I recommend using a NGK BKR5EIX pt. # 6341 spark plug . IT will last 8 - 10 years depending on the hours per week it is used, commercially a good 5-6 years . The other problem is the fuel filter. An in line filter like a NAPA 3012 will filter out the the trash that the factory screen filter allows to get to the carburator. The carburator is another problem as water gets is the gas much quicker . Take bowl loose with a long pair of needle nose pliers & clean if bowl leaks gas may need to get the 2 gaskets to bowl. Make sure you have your model # . Fuel is another issue as there is more alcohol in gas these days . Premium gas may help if you don't use daily BUT the product that I have found that works best to disperse water in gas is REDLINE SL-1 fuel additive. 1 ounce per gallon will make the alcohol & water disapear. Exception to this would be when you see water on the bottom of the tank . In this case drain the tank first before cleaning the bowl of Carburator . Just a reminder to never leave the switch on when the motor is not running . Most 14.5 B & S have an electric switch that allows fuel to go through carburator when switch is on. If that does not fix your problems you have a spark issue , a valve clearence adujst hot or cold ? or broken connecting rod . Mechanical issues should be taken to a specialist !

Since this Zama carb has NO primer bulb, I feel that old, swollen check valves in the MAIN NOZZLE and the IDLE circuit, may have been the contributing factor to the flooding; but Zama states it's flooding causes in regards to carbs with primer base assemblies on them. Even with lowered metering lever and new diaphragm and the mylar fuel pump (butyl rubber one pumps more)...flooding did occur. A test on the needle valve showed for the most part it was closing and opening properly (even though it was a USED needle valve). I probably should have got the RB kit, not the G & D kit. I will post one final time on this machine once the NEW carb is installed.

My Stihl 028 won't start. It ran fine last month. So far, the following has been tried: 1. I've replaced the coil and plug. There is a strong spark. 2. I sprayed fuel into the carb. 3. I've pulled the kill wire. 4. I checked the flywheel key. It is fine. 5. I tried new fuel. The saw won't even sputter. The piston is moving up and down as it should. I can't figure it out. With spark and fuel, it should do something. Any ideas?

I think you spent your money wisely... Imagine if you can - burning up the motor because you saved $37 dollars last year... I can certainly understand trying to save the money... I have had 1 tire going flat on my car and have tried to plug it several times (over the last 2 months). Just last week I was stuck on Rt 80 with heavy traffic racing by, not a very safe place to change a flat tire (which is not holding air after my failed plugging attempts)... So Ive learned my lesson .... So - I made a few calls and ended up telling the local tire guy "money is really tight right now - so I need the cheapest tire you have available for my car..." He gave me pretty good prices and asked me for my phone number - he told me he would call be in a few minutes - and about 30 minutes later he told me he had a couple of really nice used skins and to come on down and have a look. Turns out after I got there - I had 2 other tires which were in *seriously* bad shape (the 4th tire is a good - another long story). So I had to decide; do I swap the singe dead tire, or pay the 150 for the 3 nicely used skins... I changed all 3 tires. BTW - I saved over $300 dollars !!! (each new skin is $170 new). So I spent the little extra money (for which I was not really prepared for ) With the hopes that I am "playing it safe". but I digress - I think sometimes we push things a bit too far... But dont realize it - until something is *really broke* and then its too late... left only with *big* repair bills (and mad at ourselves because we made the wrong decision earlier). Good luck to you.