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Old 01-12-2020, 07:20 AM
ppplatt ppplatt is offline
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Default wtp 60cc engine won't run

hey guys, i recently purchased a kart for my grandson which has a wtp 60cc 5264 engine, i have fuel to it and a good spark, compression seems okay, but can't get it to run, do any of you have any suggestions as to why it won't run, im still pretty new to karting.

cheers in advanced.

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Old 01-12-2020, 07:54 AM
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JTSpeedDemon JTSpeedDemon is offline
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Check the carburetor. Get a can or two of spray carburetor cleaner from the local auto parts store and disassemble the carburetor. Clean out every part and passage. When gas sits too long, it gets stale and plugs up the carburetor. This is the cause of an engine not starting about 85% of the time.

Is it a 2 stroke? Can you post up some pics of the engine?
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Old 01-12-2020, 08:47 AM
ppplatt ppplatt is offline
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It’s a two stroke yeah and I’ve already cleaned the carb and fresh fuel, got a new plug, not sure what the compression ratio should be, I’ll be able to post pics just not tonight, is there anything else you can suggest
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Old 01-12-2020, 10:02 AM
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Hi and welcome..
fuel? I hope you have it properly mixed, since otherwise you're likely making it worse everytime you try.

If I assume that engine sat for a while.. I'd suggest a 1:20 mix for now,
just to get some additional oil back in.

I think we talk some sort of fuel-pump-carb since those are quite common on engines alike.
And you must check the fuel pump.
easiest by just detaching the fuel tank and instead installing a piece of clear tube to the carb,
going to a small container (jam jar or such) with fuel
so that you can see the fuel flowing in the fuel line.

If you don't you can verify a fuel pump issue by raising the jar above the engine.
so the carb will be gravity fed with fuel...
If the engine's starting now you need to fix the carb's fuel pump
That is if you don't have an external fuel pump on the tank..

In short: we need pics!

So that we know what carb what fuel pump and what else we need to deal with

carb cleaning isn't always a one time process.
sometimes the jets are clogged so badly that it takes three or four attempts to have them clean again.

with an integrated pump, you should remove that first, and then boil the carb in lemon juice.
and after that's done, poke all the small vents with some monofilament fishing line

but frankly, the diaphragm of the pump may has been ruptured


ps compression ratio should be around 12:1 to 13:1 ideally
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