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Post by smallenginevelocity on Jan 26, 2019 16:19:32 GMT -5
 Where in the world does the orange ring go. I found the “squish” rate for all the spacers , but for the life of me can not find anything about this orange ring. |
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Post by gsx600racer on Jan 26, 2019 17:05:16 GMT -5
The orange ring is for the head or cyl if there is a machined groove for it. Examples:   |
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Post by ryan_ott on Jan 26, 2019 17:48:46 GMT -5
That gasket set is a “kit” it covers more cylinders then what you are working with. Less parts to stock.
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Post by smallenginevelocity on Jan 26, 2019 21:38:34 GMT -5
That gasket set is a “kit” it covers more cylinders then what you are working with. Less parts to stock. Yes thanks I used this in my video  Zuma Athena Race 70cc BBK install : Day One building the motor youtu.be/A2CkWl4Y1s8 |
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Post by ryan_ott on Jan 26, 2019 22:18:04 GMT -5
Can I make some suggestions, (going by your vid) first there is a lot of info on here in the tech section and the tabs on the left side (desktop only) anything you could or would ever need to know about scoots.
If you are aware of these items please disregard I was judging by the video that you could use some pointers.
I would strongly recommend gapping the ring to spec, they are usually large due to differences in cylinders. If not gapped the ring will wear down quick, possible seize and destroy the coating in that cylinder.
Do check the squishising solder and set to manufacture specs, usually around .6-.7mm
Seal the base and especially the reed gaskets with silicone sealant, even if your using gaskets. Ultra grey works fine. These areas are prone to air leaks and will lead to a lean condition.
See manual to left to prime oil pump if you plan on using it.
The 2005 gears are really high at 14.6 so without gears you may see no increase in top speed.
2 strokes and pipes go along way (and cvt tuning) there is a lot of hidden potential in these engines.
If you have questions about these engines ask away.
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Post by smallenginevelocity on Jan 26, 2019 22:35:48 GMT -5
Can I make some suggestions, (going by your vid) first there is a lot of info on here in the tech section and the tabs on the left side (desktop only) anything you could or would ever need to know about scoots. If you are aware of these items please disregard I was judging by the video that you could use some pointers. I would strongly recommend gapping the ring to spec, they are usually large due to differences in cylinders. If not gapped the ring will wear down quick, possible seize and destroy the coating in that cylinder. Do check the squishising solder and set to manufacture specs, usually around .6-.7mm Seal the base and especially the reed gaskets with silicone sealant, even if your using gaskets. Ultra grey works fine. These areas are prone to air leaks and will lead to a lean condition. See manual to left to prime oil pump if you plan on using it. The 2005 gears are really high at 14.6 so without gears you may see no increase in top speed. 2 strokes and pipes go along way (and cvt tuning) there is a lot of hidden potential in these engines. If you have questions about these engines ask away. Feedback take no I did my best for setting the squish and the rest. The scoot has been re-geared and I’m pretty good with CVT tunning from my ruckus. I did use the copper seal stuff. I did not know about the gap on the ring. I left out quite a bit from the video. I have a second Zuma and will be doing all of this again. |
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Post by smallenginevelocity on Jan 26, 2019 22:36:37 GMT -5
I ment feedback taken. Autocorrect  |
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Post by ryan_ott on Jan 26, 2019 22:43:19 GMT -5
Just trying to help a fellow enthusiast stay on track. Glad you got it covered.
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Post by smallenginevelocity on Jan 27, 2019 0:26:10 GMT -5
Just trying to help a fellow enthusiast stay on track. Glad you got it covered. Thanks I’ve learned a lot just searching around in here. I hope to get decent at this |
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Post by pinkscoot on Jan 27, 2019 11:17:46 GMT -5
It takes a few times doing it and a few soft seizes and air leaks before you start to get a clue about it. If you are like me you do it for the fun of it.
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Post by benji on Jan 27, 2019 13:03:03 GMT -5
Airleaks are a big problem with 2t bikes, Along with air/fuel ratio. Other than that, they're simple as hell. As far as cvt tuning goes, your ruckus will be a completely different animal then this bike, and Ryan is waaaay right about pipes. Get a good pipe, and you'll fly- if you got the cvt tuned right. I can't tell you how many times I've seen a post where guy buys a pipe and then says "it won't even take off- I gotta push it with my feet until it hits like 6-7k RPM then it throws me off the back" haha. 2t bikes make power really high. My idle is set at 2500 RPM and my clutch is set at 7k rpm engagement, and I've got a pretty mild setup.
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Post by smallenginevelocity on Jan 27, 2019 21:53:42 GMT -5
Airleaks are a big problem with 2t bikes, Along with air/fuel ratio. Other than that, they're simple as hell. As far as cvt tuning goes, your ruckus will be a completely different animal then this bike, and Ryan is waaaay right about pipes. Get a good pipe, and you'll fly- if you got the cvt tuned right. I can't tell you how many times I've seen a post where guy buys a pipe and then says "it won't even take off- I gotta push it with my feet until it hits like 6-7k RPM then it throws me off the back" haha. 2t bikes make power really high. My idle is set at 2500 RPM and my clutch is set at 7k rpm engagement, and I've got a pretty mild setup. Pipe I have came with the bike. I’m not even sure if it’s good for my 70cc BBK , taking a picture.  |
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Post by benji on Jan 28, 2019 0:32:03 GMT -5
Not bad. Gianelli is a cheap brand, but it's not bad stuff. My brother has one.
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Post by smallenginevelocity on Jan 28, 2019 9:29:15 GMT -5
So the solution to fix that lag between 20 and 35 is exhaust ? I’m getting the impression that your exhaust on a 2t is effects your speed WAY more than a 4t bike/scoot
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Post by ryan_ott on Jan 28, 2019 9:37:20 GMT -5
A lot of that “lag” can be in the cvt tune. If you clutch engages at 5,000 rpm and the pipe doesn’t make power until 7,500 that you will have a dead spot that can be seen as a bog or lag of acceleration. Also the 2002-2005 Zuma have a dual angle TD slots which could also add to the laggy feel. 2008-2011 are straight groove and perform much better for a stock part.
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