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Post by pitobread on Aug 1, 2018 0:42:31 GMT -5
I see the difference, you are all using the DD, i am using the Premium.
That is probably why all my material says to use drastically different numbers.
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Post by pitobread on Aug 1, 2018 0:06:22 GMT -5
Are you cats actually setting your piston stop to .1mm and setting your iggy up as such?
I think MVT in their instructions was like 1.6-2.0mm which is where mine is set currently, looking around most ignitions recommend from like 1.0mm to 3.6(my RT95 cylinder sheet says 3.6mm)
I may be missing out on a bunch more powers. I really need to mess with timing. Once I get my fueling sorted I guess I will start mucking about with that.
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Post by pitobread on Jul 30, 2018 19:52:47 GMT -5
Staged injection ThaiGyro. Using smaller injectors to aid with low throttle, and larger ones for higher RPM/load
Also using downstream or fountain injection can help, which can be seen in most modern sport bikes, using one set pre and one set post throttle to help with all sorts of weird transitional issues and allows for a better dispersion of fuel.
*Cue self plug*
Here is my fountain injection Toyota corolla from a few years back. Moreso done just to see if I could, not to fix a problem in this case. Worked great! No fires!
Multi Maps are a evil necessity with a lot of things. ITB tuning relies heavily on it to get any good driveability. Sure you can get it driving without it but it's not great as anything above 30% throttle the engine thinks it's full load. but a Multi MAP or TPS/MAP blend is marginally more difficult to setup, but once you drive it, it's night and day different.
I've never ran a vacuum gauge on a 2 stroke before would be curious to get pre and post reed valve info on one with different throttle openings and load.
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Post by pitobread on Jul 29, 2018 19:58:54 GMT -5
Remember rev up on deaccel after load
It's back.
Remember I thought I fixed it?
I didn't.
Wanna know what it is?
Its the same reason the bike won't start after a WOT pull, or falls on it's face after I give it the onion on the street.
Also same reason gas comes out of the the overflows.
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Post by pitobread on Jul 29, 2018 14:11:04 GMT -5
On cars you would have to put the car in base timing, either by removing vacuum from the advance, or by jumpering the ECU Then the timing would be locked at base.
Then set accordingly. The reason your timing light isn't on the mark is the CDI is throwing timing in, you would need to know where you are in the curve for X RPM and then set the dial on your timing light to subtract that. Voila you would be on the marks.
I have the same timing light.
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Post by pitobread on Jul 29, 2018 14:05:35 GMT -5
Problem is, without a dyno it's near impossible to tune well. Hell even with a car you can leave your laptop running on the seat next to you and tune away. But even that is hard, as there are many variables playing against you on public roads.
Good luck holding a laptop in your hand and scaling maps while trying to navigate with the other on a scooter!
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Post by pitobread on Jul 29, 2018 9:45:49 GMT -5
For any of the Megasquirt based ECU's you can solder on a 7 dollar TTL or RS232 bluetooth(depending on how you hook it up) module to communicate and use any of the phone based tuning apps that are available.
Would probably require cutting the potting off the case, or could be attached via a sub harness.
I did that years ago to a MS3X when the Dsub to Bluetooth adapters were 80 dollars.
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Post by pitobread on Jul 29, 2018 9:28:29 GMT -5
Vertigo makes the trials bike I used to own. They used to use an ECU from a company called Skynam, they recently switched to Athena GET Ecu's. The Skynam are 1k, the GET's are around 500. $500 for better starting, a few HP and better fuel economy is cheap in my books. The Vertigo was flawless, power was smooth and linear, and they made the most HP in their engine class and for a 300 it was pretty decent on fuel. The majority of the new KTM and Husky 2t dirtbikes are also EFI (no O2) There are many China ECU's that use a version of Megasquirt code(still uses Megatune, or a modified version of it) They don't acutally use the same processor as the Megasquirt, or Micro. They are 200 USD shipped for a 2t kit with MAP Sensor. Aliexpress ECU KitThere are 3-4 Arduino ECU projects speeduino.com/wiki/index.php/Speeduinotechestigate.com/arduecu-the-worlds-first-arduino-ecu/www.hainesengineering.com/rhaines/aircraft/hainesecuarduino.htmThere are now hardware kits you can also get to turn a Rasberry PI into a fully functioning ecu. There are many cheap options. |
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Post by pitobread on Jul 28, 2018 21:29:21 GMT -5
I have had an EFI 2T trials bike. It worked pretty great. No O2 only TPS/AIT/CLT and RPM for map scaling.
I actually have one of the ECU's here, and fully plan on rigging it up to run on a scooter. I have the injectors already, just need to make throttle bodies.
You could use the o2 just for setup, but you wouldn't want to run it full time.
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Post by pitobread on Jul 27, 2018 16:42:06 GMT -5
The flywheel key is really the only thing that comes to mind. I have never had a 16 tho, so I don't know for sure. Just the pickup is in a different spot and flywheel is different.
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Post by pitobread on Jul 27, 2018 14:30:26 GMT -5
Cool pito!Can it be programmed for a 2 stroke curve as well a 4 stroke curve?What is the RPM limit?? Yes it allows you to do a reverse curve for 2t. It allows for total 60 degrees, my bad. I modified the software to do 16k. Stock was 12k, but for 2t that's no good. I believe the guy tested the iggy to 30k. |
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Post by pitobread on Jul 27, 2018 14:26:08 GMT -5
Most all crank key ways are cut at TDC,bet Honda and Kymco are too..Are the stators and CDI boxes similar and swap able? The stators should be swappable with a plug rewire, and they are also clocked differently on each case. The CDI boxes are not swappable. Honda is DC (small CDI) Kymco is AC. All Honda CDI are AC fired till the AF34 horizontal. Oem that is. The kymco cases are based on Honda AF18, the ignition pickup is in the same spot on those. AFAIK the cranks are the same between 16 to 18, just the flywheel has the key in a different place. Key is cut to TDC. |
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Post by pitobread on Jul 26, 2018 22:27:57 GMT -5
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Post by pitobread on Jul 26, 2018 21:42:09 GMT -5
Change moving sheath ramp pins to other angle and try those?
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Post by pitobread on Jul 23, 2018 22:14:25 GMT -5
Riding video at the end, it's a fun corner carver.
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