Problem with after market driven pulley on trail master

[bob58o]

You the man ima leave you in peace for a bit. So even if my timing is off. It running great for the first 5 min an then falling off sounds like the problems from bad timing?

What was the deal with the ignition coil? How did you test it? It is very possible you damaged or are overheating it by running too tight of a gap between ignition coil and flywheel magnet.

I set mine by loosening the ignition coil mounting screws, then put feeler gauges against coil (for you…. 0.050” , 0.035 stacked with 0.015), then rotate flywheel until magnet pulls the coil tight and squeezes the feelers. Then tighten and adjust if needed to keep both sides at the same distance. Tighten it down then recheck.

 

[Whitetrashrocker]

No. If it runs it's not the timing.

It sounds like fuel delivery issues.

 

[Ryanhodge2715]

I used my other one off the cart I blew and I know for a fact that one is good. Like I say I tried .030 an .035. And acted the same exact way Will go up to 50 in couple hours on baby duties until about 9 gonna run it an ill check back in. An looking at the carb video you posted i don't have a slide carb on it it is a aftermarket but just like the stock one. It just has what I realize now a fuel mixture screw where it mounts to the engine. I have it dialed where I find it runs best with no hesitation when ripping it. The Lil carts Nasty compared to where I started. I hit the gas an it wants to break loose can rip donuts on a dime while it's running.

 

[Ryanhodge2715]

I used after market emulsion tube that come with airfilter an used the 1 out of 3 jets that worked best. Maybe I should put original emulsion tube back? It did seem to have more holes then the new one

 

[Ryanhodge2715]

Mannnnn ****kkkk this pos still the exact same way

 

[Ryanhodge2715]

.050 made no difference at all
Side note I'd like to think it's bc I left my fuel on but my carb has alot of gas residue all over it...... could a leak cause it smh. Sware i don't think it was like that last night tho

 

[Ryanhodge2715]

I know I have all new fresh gasket on it an probably overtightened if anything tho mo way there is air leak

 

[Whitetrashrocker]

Get it idling. Smoothly.

Take some carb cleaner spray with the straw on. Spray around the intake gaskets. Don't use a bunch. Just a quick squirt. Don't get it in the intake itself.
Listen to the idle. It will either bog down or Rev a little if you have an intake leak.

Also tightening the snot out of stuff isn't proper either. A good snug is OK. You want to tighten evenly also. One side gorilla torqued and the other side loose will bind and can cause a leak. Did you make sure the gaskets were alighned proper. I've seen some that are symmetrical as far as mounting but there is a hole that can be located wrong.
I'm just spitballing. It's hard to fix from my couch.

 

[Ryanhodge2715]

Yea I slowly tighten a half turn at a time on each side when installing the carb.... if it was air leak figure it give me issues immediately right? My road is about half mile to the stop sign I drive to it an back an every time it's jusssst as soon as I come back up to my drive way (about a mile) it start spuddering like crazy

 

[Ryanhodge2715]

An no all gaskets definitely right way as well. But I feel you man throw **** at the wall till it sticks

 

[Ryanhodge2715]

Man I'm bout ready to run this damn thing off a bridge

 

[Ryanhodge2715]

Was considering I got a vm22 knock off slide carb that was on my reverse modle cart it had the gear box so engine was further up an cleared. I couldn't use on my black one bc the back of the frame catches the bottom about 3/8 to half inch wonder if I just jack it up an get a new chain maybe it will work out idk... im off tomorrow so I plan on removing governor an taking the starter off should have done it befor putting my fly wheel ..

 

[panchothedog]

You are beating yourself to death with the timing issue. If the engine runs decent for a few minutes and then starts struggling there is NO WAY IT HAS ANYTHING TO DO WITH THE TIMING.

 

[Denny]

I agree it sounds like a fuel delivery problem. Like the carb may be starving to get gas. Is there a screen or filter in the fuel valve? Is the tank vent maybe plugged up? When the kart starts running badly try pulling over and take the gas cap off and see if you can hear a little whoosh of air?


The reason to advance ignition timing is with a bigger cam comes a bigger charge of air and fuel. This takes a millisecond or two longer to completely burn. Therefore if you start the spark earlier to burn all the mixture.

I enjoy helping people and I like to make others laugh. I like when others look good because of me or some kid is happy because dad, mom or grandpa fixed their kart because I helped them. It’s even better when some kid who doesn’t know which end of a wrench to hold fixes their own kart then sticks around to help others. Take Bob for instance when he first came here he was like that. Now we can’t get rid of him.

 

[panchothedog]

It doesn't work like that. You have a fuel delivery problem, or a carburetor problem. Timing doesn't change after 5 minutes, and then fix itself after the engine is stopped.

 

[Ryanhodge2715]

Well with my other motor being blown an all the talk about it letting go randomly went ahead an broke it down to remove governor. But forget my big socket set at work... so currently trying to find a socket to get my fly wheel off. Might be a bit but ima swap old emulsion tube back in an play with jets more. I'll chime back in soon as I can

 

[bob58o]

Everything still sounds like bad ignition coil to me. Unless you got the low oil sensor still functioning, then it might have to do with that.

And your communication is less than clear.

What Flywheel do you even have on it? Who made it? What model?

What ignition coil did you use when setting gap to 0.050” with this “unknown” flywheel. The old one or the one known to work?

The old one may be trash.

If it’s the ignition coil, I don’t ask for much in return. Only that every child born after this day is named some variant of Bob or Rob or Robert.

Can’t wait for the birth of little Roberta the 3rd

 

[Ryanhodge2715]

Mr Bob you sound Lil sensitive since denny called you out stringing this along 3 pages after I said it runs great first 5 min. An now maybe you realize you have wasted alot of effort explaining this to me( although it's great stuff to know on my end) as I said before just after market aluminum fly wheel of Amazon for like 30 bucks say (HIAORS 10k) but no these trail masters do not come equipped with oil sensors I assume since they are ment to be off road it would be an issue to have one. An the stock ignition coil that came on both. I mean I ain't saying it's impossible but probably equivalent of being hit by lighting twice probability hear.

 

[Ryanhodge2715]

I did manage to clock 36 mph on my little app. So when it is running it's Def running great compared to 22mph previously. But I thought like you are it seems when it warms up it kicks the bucket an my little bit of Google searching points to that as well Bob. Only thing I find is bad ignition coil with that symptom.

 

[Ryanhodge2715]

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