any ideas? got spark, go fuel, no start

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Glad you got it running and I agree that pipe is badass, have raced 2 stroke motocross and it brings back memories. anyway it is same one as I have on mine it is loud but powerful.
 
25.1 in mine and mine don't hardly smoke at all. 25.1 is the standard for these motors all way cross the board. 50.1 is for weedeaters like the premix cans of gas/oil i buy for my weedeater. and its a McCullough weedeater.

you starve these truck engines for too long of oil and they prolly gonna seize up, eventually. have heard of a few who tried 50.1 and all the horror stories that the engines locked up, blew apart internally, etc.... if anything i might go with 30.1 but never 50.1
 
Largescalebuilder said:
25:1 is fouling the plug out. I haven't had any problems with 50:1. It starts much easier now and that was the problem. Too much oil can make the engine not start. You need spark, fuel and air to fire it up. All my G2d engines use 50:1 so do my new engines. You can tell when a engine is getting too much oil by what is comming out the exhaust. I always had a lake and mess to clean up and lots of smoke. Now with the new 50:1 I have less oil mess and less smoke if any.
Click to expand...

My weed eater is 32:1. It's a 25cc with a walbro carb. The majority of us here are running 25:1 - 30:1 without an oily mess and without excessive smoke. Why is yours so different? Maybe look at the fuel or oil you're using...

If 50:1 is working for you, great. It's not recommended, and not suggested by anyone (but you). What I wouldn't do is go around telling everyone it's perfectly fine. It's not. It works for you for now, but the life of your engine will be shorter, especially when the weather warms up. This isn't a motorcycle, or any other 2 stroke that can get away with 50:1.

Reading through some of your recent posts, you seem compelled to convince everyone that 50:1 is the best way to do it. It really isn't, and you're going to get opposition from the whole RC 2 stroke community, and you're going to steer the new guys in a bad direction.

I'll anxiously wait for the first new guy to come back in here and ask why his piston is scuffed and his ring is toast after running what you suggested.
 
My weedeater engines all run on 50:1 oil mix.
My fuel is 95 octane unleaded and Im using amsoil.
My wcms all use zenoah engine and in the manual it states 50:1 oil mix. on The engine label does say 25:1 but the manual states different due to plug fouling problems.
Quality oil does make the difference because your right about these engines running tight. That requires less oil.:w00t:
More oil mix is a poor quality engine.
Im always looking for a good wager on my opinion. But nobody seems to want to pay up when they loose!
Use the right products the first time or pay the price later. Ive been running these engines for years like this without problems.
when I see that an engine dosen't want to run I look first at the oil mix then to the carb. 25:1 is nothing but problems.
 

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Largescalebuilder said:
My weedeater engines all run on 50:1 oil mix.
My fuel is 95 octane unleaded and Im using amsoil.
My wcms all use zenoah engine and in the manual it states 50:1 oil mix. on The engine label does say 25:1 but the manual states different due to plug fouling problems.
Quality oil does make the difference because your right about these engines running tight. That requires less oil.:w00t:
More oil mix is a poor quality engine.
Im always looking for a good wager on my opinion. But nobody seems to want to pay up when they loose!
Use the right products the first time or pay the price later. Ive been running these engines for years like this without problems.
when I see that an engine dosen't want to run I look first at the oil mix then to the carb. 25:1 is nothing but problems.
Click to expand...

The engine in that manual runs at half the hp and half the RPM as the RC engines we're discussing. So I'll say it here again, if you're having fouling problems at 25:1, you've got another underlying issue you're covering up for. Also like I said, if it's working for you, great. But don't go around suggesting it to everyone like that's how it's supposed to be. Because it's not.
 
cobras dead on, weedeater engines do not run at the rpm's these truck engines do. if they did, i would take my 32cc McCullough weedeater and put the engine on my truck which has a 29cc. but they don't, these rc engines are designed to run alot faster rpm's than a weedeater does, and need more oil in gas to keep lubed up well.
 
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