Bog & Backfire?

[WayBackWhen]

So I picked up a Shee yesterday, first two stroke, must say, what an incredible bike! Today I was riding it around, between 15-20 minutes of riding, it'll get kinda boggy and Ill lose my powerband and it would backfire a little bit. It didnt sound like a .50cal. going off next to my ear, but more like one of those things you throw on the ground that snap. I would turn it off, let it sit for a little, and it would then run just fine. I dont know itf its the carb or its overheating, or something......

Edited November 10, 2009 by WayBackWhen

[White97Banshee]

What mods are all done to it? I would start by pulling the carbs off and cleaning them, and pulling the reeds off and making sure it didn't suck a petal into the motor, and if neither of those fix the issue, do a leakdown test. 

[WayBackWhen]

As far as I know, its completely stock, I traded for it, it is used and he didnt say anything about aftermarket...anything. I was wondering how much it would cost if i took it to a respected dealer to have them look it over and do what needs to be done....any ideas? Again, its, as far as I know, bone stock.

[White97Banshee]

I would never take my 'Shee to a stealership unless I was very desperate. But like I said, just pull the carbs and clean em,  pull the reeds and check em, and if neither of those work do a leakdown test. There's a thread on here somewhere about how to make your own leakdown tester, it's really quite easy. It will tell you if you have an air leak. Try those and let me know how it goes.

[WayBackWhen]

lol Well, like I said, this is my first two stroke, ive never had to deal with any form of carburation....so it may take me awhile haha, but Ill do my best.

[White97Banshee]

 Oh lol sorry I missed that part. Well to clean the carbs you take the clamps off of both the airbox and intake boots and remove the carb, then on the bottom of it there is 4 screws, 1 on each corner and they hold on what's called the float bowl. Pull that off and you should see a hex style screw thing. That's your main jet. Take that off with a socket or something and remove the piece of plastic under it. The piece of plastic goes into a hole with the pilot jet inside it. Put a small flathead screwdriver in that hole and unscrew the pilot and remove that as well. Spray carb cleaner in all the passages and through the jets. I personally like the pipe cleaners for like arts & crafts and stuff, get some that are small enough to fit through at least the main jet and push it through. This will remove all of the dirt and debris clogging the jets. After it's all cleaned out put it back together and repeat the process on the other one. Just keep in mind that when you put the carbs back together don't forget to connect the choke tube between the 2 carbs. It's the rubber hose that looks like a fuel line running between the 2 carbs and plugs into where the choke would go on the right side one.

 

 

 

 

Sorry for the long ass description but I tried to explain everything in full detail for ya.

 

 

[WayBackWhen]

No, thank you for that long ass description! Carburation to me is like calculus.....I have no idea, why not just use a fuel injection system? I dont care! My Banshee is bas ass, even bone stock lol

[White97Banshee]

Haha hell yeah. But after you get used to it and have tinkered with it a little while you'll find out how much simpler a carburetor is than an EFI system. There are great articles on this site such as the Jetting FAQ and how a carb works and such. You should read through the both of em and eventually you'll get to be a pro at working on your own bike. And yes, a Banshee is always gonna be badass, even bone stock. Mine's only got pipes, reeds, and k&n's and it walks all over the big bore 4 pokes with pipes and cams.