Search: Posts Made By: marbobj
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Replies: 4
Views: 112
Posted By marbobj

That type of thing could be air flow (to include...

That type of thing could be air flow (to include exhaust). You've eliminated the exhaust with your work on the muffler, but try it without the air filter and see if it makes any difference.

On a...
Replies: 9
Views: 297
Posted By marbobj

That's great. Two cycles can be a little ornery. ...

That's great. Two cycles can be a little ornery.
Did you run the primer through a few cycles after you put the gas back in?
Replies: 9
Views: 297
Posted By marbobj

The compression is probably OK. Dump all the gas...

The compression is probably OK. Dump all the gas out of the tank. Then full choke, no throttle pull it over three or four times (no magic number - just a few to clear out the carburetor). Then take...
Replies: 4
Views: 118
Posted By marbobj

Depends how much trouble you want to go to for...

Depends how much trouble you want to go to for reinforcing it. If it is causing trouble and you are the last chance to fix it, I would bolt 1/8 inch strips on the outside of the deck. Probably 1...
Replies: 18
Views: 493
Posted By marbobj

To clarify: you have had one crankshaft and a...

To clarify: you have had one crankshaft and a cam and two flywheels? I understand the two flywheels.

Is there a chance you have a mismatch on the flywheels to the crankshaft. That would affect...
Replies: 18
Views: 493
Posted By marbobj

Compared to the original crankshaft and flywheel,...

Compared to the original crankshaft and flywheel, the second crank/flywheel are identical?

Also the key shearing only started with the overhaul you did and started with the crank/flywheel set...
Replies: 18
Views: 493
Posted By marbobj

When you lost the first key, without regards to...

When you lost the first key, without regards to how strong the backfire, the key should have simply sheared. A cracked flywheel can happen with the key out of place and the flywheel torqued against...
Replies: 18
Views: 493
Posted By marbobj

It did kick back? Then that is likely what is...

It did kick back? Then that is likely what is doing the key shearing. It's timing almost for sure. When you put the flywheel on and align the keyway with the key push the flywheel on by hand and turn...
Replies: 3
Views: 220
Posted By marbobj

I would lean towards worn rings or head gasket...

I would lean towards worn rings or head gasket and do a compression check. Then go from there.
Replies: 18
Views: 493
Posted By marbobj

Is there a kickback or backfire when it shears? ...

Is there a kickback or backfire when it shears?

Shearing the key that quickly, with no back fire would point to a poor fit of the flywheel to the crank. It may be a worn bore on the flywheel. If...
Replies: 3
Views: 168
Posted By marbobj

You're thinking you have a throttle control...

You're thinking you have a throttle control sticking, then? With the welder in the equation it sounds like the solenoid kicks the throttle open when the welder puts a load on the generator and the...
Replies: 13
Views: 372
Posted By marbobj

It's a good idea to check the bottom of the bore...

It's a good idea to check the bottom of the bore to make sure it isn't oval shaped across the crank perpendicular.. Irregularities usually show up in the cylinder walls as you start honing. You just...
Replies: 19
Views: 352
Posted By marbobj

You're good with what you have. You should have...

You're good with what you have. You should have fuel in the bulb.
Replies: 19
Views: 352
Posted By marbobj

It really isn't intended to pressurize the tank....

It really isn't intended to pressurize the tank. The primer just pulls gas from the tank, through the carb and returns the fuel to the tank. Consequently it returns the same amount it takes from the...
Replies: 19
Views: 352
Posted By marbobj

Is this still the...

Is this still the case?.........................................
Replies: 19
Views: 352
Posted By marbobj

It circulates gas through the carb and back to...

It circulates gas through the carb and back to the tank. It's purpose is to purge the lines and carb of air and fill the fuel reservoir in the carburetor. When you cold start it the choke has a full...
Replies: 7
Views: 247
Posted By marbobj

Try pulling the plug wires one at a time and see...

Try pulling the plug wires one at a time and see if it runs about the same on each of the opposing cylinders
. Also try disconnecting the coil wires for the kill. If you have a bad diode it creates...
Replies: 7
Views: 247
Posted By marbobj

Have you pulled plug wires one at a time to...

Have you pulled plug wires one at a time to isolate a possible ignition problem. Also that has two coils so there would be a diode in the kill wire. You might disconnect the kill wires at the coil...
Replies: 3
Views: 166
Posted By marbobj

Vapor lock and fuel pumps go hand in hand so with...

Vapor lock and fuel pumps go hand in hand so with a gravity feed you should be out of the woods in that area.

Coils heat up and one of the big issues with that type of coil is whether you have a...
Replies: 3
Views: 166
Posted By marbobj

If it gets worse as the temperature goes up it's...

If it gets worse as the temperature goes up it's probably vapor lock. A cheap permanent fix would be an electric fuel pump. I would put it away from the engine.

Other things may be the coil or...
Replies: 6
Views: 201
Posted By marbobj

Does it have glow plugs or an intake manifold...

Does it have glow plugs or an intake manifold heater? Do the starting instructions specifically say to not use ether?
Replies: 3
Views: 186
Posted By marbobj

For the cold starts the choke has to be closed,...

For the cold starts the choke has to be closed, then open after the warm up, which is pretty basic. That's the drawing you had in the picture, as a possible problem. It could be, but easy to check...
Replies: 3
Views: 186
Posted By marbobj

If it was working before you fixed it and now it...

If it was working before you fixed it and now it doesn't start cold it may be an air leak at something you didn't get tight. With it running spray WD40 around the carb mounts and note any rpm change.
Replies: 14
Views: 499
Posted By marbobj

Without specific information from the person...

Without specific information from the person posting, it's all guessing.
Replies: 11
Views: 313
Posted By marbobj

Probably the automatic choke acting up. That...

Probably the automatic choke acting up. That would be heat driven from the exhaust = off and pulled on with no heat from the exhaust.
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