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...