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Post by 808ministroke on Sept 25, 2019 0:06:22 GMT -5
Okay so things have been awesome, I switched to castor oil running 3oz per gallon. Got an air filter finally just a duble layer uni but man does it help, I have always noticed that even a piece of pipe at the mouth of a carb even with nothing at the end helps I guess due to calm the mix or allow it to be even get better swirl, atomization and eventually better combustion.
Question to Everyone!
I’m going to use my spare stator to advance the ignition timing.
I already drilled the slots for the bolts to change positions , what I kneed to know is... Which way does one enlarge mount holes? I already went with my gut and upper hole towards intake enlarged hole to the right side or toward the head. Bottom is enlarged to the left side facing rear wheel.
Both by about two millimeters.
Basically this should raise the ignition coil relay higher off the ground and towards intake.
So Am I about to blow my engine up?
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Post by 808ministroke on Sept 25, 2019 0:11:02 GMT -5
If I’m correct then standard is 17* before topdeadcenter ?🤷🏻♂️🙈if I remember the timing is recommend to.be something like 26* and then retard at a rpm I will probably never get to. At least on this build......🛠
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Post by 190mech on Sept 25, 2019 3:41:39 GMT -5
You are slotting in the right direction for advance,,be careful though as too much will melt a piston!A timing light is the only way to know your actual initial and high rpm numbers..
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Post by 808ministroke on Sept 25, 2019 6:42:49 GMT -5
Okay thanks for responding your an OG on this site, literally it’s ur initials.... OldGeek lol. I wasn’t planning on going more than a mil or two. That’s inaccurate but if standard is 17 then a millimeter or two somewhere between say 18 - 23 what’s going to be noticed if this were done correctly? Still don’t quite understand how spark and rpm effect each other like in a four stroke( booo). In a Dohc it’s spark s advances with the intake lobes on camshaft like in vtech but how exactly does it work when I take and exhaust durations are static?
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Post by 808ministroke on Sept 27, 2019 22:30:06 GMT -5
Okay I know I’m going to sound all over the place on this build but here me out . I got a brand new polini cp 23 with matching boot for the polini 360 manifold from George himself. I pt it on seemed rich with a 110 mj so I dropped it to a 98mj now I’m gunna try a 105 cuz that seems like it is what it wants. But any way I still feel like it won’t get up to the same revs even when properly jetted now I have used a cp 19 before and it was my favorite carb to this day. The reason I switched was my 28 was being held together by zip ties literally the top was . So I made the switch to avoid the top from repeatedly coming up . Was I wrong in thinking that a 23 round slide will be sufficient to run this bore at the power I was getting from a 28 flat slide?
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Post by 808ministroke on Sept 27, 2019 22:32:53 GMT -5
Oh yah I was seeing rpm at like 11,500 now with the same time of. Run I see 10,500 . Top with 28pwk was 12,000+ now with cp haven’t yet seen 11,000.
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Post by 'O'Verse on Sept 28, 2019 19:21:37 GMT -5
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Post by 808ministroke on Sept 30, 2019 2:46:12 GMT -5
You know overse I saw this page before but looking at it again I see the ignition says 16* I know that’s only for idle though. And just because it says 26hp at13,800 rpm I wonder what sorta hp I was making at 12,000 ? Just changed my carb back and got a fat continental back tire then I shredded my Malosi belt to bad I really thought I was lov8nh that belt too. I guess I’m gunna go for a motoforce Kevlar seeing as they have lasted the longest so far.
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Post by 'O'Verse on Sept 30, 2019 6:20:39 GMT -5
What kind of pipe are you using? That's just saying it supposedly makes the most power at 13,800 rpm. If I remember correctly it's already hitting hard early at 13,200. I'd definitely try to get your rpms up if you can. Take full advantage of this cylinder. It really is a bad ass cylinder.
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Post by pitobread on Sept 30, 2019 15:56:13 GMT -5
You know overse I saw this page before but looking at it again I see the ignition says 16* I know that’s only for idle though. And just because it says 26hp at13,800 rpm I wonder what sorta hp I was making at 12,000 ? Just changed my carb back and got a fat continental back tire then I shredded my Malosi belt to bad I really thought I was lov8nh that belt too. I guess I’m gunna go for a motoforce Kevlar seeing as they have lasted the longest so far. Thats probably 16 degrees no curve like lots of og scooter stuff used to be. Just a flatline cdi. |
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Post by 808ministroke on Sept 30, 2019 17:36:48 GMT -5
I am using a koso 100cc chambered pipe with a different silencer I spoke with the most renound Mina or jog builders on the island whom I got the pipe from and he said that pipe is not limiting the rpms. I can take a picture if you want cuz I have not been able to find it on the web in anyway. I also seemed to have broken yet another belt this time a almost brand new Malossi belt it looks like my variator keeps getting stuck open I’m guessing by opening to far , this is probably due to the removal of my starter clutch I’m guessing? This has happened with both stock and polini high speed variator I’m going to add a washer before the variator which hopefully will solve this, also looking at my koso delta clutch I realize that t has the ability to add weights and adjust preload can anyone explain how to do this and how it works thanks.
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Post by 808ministroke on Sept 30, 2019 17:38:36 GMT -5
Oh and I have a technigas next r I think would this be better I am thinking no silly beacause the koso has a bigger header and bigger cone also better quality made of more peices.
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Post by 808ministroke on Sept 30, 2019 20:12:56 GMT -5
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Post by 808ministroke on Sept 30, 2019 20:19:22 GMT -5
Found out that the variator did not in fact get stuck open somehow the belt melted I’m guessing it was temperature related I was using a modified 107 mm stock clutch with yellow clutch and can’t found out that the variator did not in fact get stuck open somehow the belt melted I’m guessing it was temperature related I was using a modified 107 mm stock clutch with yellow clutch and Contra 15000 I believe everything besides the belt looks fine there is a small amount of case venting but these Rexie cases come airtight there’s only a few slots between the boats in the front cut just on the lips so at more than half inch wide with one more slot on the bottom back like 1/2 inch by3 inch . I’m planning on cutting the case cover in half like a lot of people do on though dios no rear support bearings so only really need the front half for holding the kick starter snug, what is avoiding this because you get slippage when it rains but I really don’t wanna ride when it rains anyways picture above is of the koso delta clutch It’s interesting I never thought about pre-load and clutch weights before but this clutch has I removed one weight as shown from rear and tightened the springs down don’t know if it will engage faster or later now thinking later but I’ll just have fun with it completely new to me.
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Post by repherence2 on Oct 1, 2019 20:14:50 GMT -5
Okay I know I’m going to sound all over the place on this build but here me out . I got a brand new polini cp 23 with matching boot for the polini 360 manifold from George himself. I pt it on seemed rich with a 110 mj so I dropped it to a 98mj now I’m gunna try a 105 cuz that seems like it is what it wants. But any way I still feel like it won’t get up to the same revs even when properly jetted now I have used a cp 19 before and it was my favorite carb to this day. The reason I switched was my 28 was being held together by zip ties literally the top was . So I made the switch to avoid the top from repeatedly coming up . Was I wrong in thinking that a 23 round slide will be sufficient to run this bore at the power I was getting from a 28 flat slide? how do you contact George? did he get a new shop? as far as polini round slide CP carbs, my 24 CP was a nice all around carb. very efficient on gas because you end up using smaller main jets. however, I prefer the top end performance of the 28 flat slide OKO carb. I couldn't get the CP 24 to perform as well as the OKO at wide open throttle. I haven't run my 24 polini since I switched to the 28 OKO. |
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