was fine, now that its getting colder (snowed last night) and the dunes are still open, should i jump a size or just adjust the screw... its in the low 40s in the day... so im thinkin i should change them but wanna make sure.

 

where can i get new jets for cheap (VERY tight college student budget)

 

 

 

i live in lansing and my shee has 280's in it(stock carbs) ....i run it that way summer and winter and when we winter ride its usually at night in leota(harrison)....it gets a lil rich in the summer but it still revs clean......i like a lil rich anyways like the other guys said lean is BAD.

 

 

and you can get stock carb jets at any yamaha shop and there only a couple bucks a piece

 

 

my shee is a '01 and i just pulled it down for the frist time ever...... :beer: :beer:

Edited by BansheeDan
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jetting is simple man u dont even have to take the carbs all the way out...just figure out what jet u need unscrew the carb caps pull everything out loosen the clamps on the carb turn it sideways take the bottom part off (the bowl) and the main jet is right there u cant miss it swap out jets put carbs back together...all u need is a 6mm nutdriver and a phillips screwdriver its simeple i promise

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curious for me... i ran the shee all summer and it was fine, now that its getting colder (snowed last night) and the dunes are still open, should i jump a size or just adjust the screw... its in the low 40s in the day... so im thinkin i should change them but wanna make sure.

 

where can i get new jets for cheap (VERY tight college student budget)

 

Turning the air screw ONLY effects off idle to 1/8 throttle or so. It will do nothing for more than 1/8 throttle, which...I'd go out on a limb and say is where you're gonna spend most of the time at Silver Lake....

 

My bike was jetted perfectly for Standish area I was riding in, but was just a HAIR lean at Silver Lake...

 

If your bike was properly jetted before when it was warm out, I'd say jump up a size...MAYBE two sizes on the main.

 

Main jets are only 3 or 4 bucks....

 

I know you're a college student, and money is tight...but, if 10 to 20 bucks is gonna kill you, you might have gotten into the wrong sport...and possibly the wrong quad for that matter.

 

20 bucks in jets is much cheaper and easier than a fresh top end because it leaned out...:)

 

We're all coming to the dunes last weekend of October, my bike pic is in my sig. If you can make it out, look for us, probably be on the drag strip, of course, most of the time....

 

I'm Dave....

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Turning the air screw ONLY effects off idle to 1/8 throttle or so. It will do nothing for more than 1/8 throttle, which...I'd go out on a limb and say is where you're gonna spend most of the time at Silver Lake....

 

My bike was jetted perfectly for Standish area I was riding in, but was just a HAIR lean at Silver Lake...

 

If your bike was properly jetted before when it was warm out, I'd say jump up a size...MAYBE two sizes on the main.

 

Main jets are only 3 or 4 bucks....

 

I know you're a college student, and money is tight...but, if 10 to 20 bucks is gonna kill you, you might have gotten into the wrong sport...and possibly the wrong quad for that matter.

 

20 bucks in jets is much cheaper and easier than a fresh top end because it leaned out...:)

 

We're all coming to the dunes last weekend of October, my bike pic is in my sig. If you can make it out, look for us, probably be on the drag strip, of course, most of the time....

 

I'm Dave....

If your buying your bike new it should come with a set of jets. 200 will be in it and I think they included jets up to 240 or so. So the cost will be free to make a change.

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If your buying your bike new it should come with a set of jets. 200 will be in it and I think they included jets up to 240 or so. So the cost will be free to make a change.

 

 

Not sure about where you're from...but, of all the new bikes I've had, dirt bikes, quads, etc., I've NEVER had jets included with the purchase....other than what was already in the carbs...

 

However...not saying other dealers in other areas don't practice that....

 

That is a good idea. Since they're cheap....and they're the dealer so they should have 'em, I'd tell 'em to give you a set of mains from 210 to 250....

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