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Post by spaz12 on Mar 15, 2016 17:16:45 GMT -5
I think that it would really disrupt the air flow.
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Post by cwazywazy on Mar 15, 2016 17:31:00 GMT -5
I think that it would really disrupt the air flow. Well, I was going to grind away at the port until I reached that black circle to match the manifold, but my question was would there be enough material left to seal properly? I can see the o ring on the manifold hanging out with it on the head.. |
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Post by 90GTVert on Mar 15, 2016 17:31:50 GMT -5
You guys think I could get away with this intake manifold? It's pretty big..  That's huge. No need for that kind of cross sectional area on this engine. I'd think you'd lose lots of port velocity and have a lot of dead area in the port. Even if the engine wanted a port that big, all of it must be squeezed through the pinch point around the valve guide and then around the little valve anyway. There is not enough meat on these heads to make anywhere near a smooth transition through the port with a ginormous port entry like that. I just can't see it being a good thing. Also, you're barely left with any sealing surface left judging by the outline. If you really wanna run a big carb, consider a standard GY6 150 intake. |
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Post by cwazywazy on Mar 15, 2016 18:04:52 GMT -5
You guys think I could get away with this intake manifold? It's pretty big.. That's huge. No need for that kind of cross sectional area on this engine. I'd think you'd lose lots of port velocity and have a lot of dead area in the port. Even if the engine wanted a port that big, all of it must be squeezed through the pinch point around the valve guide and then around the little valve anyway. There is not enough meat on these heads to make anywhere near a smooth transition through the port with a ginormous port entry like that. I just can't see it being a good thing. Also, you're barely left with any sealing surface left judging by the outline. If you really wanna run a big carb, consider a standard GY6 150 intake. Yeah.. I ordered one of those rubber intake spacer thingies for a 150 and I'll try and use that for a smooth transition so I don't have to take away a crapload of material from the port. |
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Post by cwazywazy on Mar 15, 2016 18:38:45 GMT -5
Oh yeah, earlier with the 5g sliders I decided to pin it open and see what happened.. I expected the acceleration to gradually go down as the engine revved higher but instead I got a hard stop in acceleration. I thought my variator fell off again or something.
EDIT: Pretty sure I put the sliders in wrong.. The slanty side goes up ish and not out against the slidey bit in the variator, right?
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Post by 90GTVert on Mar 15, 2016 20:23:13 GMT -5
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Post by cwazywazy on Mar 15, 2016 20:25:12 GMT -5
Yup. I did that wrong.  |
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Post by cwazywazy on Mar 16, 2016 15:07:05 GMT -5
Rode it for a decent while today. I changed out the pilot jet and didn't want to tune it properly before leaving so I ended up with the idle high enough to engage the clutch a bit. That poor thing was burning up at a light I had to stand at for a couple minutes or so. Before the ride I had to start my scooter by putting it on the charger to give it a bit of extra oomph before it'd fire. I thought the ride to the gas station to get something to drink would be enough to start it.. Decided that was the time to go and buy one of those lithium booster packs at the auto store next door. 3 times the price that I've seen it at other places. Ended up getting rescued by an employee with a good ol lead acid booster pack. The mix of stock (5g?) and 9g rollers is too light. Engine was out of breath at 42mph on flat ground and was screaming when I hit 48 downhill.
EDIT: Also at the gas station I used the air pump. 15PSI on the front and just under 30 on the back..
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Post by cwazywazy on Mar 16, 2016 18:06:47 GMT -5
 Absolutely flawless. |
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Post by cwazywazy on Mar 17, 2016 16:18:54 GMT -5
Did some amazing repairs to the hole in the muffler and my seat mounts.    Still can't get it to idle. Is this too rich or too lean? |
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Post by 90GTVert on Mar 18, 2016 8:12:43 GMT -5
Either my PC is doing something dumb or there's no sound on your video.
EDIT : It's me. I can't hear any YouTube stuff ATM.
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Post by sumo210 on Mar 18, 2016 8:53:23 GMT -5
mine was doing the same thing..
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Post by cwazywazy on Mar 19, 2016 17:34:40 GMT -5
I got it to the point where it idles somewhat consistently without dying. RPMs still hang sometimes when I lift off. Good enough for now. I also installed the stock horn in front of the battery. Got it all mounted up and the wires soldered in place. It worked fine the last time I played with it using a 9v battery so I have no idea what's wrong..
Not a power issue, does the same thing with a 9v battery where before a 9v would make it sound like an old timey car horn.
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Post by cwazywazy on Mar 19, 2016 21:58:52 GMT -5
What's the name for that rubber sealy dealy that goes around the head at the top of the cooling shroud to seal it? Mine disintegrated the first time I took the shroud off and I've been running without it.
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Post by 90GTVert on Mar 20, 2016 7:33:49 GMT -5
That's a fan cover gasket according to PFS who sell it (part #151-176).
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