Ok people have another problem with the landslide,,, After a couple of pulls to try and start it the pull cord wont recoil. I have to take the pull starter off or atleast loosen it to get it go back in. What is the deal ?????

if it's the same as a vx pull start, be careful. there is a mile long coil spring inside that will jump out and bite you like a cobra if you try to take it apart.

i had a problem with my tornado like that and it was a screw from the backplate loosened up and was catching on the pull start. there is only one way to find out. so take it off and cover your eyes. let us know what you find

man, can't stop laughing. You and I got the same experience I am sure.

That thing doesn't just bite at one place. thats a real cobra. well said

Cheers

Ali

Take the pull start out (Before that put on working goggles, and put on a long sleeve shirt) you don't want that cobra (the coil) to bite you when it comes out of that little place.

Carefully take the starter out and check. there might be something that is preventing the pull start to go back. check the coil (Fix) and put it back making sure all the screws are tight and everything inside the pull start sits right on its place.

there are videos you can watch that i put on youtube.

How to Fix the Pull Starter Part I
http://www.youtube.com/watch?v=kW2M3AoTVZo

How to Fix the Pull Starter Part II
http://www.youtube.com/watch?v=MH5Owx5YcJY


Cheers

Ali

i had the same problem a long time ago u need a new cobre(coil) or it's gonna keep happening to you there only 5 bucks and im sure your lhs has them

thanks for all the info,,,,,,found out that if i turn the clutch backwards it winds itself back in..it sucks to have to keep doing that but i will deal with it till my electric start

dont do that that will scratch ur piston up

just take out the 4 screws that hold the motor in take it out then take the 4 screws that hold the pull start in and pull the pullstart off. you got nothing to loose. just be careful

lol, how and why would turning it backwards scratch the piston?
the engine doesn't know which way the piston is being turned...it just knows that it's going up & down.
so what's the difference if you turn it forwards or backwards?

The fuel not only provides the combustion, but cools and most importantly lubericates the internal moving parts.

robriley i guess your right but i was told that you should never turn a nitro motor backwards

neyou86,
I would have to disagree. The movement of the piston without lubrication (sorry for the previous mispell) will allow metal on metal contact...which generates heat...and will cause premature wear.

it would be the same if u spun it the right way though

rjsdad is correct....by rotating the engine in either direction you have metal on metal with premature wear....this why it is important to properly tune the engine so that it starts quickly...also why it is important to get the engine above 200 deg ASAP..

also one may mention that by pulling the pull start in short qwik strokes and not rubbing the cord against the case will not only start the engine quickly...it helps prevent the coil failing by pulling on the cord to far....and also helps preserve the cord..... they are not lawn mowers

there is 2 methods I use....1 is to put my thumb on the head and the cord between 2 fingers....this allows u to pull in short, qwik and straight pulls...2 I put my chest above the rc engine...so this way I hit my chest before I pull the cord to far...both ways will start the engine right up if properly tuned

nicely put firebird

kru70, I had the same problem with mine, too much oil got on the "COBRA" and my guess is that it made the metal stick together enough that it wouldn't let it recoil back, weird how suction over powers tention, to a point, by you turning it backwards you break that suction and allow the coil to do its job( also for me, not so much for you though, when that happened I pulled to far on the cord making the COBRA tighten up all the way causing the metal to bond together via the oil. hope all that makes cents to ya.... an expeirament to my theory, take two peices of something true flat, glass, flat metal, whatever and coat it with oil, now stick it together and instead of sliding it from side to side to seperate, pull the two peices away from each other and see if you can do it? let  me know how it turns out

now on to the rest of the post,   I too would like to know the diff of spinning it foward as compaired to spinning it backwards, I'm 30 and have been tinkering with 4 strokes since my go cart at age 12, rebuilding a ford 2.3 at age 17 and 302 to replace the 2.3 at 22 and 5 vehicles later(still have four of them)yeah yeah ill move on...   I know two stroke, nitro or not, are the same principle and work just like four strokes but only two strokes(obviously)[X(] and less the moving valves, still you have a piston, conected to the crank via a conecting rod, which spins around making the rod and piston go up and down, that is all the cyl walls know about the piston is that it goes up and down.  the only diff I can tell is instead of air being pushed out the exhaust(spinning foward) that cycle is reversed and air is pushed out the carb(spinning backwards)

as for the lubrication bit, all that is true if you were "running" the engine backwards which is highly unlikly and most impossible to do, i don't know about most of you but I have hard enough time tunning it the way it is now, I doubt I would ever get it running if I mounted a carb to the exhaust side and muffler to the carb side, lol 

ok after all this, I just wanted to help make sure everybody was on the same page,

rjsdad, you are correct in what you say, however, kru70 is only talking about spinning the engine backwards only a few revolutions to make the pull start recoil the cord back in, even one pull like normal(without starting) turns the engine over at least 3 to 20 revolutions more then what he did by turning it backwards two or three turns,

neyou86, I also woulld have to say you are correct
no matter which way you turn the crank the piston goes up and down, not side to side, front to back, in or out, so Im with you, whats the differance 

firebird78, like the way you got it back on track, back to the problem at hand, the recoil issue, engenius,

in closing, im not trying to step on toes or call anybody out, merely trying to make sence of, so if I have, I apologize ahead of

[8D]peace out and happy trails[8D]</p>

Landslidebasher,
Good post, I have to admit that I was under the impression that he was spinning the engine backwards to recoil ALL of the pull string. Oops misunderstood the post.

these nitro engines are alot like 2 stroke dirt bike engines..especially the old air cooled ones...basically the same concept but a different way of going about it be it fuel and ignition...if you have ever been around dirt bikes you will notice that on like 250's and under they start much easier if you kick them fast at about half the travel of the kickstart...I say 250 and under because my friends 490 and my other friends 500r kick so hard that you pretty much gotta put all ur weight in it to just get them to kick (especially if your a smaller guy like myself)....also if you talk to anyone that knows anything about dirtbikes they will tell you not to run them wide open for a long period...I beleive this is also the case with these nitro engines...

I know this post is off topic...but the reason I made it is so people understand comparing these nitro engines to 4 cycle engine (car engines and such) is like comparing an apple to an orange....

landslide this post wasnt towards you bro....just wanted to point out the simularities and have seen many people compare these engines to 4 strokes...lol

ok...if you do spin the motor backwards you're saying metal to metal contact, no lube (from the fuel) will cause scratches.
well, if you put a few drops of after run oil in the cylinder...you have lube and you can spin it backwards.
bo, you can not compair a nitro engine to a car engine, or even a motorcycle 2 stroke for that matter.
motorcycle 2 strokes have either reed valves or they have rotary valves.
as far as i know, a nitro engine does not have any moving valves...maybe some slots for intake & exhaust, but no actual valves.

in contrary, you can run a diesel engine backwards...i have seen it many times.
you can also run a 4 stroke car type engine in reverse (all in-board car type boat motors run in reverse.)
you have to make changes to the ignition to make one run backwards, and you need a reverse flow waterpump, and a reverse rotating starter.

Nitro Motors will run backwards if started backwards. Nitro motors are only like 2 stroke motors on how they receive fuel through crankcase and use the fuel to lube the rotating mass inside the motor, And nitro's run on principle of a diesel motor, by using the heat and compression to ignite the fuel.

Oh no, Iwouldn't think that, and I wasn't trying to compare but merly point out that I ain't no newbie to the engine air pump world, down to it the only thing that can be compared to likeness is that any engine running with a piston is an air pump, the process to keep it pumping on its own is totally differant in each class(which reminds me, one thing I don't think I haven't seen in person is a 2 stroke diesel, hmmmm maybe Ill google, you tube, or something and atleast hear it online

and yeah I know its off topic, thats why Iposted, started out why his pull cord wouldn't get sucked back in to properly tunning a nitro while spinning/running backwards, lol heres an off the wall thought,anybody can have what everybody is doing and what the industry provides in bulk, somebody take a nitro and convert it to run backwards and add it to the spur gear so that way when channel3 tells the receiver to throttle on it will make the car go in reverse, i dunno, just thinking wildly wiching Ihad that shop with all them tools and equip just to see if Ican make it work, lol I need a sponser, any takers????

and I can't debate as to what an engine can do outside of what was built and designed to do, I just don't have the equip, $$$$, or time to try and figure out what every function the diff types of engines can do..Iwish Idid but just ain't got the resorces for that...soI agree with all of ya, especially you firebird,I ruined two good work boots and bruised severlly my right foot trying to kick over a husky 430 dirt bike I got, if only I couldn't of had a compression release like my suzuki 230 quad has or even an elec start, ha haalso maybethe higheryou get in the cc class that the stroke gets longer there for making the amount of air being compressed that much more greater there for making it harder to kick start, possibly, maybe part the reason why?? just a guess, I don't have experience with two strokes other then my sh 18 for that last several months, I do however understand how they operate and what it takes to keep them running,

and rob, just wanted to make sure I was clear on my last post about the valves in a two stroke meaning no valves, just wanted to make that clear,nitros from what Ihave seen have intake and exhast ports and if I gather right, a gas two stroke somewhat the same way but the intake port is through the piston and not through the sleeve like my nitro is, am Iright?

as far as "turning by hand just a few revolutions backwards" I don't think will do any harm to the piston or sleeve, after sitting for a long term with no ARO may un-noticably stratch ever so slightly due to the oil that was in there from the fuel has been pulled down by gravity to the crankcase... maybe but im sure doing that while running should be just fine, however, kru70 you stated that you are getting an elec start so you won't have to be spinning it by hand much longer, also Hope that this has helped with the issue you were having and any other Questions you may have had with the concept of the combustible air pump, which by the way, did ya'll know that they have engines that one side runs off gas and the other side can pump air, water, or any other substance you want to pump? watched that on junkyard wars, just have a seperate intake and exhaust for both the gas and other product and also make sure you are running the pistons that keep the centrifigul ballance ballanced

prostreet, i agree with you there cause, but wouldn't you have to swap the exhaust header for a carb and visa versa, cause when I got my nitro out and rotate it backwards the air wants to be pushed out the carb and not the exhaust? or am i just crazy? lol should you not say it


in closeing can anybody elaberate on the oil making the coil spring stick to itself making it not recoil back? just wanted to know if that theory was possible...

peace out...

No you wouldnt have to swap the carb with the header, because the exhaust port is higher up than the intake so the exhaust would open first then the intake

this might help but im not sure but in order for a snowmobile to go in reverse it just about dies and then the motor spins backwards. so im sure it could posibly be done with a nitro motor

oh yes....there are 2 stroke diesel engines.
they are made by detroit diesel, and alot of firetrucks use them.
they are v-6's, and they have both a turbo and a supercharger.