Problem with after market driven pulley on trail master

[panchothedog]

3/16 " works for everything I have. Up to, and including a built 301. I know 1/4" supplies more fuel, but most of the tank and carb fittings on these little engines are 3/16. Not had anything starved for gas.

 

[Whitetrashrocker]

3/16 " works for everything I have. Up to, and including a built 301. I know 1/4" supplies more fuel, but most of the tank and carb fittings on these little engines are 3/16. Not had anything starved for gas.

What did you do to that 301?
Is there a thread here about it as to not spam this one.

 

[Ryanhodge2715]

Lol picking up more carb cleaner now I check back in later tonight with how it goes. An I belive I have 1/4 no less than 3/16. I didn't use the fuel filter bc I still have my gas tank mounted to the engine. Last cart I added one an there really no room for it to fit without making it have exsase to where my gas line went above the gas port on bottom of the tank wich would make it kill out at 1/4 of a tank left. But it does have a little filter inside the gas tank where the line hooks too. How do yall suggest to clean the tank? I poured splash of gas an shook it hard but that's it. Lol I like you guys this little forum has become part of my day yall my boys blue! An **** let's talk whatever man I'm open ears let's hear about the Ole 301

 

[Whitetrashrocker]

You can read all about it here.

A tale of two Dingo's

It starts with having 5 acres around the house and a lot of dirt. Quads and dirtbikes are fun but I just wanted a yard bomber. And besides I have big toys to go play with. So I found this kart of FB locally. I looked it over and told him it needed a ton of work. Carb was open, bowl off and...

www.diygokarts.com

 

[panchothedog]

No thread. I'll keep it short. Gov. removed, pipe and air filter, #41 main and drilled pilot jet, # 50 lb springs, ARC rod & flywheel, 6 degree key, twister 250 cam, .050" cut on head, ported int. & exh. by a professional head shop. Runs well. Very pleased.

 

[Ryanhodge2715]

Currently giving the carb a jail house special. With it running good on choke I know that seems to mean too much air recon going up in the jet size should compensate adding more fuel?

 

[Whitetrashrocker]

Take out the jets and there's a needle valve that can get gummed up too.
Theres tiny passages that your have to clean too. Look in the throat of the carb. On the bottom, you should see them.

Don't just go with a bigger jet. That would be a new, clean jet, with a bigger hole than you need. Clean yours up first. It ran once with it that way. Don't blindly make changes.

 

[Ryanhodge2715]

I did any hole there was to clean I poked with my file set an spray it relentlessly.... still the same thing. I also noticed it's got a little tap to it like my valve lash to big. I set intake to .05 an exhaust to .007 what do yall recommend? .003 on both? I see that alot as well.

 

[Ryanhodge2715]

But one thing I didn't consider is the only other outside variable that I didn't mention but didn't say I used. When I say a little splash I did a LITTLE splash of octane booster to a 2 1/2 gallon tank. Don't think that could be a issue with this little motor do you???? Man ima feal like a dumbass if that's all it is.. gonna try to drain tank an put fresh gas an see what it does..

 

[Ryanhodge2715]

Just an advanced I'm sorry to everyone I got a good feeling that's probably my issue after looking some stuff up... yikes I'd hate it bc all the time spent explaining every function of the motor inside out on yalls behalf (although I needed it an am thankful) but would be damn happy if that's all it is gotta grill some chops an eat ima test that tonight!

 

[Whitetrashrocker]

Ill come test those chops you speak of.

 

[Ryanhodge2715]

Alright so with my limited time of running it I didn't think to drain the bowl first I did about 3 laps up an down I'd Def say it was a little better but still shuddered. I'm have to wait till tomorrow to mess with it any more. An I noticed it's not when I give over full throttle it does it like I thought. It's actually just when it gets up to speed. I can floor it out the hole an it kicks dirt hole 9 yards. Just when I get about 20 mph it does it. But gonna drain the bowl an try again tomorrow

 

[Ryanhodge2715]

Ill come test those chops you speak of.

They wass good to man Ole lemon pepper seasoned chops by far my favorite flavor

 

[panchothedog]

A brand new carburetor is pretty cheap. I admire your tenacity, but at some point how much of your time are you going to invest to save 15 or 20 dollars. With the open style air filter and a straight pipe, A new stock style carb with a .036" jet is a garunteed winner. Not a # 36 jet, A jet with a hole in it that is .036". Go kart shops like Go Power Sports, and O M B Warehouse sell them listed as such, as well as the stock style carb. Get away from Amazon and get real parts that work.

 

[Ryanhodge2715]

True ill probably be looking that route if it don't work draining the bowl an starting fresh I'm really thinking/hoping that's was the problem though. The fact that it was better then befor leaves me hopeful about that. There was a moment where it didn't do it an started to pick up speed it was short lived. But my guess it was the fresh gas working it's way in. Besides new emulsion tube an jet. Seals are good it's only few months old. Figured new jets an fresh seals these baby's are brand new again. Right?

 

[bob58o]

If the carb is clean…

And you sprayed starting fluid to determine there is no intake gasket leak…

And you made sure the gas tank is venting…

Then I think the larger jets would be worth a try.

you said you have 85, 95, and 100?
Try the next larger one and see if it improves. If it does, try the next larger.

 

[bob58o]

With it running good on choke I know that seems to mean too much air recon going up in the jet size should compensate adding more fuel?

Sort of. I wouldn’t say it’s getting too much air - as not enough fuel. The more oxygen an engine gets the better as long as it’s controlled. Adding fuel to match the amount of air is the easier part of a gasoline engine.

But yes. If there is too much air, it needs more fuel.

If there’s not enough air, it needs less fuel.

The carb’s job is to keep the amount of air and the amount of fuel in the correct ratio.

 

[Ryanhodge2715]

If the carb is clean…

And you sprayed starting fluid to determine there is no intake gasket leak…

And you made sure the gas tank is venting…

Then I think the larger jets would be worth a try.

you said you have 85, 95, and 100?
Try the next larger one and see if it improves. If it does, try the next larger.

I thought forsure oh **** Bob is gonna be pissed when he hears of the octane booster. Lol mannn there's good chance I just added to much an this is my issue...... bc it ran best with this 85 originally an I totally forgot I added a splash with what I thought was little amount but possibly was over kill considering the little bottle treats 15 gallons. I

 

[bob58o]

I don’t think it would have hurt anything. Does the booster/gas mixture light on fire when a lighter is put on it? And if it didn’t gunk up the carb, I don’t see a harm in it.

Waste of money for your engine, but I don’t think it’s the problem. As long as it’s just Regular Octane Booster and not RC Nitro fuel or something. Even then, a splash per tank probably wouldn’t hurt none.

 

[bob58o]

If this guy can run a see through engine on rum… I don’t see why a bit octane booster would hurt.