20 Most Recent Briggs & Stratton 190cc 875 Series OHV Walk Behind Lawn Mower Engine 25mm x 3532Inch Length Crankshaft 12S5020025B1 Questions & Answers

i just tip mine over and catch it into a can out of the dip stick hole

Could be the spring has been stretched when you ran into the bush. With the engine running but out of gear move this spring by hand and see if the engine speeds up If it does I sometimes cut off the end of the spring and pull a piece out and make a new end with needle nose pliers or buy a new spring. I like to repair mine.

Try MFG website, or email their customer service, or try filepeep.com if they have it, or try manualslib.com

Typically just called a drive belt cover

it could be on the side of engine are on the bottom of engine

Your mower doesn't have enough power to handle very thick grass at high speed. You need to go slower across the lawn. That's easy to do if this is a push mower (just don't walk so fast) or if it's a self-propelled model with a speed control. But if it's a single-speed model you'll have to mow the lawn in fits and starts: squeeze the lever to move it forward; release it when you hear it bogging down; wait for the motor to reach full speed; squeeze the lever to move it forward again; repeat. Also, is the grass very high? If so, try setting the cutting height higher on the first pass, then lower it for a second pass. Finally, make sure the blade is sharp.

White smoke would indicate a fuel problem. The engine is flooding. There are a lot of possibilities but the first area I would check is the carburetor float level and inlet needle.

Blow back is probably valve lash with all the work u have done. Check also ur governor and make sure the spring is hooked up

When a failing coil gets hot they quit putting out spark

check to see that the spark plug wires are not bare where they could be shorting out

Did you drain fuel tank before refilling with fresh fuel? Drained carburator bowl good, drained crankcase and refilled with fresh oil good,removed air cleaner and dried out good. One question for you , did you remove spark plug and drain any water that may have gotten into your cylinder through an open valve? There could be water sloshing around in the cylinder, gas and water will not fire, and water on spark plug wont allow plug to spark. If you need any more help please get back to me , I believe this is the first under water problem I've encountered. GOOD LUCK.

You should put it at .020

Are you sure you had spark before you took it apart? If you are not sure, then the Ignition Coil may have went bad. How did it act before you decided to take it apart?

Jim

I am going to assume that the fuel is leaking from the air filter area....coming out the front of the carburetor or out of the primer bulb. This is an indication that the float in the carb is not closing off the fuel internally in the carb. Most of the time this is caused by storing the unit with gasoline in it. Gas will turn thick and varnish the inside of your carb in as little as 90 days. The carb will need to be cleaned. Usually this is done by removing the carb and cleaning it with an aerosol carb cleaner. Sometimes you can get by with just removing the bowl from the bottom of the carb and lightly spray clean the float pivot area, the inside of the bowl, and the brass jet that hold the bowl on. The float should pivot freely and pushes up on a needle valve that closes off the fuel flow.

To prevent this in the future, use a fuel stabilizer in your gasoline. Or, when you are done using the equipment, run it until all the fuel is gone.

Your Troybilt unit is probably covered by a 2 year warranty, but old varnished fuel in the carb would probably not be covered.

Good luck!