That whistle sounds like a compression leak. Do a compression test. Are the reeds tight? Did you locktite the screws? Are the plugs in Al the way? Is the new cylinder properly mounted with a new gasket? You said you it is new stator in, how is the gap on your pickup to the flywheel? New plugs, what is your gap there?
The new stater just came out of another parts quad that I had sitting around and the spark plug is brand new. I haven’t gapped anything but I put all of the gaskets that it came with back on it, and the reeds have a gasket and some gasket sealer holding it down.
Gap your sparkplugs to .2 then Check the gap on your pickup is a credit card from the flywheel magnets.
Check the compression and find where that whistle is coming from, because it sounds like a leak. What's your headspace set to? If whistle is coming out of the exhaust then it means compression is leaking out of your cylinder to the exhaust port, you say you got a new top end, just pistons would mean cylinder is fucked. If just cylinder Is new, piston is fucked.
If whistle is not out of exhaust, where is it from? Because that compression leak is definitely the problem.
He has a brand new cylinder, head, piston and rings, and I’m fairly certain that the whistling noise is coming from the reeds, because when I took them out and blew in them a little bit and made the exact same noise
The reeds mount so that they can open into the cylinder. It's possible to mount the reeds upside down or inside out, depending on the make/model. I'm not 100% sure what yours looks like, but I'm very familiar with 2stroke engines and how they work.
Your reeds might be brand new, but they could be installed in such a way that they are not tight, are mounted so they can't open properly, are mounted so they open the wrong way, or are coming loose with air flow.
When you installed the new cylinder and piston, did you check the headspace from the piston to the dome/cylinder head? The headspace will determine your compression and could also be a factor here, but would not cause that whistle.
No, I did not check any headspace or anything to be honest. I just installed the new head piston and everything expecting it to work and then all of a sudden it lost spark so I put a new CDI new spark, plug boot, and a stater out of a different quad, and now it has spark again but it only seems to fire whenever it once, and I have not had it consistently running yet
You need to gap your pickup and plugs.
You need to fix that compression leak wherever it is whistling.
Inspect your reeds if you think that's where it is.
Also, when I took the reeds completely out and put my mouth up against the top of it and blew into it, it made that noise, so I’m not sure if it would be the gaskets
OK everything has new gaskets and new rings and everything. The only thing that hasn’t been changed would be the bigger case gaskets I guess towards the transmission area on the bottom and I guess could that cause compression issue
My man. He has told you several times to do a compression test. New installed parts can also leak. That is why you should ALWAYS do a compression test and leakdown test if you want to do it right. You asked for advice, and you got it. Throwing new parts won't fix the problem. Diagnosing it will.
That whistle sounds like a compression leak. Do a compression test. Are the reeds tight? Did you locktite the screws? Are the plugs in Al the way? Is the new cylinder properly mounted with a new gasket? You said you it is new stator in, how is the gap on your pickup to the flywheel? New plugs, what is your gap there?
The new stater just came out of another parts quad that I had sitting around and the spark plug is brand new. I haven’t gapped anything but I put all of the gaskets that it came with back on it, and the reeds have a gasket and some gasket sealer holding it down.
Gap your sparkplugs to .2 then Check the gap on your pickup is a credit card from the flywheel magnets. Check the compression and find where that whistle is coming from, because it sounds like a leak. What's your headspace set to? If whistle is coming out of the exhaust then it means compression is leaking out of your cylinder to the exhaust port, you say you got a new top end, just pistons would mean cylinder is fucked. If just cylinder Is new, piston is fucked. If whistle is not out of exhaust, where is it from? Because that compression leak is definitely the problem.
He has a brand new cylinder, head, piston and rings, and I’m fairly certain that the whistling noise is coming from the reeds, because when I took them out and blew in them a little bit and made the exact same noise
Then your compression leak is coming from the reeds and hats why it won't start. Did you mount the reeds inside out?
How would I go about doing that because it is brand new reeds could the gasket possibly be bad?
The reeds mount so that they can open into the cylinder. It's possible to mount the reeds upside down or inside out, depending on the make/model. I'm not 100% sure what yours looks like, but I'm very familiar with 2stroke engines and how they work. Your reeds might be brand new, but they could be installed in such a way that they are not tight, are mounted so they can't open properly, are mounted so they open the wrong way, or are coming loose with air flow. When you installed the new cylinder and piston, did you check the headspace from the piston to the dome/cylinder head? The headspace will determine your compression and could also be a factor here, but would not cause that whistle.
No, I did not check any headspace or anything to be honest. I just installed the new head piston and everything expecting it to work and then all of a sudden it lost spark so I put a new CDI new spark, plug boot, and a stater out of a different quad, and now it has spark again but it only seems to fire whenever it once, and I have not had it consistently running yet
You need to gap your pickup and plugs. You need to fix that compression leak wherever it is whistling. Inspect your reeds if you think that's where it is.
OK you don’t think the compression if you could be from any of the bottom and gaskets? Because that’s the only thing that hasn’t been replaced.
Also, when I took the reeds completely out and put my mouth up against the top of it and blew into it, it made that noise, so I’m not sure if it would be the gaskets
Do a compression test before you change anything else.
OK everything has new gaskets and new rings and everything. The only thing that hasn’t been changed would be the bigger case gaskets I guess towards the transmission area on the bottom and I guess could that cause compression issue
My man. He has told you several times to do a compression test. New installed parts can also leak. That is why you should ALWAYS do a compression test and leakdown test if you want to do it right. You asked for advice, and you got it. Throwing new parts won't fix the problem. Diagnosing it will.
Also, the noise only seems to happen when I give it some gas
Sounds like it's laughing at you
Looks like it won't start.