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Page 1 Zama Newsletter Volume 2, Issue 3 October 2022 Continue on page 2 I N S I D E T H I S I S S UE 1 Setting and Adjusting a Zama Carburetor 2 Technical Support Questions In this edition of the Zama newsletter I will discuss how to set and adjust your Zama carburetor. All Zama carburetors are...

I am posting a couple more pics of the top of the carburetor.

I am sorry, did you look at the picture? I see no where on that red thing or the white thing where a screw driver would, of any size would have any effect. Also, it appears that both these things have a locking mechanism to prevent them turning. I could be wrong, hope I am, but I don't see in...

I changed all the fuel lines and the primer. No change, still dies. I am going try adjusting the high speed adjuster. I think I need a special tool to do that. I am attaching a pic of the top of the carburetor. The choke is the bigger white thingy. The other thingy (the white and red thing)...

I replaced the primer. Did not help. Seems to prime better, but the machine still dies. I tried pressing on the primer before it dies, pulling more gas into the carburetor. Did not help, still died. I need some more of your thoughts, please.

Thank you . The filter was in the tank. The primer is suppose to draw (pull) gas from the tank through the carburator, and back to the tank. The current primer bulb does not get hard. I suspect that might be an issue.

Thank you. I am going to try replacing the primer pump. In my mind, I am thinking it is not holding the pressure, the bulb will not get hard. The check valve is not closing (I think). At this point I am not sure of anything.

Thanks, I did put a new fuel filter on it, no change. I have not replaced the fuel line, yet. I have been thinking the same (I just went for a long walk, when I do my best thinking). The lines do not appear to be cracked or split. However, the primer pump does seem to be drawing air, not...

I give up, I need help. I have been working on my Troy-built TB90BC Bushcutter. It is old, but still use to work. It will run on choke. Idles great and runs great for about 30 seconds, then just dies. I have cleaned the Zama C1Q-P18A carburator in my ultra sonic cleaner over night. (Before...

My Stihl 021 starts runs on choke, switch to run, very high rpm for less than a minute then dies. New carburtor, adjusting air fuel does nothing. Any ideas?

Further to this discussion. I have continued researching, and it appears that the compression is a common issue with these engines. It appears that setting the value clearance to a tight .004" to allow the exhaust valve to open a fraction of a second sooner will release some of the...

Some more info on this issue: I jumped the solenoid today and the same issue was evident, so that eliminates the solenoid. I put a battery charger to boost the battery, this caused the starter to spin the engine every time, so this points to the amount of cranking amps being drawn by the...

Anybody heard of this? I looked at buying a new starter, just researching so far. The new starters have 9 teeth instead of the ten teeth, suggests more torque to turn that engine. This would suggest there might be a common issue with these engines. Any thoughts?

That is interesting, I suppose if the compression is strong the starter might not have enough torque to turn the engine and after it bumps a few times the valves might open enough to let the compression decrease, thereby letting the starter get a few revolutions in, tyhereby starting the engine...

Interesting, have not considered this possibility. How would you suggest I might test whether the starter shaft might be bent? Other than swamping the starter with a new one?

Good morning. I have a White Outdoor Transmatic Lawn Tractor Model 606, with a Kohler engine Model SV7103 Spec# SV710-0011 Serial # 370108653. My issue is It is hard to start. Turn the key and I can hear the soloonode click and the starter engage, but not turn the engine. Repeat and no turn...

Thank you for the responses. however, this engine runs fine, except when it has been running just fine for a while, it stops running fine. I let it rest for a time and it will start again and run just fine again for a while. Once it gets hot it starts to fail. It seems to be caused by...

I have this Ryobi C430 weed eater, 4 cycle. Runs great, except it gets hot, then will not idle, gets hotter, dies. Will not start. Let rest for 5 minutes, starts right up. I idles fine. Gets hot again, dies. Repeat. Can someone point me in a direction, please.

Except MTD does not sell the pads separate, have to purchase the two whole brake assemblies. That would make the brake pads at a cost of $150.00 CAD.

Thanks for the reply. You indicated that you managed to get some, although the rivit holes were in the wrong place. Can you tell me where you acquired the pads? I can fix the holes, I need the pads. Thanks

Hi. My blades will not disengage. The blade brake pads are pretty worn. From MTD, can only purchase the whole brake pad assemblies. Only the pads are worn. These are only rivited to the assembly. Has anybody found a source for these pads?