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| | | Forum Newbie
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Last Login: 4/28/2007 6:00:34 PM
Posts: 2, Visits: 3 |
| hi there ,i'm glad i found this website,i'm looking every possible place and forum available to get the most information i need to get answer to my questions,so if you have any sugestion or answer,is wellcome,trust me.
well here we go: i bought on ebay around 2 weeks a go a suzuki lt 80 (2002), two stroke engine, the deal was very fast because the seller was living to a trip the same day i pick up the atv,so i only could get bassic info about the atv.
the person told me that he had moved not too long a go from other state so the actual carb adjustment it was set for 6000 ft altitude,and now it will be reset for "sea level"(miami,fl); is that something i can do my self? how?
what happen is starts inmediatley,and is a bullet, also it has a racing package(wells extended in the front so it wont tip over,it has a twist throtle; so after iits started with the choke up, if you push the choke down it will turn off,after taking a ride wen you stop if you dont lift the choke it will turn off.
i got the manual on ebay,and after reading about it and serching the diferent parts and tanks to check fluids on the atv i found out that in this one ,they had removed the oil tank,and the oil injectors valve it has been removed too ,it has a cover plate instead, so you need a direct mix thru the gas tank. at this point it has inside the tank the gas that came with,; i will like to drain everyrthing inside to start brand new,with a fresh mix since i dint know what kind of oil it was used for the mix,and i dont know the amounts to be mixed(oil and gas) . how can you drain the actual mix in there?
after draining what is in the gas tank,is any amount of that mix
inside the engine to be drained?
how much oil per gallon?
what type of oil to be used?
what type of gas?
is anything inside the engine to be drained besides the fluid in the gas tank?
what type of oil to be used for the transmition?
since the oil tank was removed,and so the oil injectors valve; how can i determine if this atv was ever out of oil?what will be the symptoms?
can you check the compression yopur self?
can you ckeck the if clutctches are working properlly your self?
how can you adjust the rear brakes?,in this atv you have to push down a lot the paddle to get to stop.
at this point the machine runs fast,it turnes on the first time is started,and like i said it turnes off only if ween you stop the choke is not lift.
i really appereciatte any suggestions given, i know they are many questions,but i'm sure that outhere sonmeone has answers and is willing to share suggestions.
God bless you all my fellow atv lovers.
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| | | Forum Newbie
Group: Forum Members
Last Login: 5/12/2007 12:29:36 AM
Posts: 3, Visits: 3 |
| I am new to this site also and am a little dissapointed in the lack of technical information out there.
I am not sure if anyone has replied to your posting yet.
You shouldn't have to drain the gas. I don't know what the mixture should be for this quad. I just got one and it is a total basket case, almost everything is wrecked. The best thing to do is to call the previous owner about the mixture. If they made mods to the engine it is probably running a different oil/gas mixture than stock.
Should be no need to drain the gas tank.
There is no need to drain anything from the engine. A 2-stroke does not have a crankcase that's full of oil like a four stroke and so there is no oil to drain. THere will be residual oil in the crankcase but there is no need o clean it out. You would have to completely dissasemble the engine to do so. You would probably be doing more harm than good anyways, because then your engine would be running dry for the first few minutes until the oil film builds up in the crankcase again.
When I talk about mixture, in the next paragraph, I am talking about air/fuel mixture, not oil/fuel mixture.
Your machine will be running lean at a lower altitude. The air is denser and therefore requires more fuel to run properly. 2-strokes produce more power when jetted lean, but have a nasty tendancy to burn through pistons and rings because the fuel cools the piston surface and a lack of fuel=lack of cooling.
I am going to assume that it still has the stock carbeurator. You need to make two or maybe three adjustments. The idle jet or sometimes called the pilot jet is too small. This jet must be replaced with a larger one. You have to remove the carbeurator, remove the float bowl and unscrew the pilot jet. It should be stamped with a number. Get one size larger from your local Suzuki dealer and try it out. If it still won't idle without the choke go larger. The stock carb has no fine adjustment for the idle mixture. It does however have an idle speed adjustment. It is a brass screw on the side of the carb, turn it clockwise to increase the idle speed. The main jet size will also need to be increased. It is right beside the pilot jet. It is larger than the pilot jet and also easier to get at. If you don't know your way around a carbeurator it may be best to leave this to the professionals. You may also have to adjust the jet needle. THere is a threaded cap on top of the carb where the cable goes in. Unthread it and the carb slide and needle should slide right out the top. compress the spring, work the cable out of the slide and pull the needle out of the slide. THere should be a clip on the needle and four slots on the needle. You want to raise the needle up to allow more fuel, so the clip should go down a notch. Try it and if it still seems lean, go another notch.
The pilot jet adjusts mixture at idle,
The main jet adjsuts mixture at WOT
The needle position adjusts mixture in midrange.
Hope this helps.
If it ever ran out of oil it would have poor compression and probably would not run well at all, also the bottom end bearings and wrist pin bearing could be shot. Usually the piston and rings go first.
You need a compression guage to check compression. If you are only going to do it once probably not worth your while to buy one.
If your engine has good power and runs well, the compression is likely good.
As far as the clutches go, if you are satisfied with the engagement RPM, acceleration and top speed best not to mess with it.
I am not familiar enough yet with the machine to know exactly how to adjust the rear brake but it most definitely can be adjsuted.
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