flooded.................take rhe plug out and dry it out and then try again

Flooded or leaned the low end too much my 0.02. I'm kind of new to it myself. I would turn both needles out 1.5 turns from bottom and try again.

I have pulled the pug out and cleaned it up. It makes no diffrence. I have not altered the high or low needel yet it is left how it was from new and it run ok at that for two tanks just a little rich.

I will mess again tonight. I have never had an engine do anything like this. If it has fuel and a spark it should run, but it does not even fire

I had this problem with my DA twice and each time it was the plug cap from the module,

I would ground the plug to the engine turned the hub and got spark??? and I new it had gas??? but when the plug was back in the engine had no start no sputter no nothing,

One orther thing you may try, switch to a 6V battery and make sure the battery and module connections are good,

I am building a Lavochkin LA-7 from David Andersen plans and am looking for a gasser. All up weight is estimated 31 lbs.
I only want to fly scale so how do you think a DL50 would go ?? All answers greatly appreciated.
Pedro

Get a new spark plug, I have seen some of the China plugs fail after one flight and engine would not start, New plug and fired right up.

Milton

Just took delivery on a new Vess 22A for the DL. That prop is a thing a beauty. Almost seems a shame to drill holes in it. Hope it helps bring up the revs to what others are getting. I can't seem to get past 6400, but I am still on Lawnboy at 32:1 and 22x8 Master Airscrew. Perfomance and reliabilty though have been great. I'll post some rpm number after this weekend as I plan to switch to sythetic oil.

Hope you get you engine sorted out, Paul.

DL50 V3 is on the way four reed valves, machined finish! NGK CM6 Spark plug.

You sure thats a DL50 and not one of the many other engine releases out of China today? Head isn't brand stamped like to other one.

Cant help being a little skeptical on this......The DL-50 is selling like cold beer at a firemans convention.... If it aint broke, why would they go to the expense of fixin' it......

Good rumor to start on a DL 50 thread.
Please produce your source of the pics, and the information about the latest "version" that you mention.

The current version is selling like nutso everyplace that handles it cannot understand why DL would release a new version with a redesigned crankcase with more expensive machined parts.

Reveal your sources and validate your statements, would you??
Thanks.

I checked with MAS and they don't recommend drilling any of their props. Have many of you been drilling MAS props??

Hi, got the DL running sweet. I am abit enbarrassed as to why i could not get it to run.[sm=50_50.gif] I aways start my planes from the front. As i was on my home at home i started the engine from the back. Yes you guessed it i was swinging the prop the wrong way. Went back to it tonight and it started second flick. Sorry to waste your time. But maybe this may help others.

Paul

This as an MA wooden propnot a nylon. They don't make plastic props in this size range, and I agree, I would not drillthere wouldn't be any place to drill one anyway. The woodies though are like any other wooden prop and there is no way to use them on the DL without drilling the four bolt holes.

Paulglad to hear you got your "problem" sorted out. I'm not sure I would have admitted to that.... Then again, I've never taken off with reversed ailerons, or with the wrong plane selected, or....

MAS does not recommend drilling any, even the wood ones, according to the response they sent me.

I told them it was the same as a DA-50.

Right after making a prat of myself thought i would try and ask another question. Got the DL to tickover at 1,900 rpm, and rev upto 7,000rpm. The only thing is that at throttle shut on the tx i get 1,900 rpm, at 1/4 throttle i get 6,800 rpm, at full throttle i get 7,000rpm. What do you lads do to make the throttle curve more useable?

Fully aluminium crankcase?? Man, you got be kidding me...
This could cost alot. Also there was no DL seal on that engine.

Waynehere is a pic of my installation. No other way to mount it. If MA did not want holes drilled around the center shaft, I am sure they would put all kinds of warnings on their packaging. As you can see, this prop is similar to every other wood prop. It may not be a very GOOD prop, but what would it be used for if you couldn't drill holes for prop bolts. Sorry, don't mean to be bullheaded about this, but I think MA must be confused. I drilled it and no problemsso have a couple of other guys. One guy at my field had the same prop with, I think, 6 holes and has it mounted on a 2 cylinder 80cc of some manufacture.

Regards.

Greg

This does not look like the DL.

Could you please give more info and post your sources?

Its very aggravating when someone posts something like this and then does not back it up.

My main problem with this is the fact that the engine has a 6 bolt prop mount instead of a 4 bolt pattern. One of the main reasons that the DL's have been so popular is that they have the same/similar mounting pattern as the DA50R for most things.



Cheers
Pupmeister

Looks like an MT-57 crankcase with a "dl-50-style" jug.

...or a very obvious copy of that other rear-induction, reed-valve, cantilevered-crankshaft, industry-leading, American-made 50cc engine.

Well, whatever it is, I agree with pupmiester-they screwed the pooch with the 6 bolt hub.

Actually that 6-bolt hub might line up with the ZDZ 50.

This is pretty typical on a gas engine, the throttle butterfly movement is not linear. I have a throttle curve (JR) on mine that is something like, 0 10 26 30 36 46 100. One way of doing it is to tach your rpm at idle and then at full throttle and adjust your curve to give 50% at half throttle etc. Personally I adjust the curve by going to full throttle and then bringing the stick back a click and adjust to give a drop in RPM and carrying on reducing until idle. I then adjust it to suit my flying style.