hey ok here is the problem i just turned the airfuel mixture screw out to 3 turns and it still back fires but not half as bad as it did! ( i mean it is beater ). what can i do?

 

anyone know the answer to the question?

 

you can go as far as 4 turns out before you need to up your pilot 1 size.

Go to 3 1/2 turns, if still thier go to 4 turns.

stock pilot is a 38, you will need a 40.

This is your pipe doing it, nothing wrong with the pipe just flows good.

Have you adjusted your valves for your first service yet, if not do so now!!!

 

Gaff can you help me i got the lakota back up and running but it's smoking really bad it's blue smoke. It don't do it when it's idiling. But once you get about 1/2 it starts and when i let off of it it still does it. I've talked to my dad and he said near the end of the summer i can get a new quad.
My next bike i will not rag it out like i have this one.

 

what do you mean to adjust my valves? i had it in their after i had it for about 2-3months for survies because he told me to but i have not had it surveised yet with the mods on it! i will turn it out 1/2 more and try it! thanxs!

 

bigbad400,
This is not good news, but you made it longer than I thought you would.
The rings have failed, if you get a puff of blue smoke when you first start it, that is valve seals. What you are describing sounds like rings, are you sure the air filter is clean and free of oil.
It is possible to have a plugged air filter and you will pull oil out of the crank case, but other problems go with that.
What does your plug look like, oil soaked or just sooty. How much oil do you have to add.

I felt when you road the quad when you didn't have the split rings on the exhaust, so it wouldn't tighten to the head that it was going to make the rings fale pretty quick
Sorry but thats what did it[img]i/expressions/face-icon-small-frown.gif[/img]

Just re-ring it, you can use the stock piston (if not chewed up) with .020" over rings. Have a machinest hone it to the stock piston and file the end of the rings down to fit correctly. Or go to wiesco and get a piston kit for $90, you will need a moose top end gasket set from dennis kirk $25

Or you can get a High comp piston from mickey for $165

Either way you go, your dad should be able to do this, it can be done with the motor in the frame, so not that hard.
I know your asking me, but I'm sure your dad knows all this already.

bluekawirider,
Just mentioned the valves because it's the most over looked maintenance.
Yes go to 3 1/2 turns and if that doesn't work go to 4.
It will be better, a de-accelleration backfire is normal when adding a header, but is correctable. So don't get bummed, your getting there.

 

k i just talked to my dad and he said that they did reset the valves when we took it in ther! i don't have school tomarow so i will reset it and play with it! i have a feeling that it mite be jetted right becaues now that i adjusted the airfuel mixture screw i can put it in 1st and just hit the gas and like you said it comes up about 6in but if i pull back on the bars it mite flip on me *_^! thanxs for all your help, i think i mite hold of on the piston for a while because for $300 i can get full skid plates, tires, dg bumber! but next time i get $300 i will get the piston and gaskets and polish! is there eny way to get more acceleration on top speed by just playing with it?

 

Well I know it's taking a while, and can be frustrating, but already you are seeing how important jetting is. Not to mention how much your learning rite away.

After you get threw this go to the main jet. The dynojet instructions will tell you with your mods to install a #DJ138, this is a little fat.

If the lakota is fat about half throttle the accelleration drops way down. This will be well illistrated if you do a top end run with a GPS in your hand. The quad will go very quickly to about 40+ MPH and take what seems to be all day to reach around 58MPH.

Most found that the #134 jet was the best but I had to go down to a #130.
I also live in a very hot and humid inviroment.

Do some top end runs for about 5 minutes in fith gear, stop the engine with the throtle still pinned, pull the plug and keep jetting down untill you get a whitish lean condition on your plug and then jet back up one size. Then you will be there.

Remember the difference between the 138 and 134 is 4 jet sizes, wich can make a huge difference during mid to top range accelleration.

When you get it there you will feel it being quite snappy in every power range. Even in the woods, in 3rd gear with just the slightest assist of a route or rock you will see you can carry 3rd gear wheelies for some distance.

If I could suggest, go to prm-atv.com for all your skids, bumper, and grab bar needs, they have the best quality products by far.

 

Gaff thannks for the info. I'm probley just going to put the stock pipe back on and take it back to the dealer I still have warranty but the will try to give a run around and say that the warranty won't cover it. And one other thing my bike keeps eating the front inner hub bearings. I have to put one 1 bearing in them every month at least one side. And i really don't ride in the mud that often. When i went and got the last bearing the guy said the main thing that makes bearings go bad are pressure washer. And i don't ever pressure wash it. It uses seald bearings in the front do you have to pop the seal off and put grease in them i figured that they where pre packed. I will probley have the pipe for sale in the classifieds pretty soon.

 

bluekawirider,
Hows the jetting project coming?