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Post by mk2rox on May 2, 2022 13:03:23 GMT -5
I need ideas for my build, current setup: Airsal 70 Dellorto 21 I had a friend port my casings etc: smoothed block (grinded for airsal, for better flow etc Pro replica Stock clutch with +2000rpm clutch springs 6,2g rollers and +22 contra better flow in reed valve (sorry for bad english) Malossi multivar ported stock intake manifold (22mm) What could i do to enhance speed. Also you can see my 500km droven piston  , my head was leaking but not anymore, i bought new piston ring.         |
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messenger
Scoot Enthusiast
Posts: 188
Location: Coventry, u.k.
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Post by messenger on May 2, 2022 15:53:40 GMT -5
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Post by repherence2 on May 2, 2022 22:28:04 GMT -5
are you running the air shroud on your engine? i can see the fan in your picture, but i also see the cooling fins on the bore and head too.
did your friend remove the support leg when he "ported" the intake track on the engine block? from the picture, it looks like he removed it. i have read that removing the support can lead to problems, there is a reason it was cast there in the first place. it is a good place for a leak to develop when the engine heats up.
that engine you have there, if only you knew it's real potential. what you have there is "gold" for us in hawaii in the scooter/moped realm. there are many guys here running the streets with fast engines like the one you have. so many different set ups for that engine, stock stroke, mini stroker, and stroker kits in excess of 120cc. i will tell you this much, none of the fast guys use a stock intake manifold. most of the fast guys run 24mm - 28mm pwk (OKO, Polini, Stage 6)carburetors too.
how fast do you really want to go? no tags/plates and no brake lights or turn signals? seems very sketchy to me.
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Post by ghostaroni on May 2, 2022 23:28:54 GMT -5
That case "porting" needs at least two hours with a rotary sander.  You really should only case port when everything else is maxed. More flow isnt always a good thing. |
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Post by Lucass2T on May 3, 2022 1:25:25 GMT -5
Looks like a total hack job to be honest.
All the parts are dirty too, not the best situation to work that way.
Maybe if you throw it off a cliff you can increase speed?
No just kidding.
You need to increase revs to get more speed. Or put taller gears in there.
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Post by mk2rox on May 4, 2022 4:46:07 GMT -5
Looks like a total hack job to be honest. All the parts are dirty too, not the best situation to work that way. Maybe if you throw it off a cliff you can increase speed? No just kidding. You need to increase revs to get more speed. Or put taller gears in there.  Yes i know. the parts are much cleaner now. |
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Post by mk2rox on May 4, 2022 4:49:17 GMT -5
are you running the air shroud on your engine? i can see the fan in your picture, but i also see the cooling fins on the bore and head too. did your friend remove the support leg when he "ported" the intake track on the engine block? from the picture, it looks like he removed it. i have read that removing the support can lead to problems, there is a reason it was cast there in the first place. it is a good place for a leak to develop when the engine heats up. that engine you have there, if only you knew it's real potential. what you have there is "gold" for us in hawaii in the scooter/moped realm. there are many guys here running the streets with fast engines like the one you have. so many different set ups for that engine, stock stroke, mini stroker, and stroker kits in excess of 120cc. i will tell you this much, none of the fast guys use a stock intake manifold. most of the fast guys run 24mm - 28mm pwk (OKO, Polini, Stage 6)carburetors too. how fast do you really want to go? no tags/plates and no brake lights or turn signals? seems very sketchy to me. Yes i am running it. Im not sure if it's for "support" since its just in front of one reed. Im looking forward to buying 24pwk and s6 intake manifold full set with the reed cage. You were talking about the potential of my engine, I didnt know, i just thought it's one of the worst since the lack of parts and lack of "high" end cylinders etc. |
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Post by mk2rox on May 4, 2022 4:52:31 GMT -5
are you running the air shroud on your engine? i can see the fan in your picture, but i also see the cooling fins on the bore and head too. did your friend remove the support leg when he "ported" the intake track on the engine block? from the picture, it looks like he removed it. i have read that removing the support can lead to problems, there is a reason it was cast there in the first place. it is a good place for a leak to develop when the engine heats up. that engine you have there, if only you knew it's real potential. what you have there is "gold" for us in hawaii in the scooter/moped realm. there are many guys here running the streets with fast engines like the one you have. so many different set ups for that engine, stock stroke, mini stroker, and stroker kits in excess of 120cc. i will tell you this much, none of the fast guys use a stock intake manifold. most of the fast guys run 24mm - 28mm pwk (OKO, Polini, Stage 6)carburetors too. how fast do you really want to go? no tags/plates and no brake lights or turn signals? seems very sketchy to me. I like stunting so top speed is not everything but that thing tops at like 80kmh max? And yes no plate but i do have front and rear lights. im not that stupid |
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Post by mk2rox on May 5, 2022 7:43:04 GMT -5
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Post by repherence2 on May 5, 2022 21:41:05 GMT -5
when you say stunting, as in wheelies? if that is the case, get very stiff clutch springs. some people here on Oahu write about "Polini blues". or get an adjustable clutch so that you can tension the spring to suit your stunting style. i rode a honda elite that had to rev up pretty high before the clutch engaged, i think my friend tuned it like that so that he could make it wheelie easier. i think it had Polini blues. but he had a setup that was around 90cc's on his honda elite.
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Post by mk2rox on May 8, 2022 13:35:01 GMT -5
when you say stunting, as in wheelies? if that is the case, get very stiff clutch springs. some people here on Oahu write about "Polini blues". or get an adjustable clutch so that you can tension the spring to suit your stunting style. i rode a honda elite that had to rev up pretty high before the clutch engaged, i think my friend tuned it like that so that he could make it wheelie easier. i think it had Polini blues. but he had a setup that was around 90cc's on his honda elite. Why does my moped only go 66kmh? tops at 66 and it revs fast but it just makes so much noise but doesnt move? heavier rollers? i have currntly 6,25g |
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Post by Lucass2T on May 8, 2022 16:05:02 GMT -5
when you say stunting, as in wheelies? if that is the case, get very stiff clutch springs. some people here on Oahu write about "Polini blues". or get an adjustable clutch so that you can tension the spring to suit your stunting style. i rode a honda elite that had to rev up pretty high before the clutch engaged, i think my friend tuned it like that so that he could make it wheelie easier. i think it had Polini blues. but he had a setup that was around 90cc's on his honda elite. ...it revs fast but it just makes so much noise... dunno really what your problem is. Revs fast, lots of noise🤷 |
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Post by mk2rox on May 9, 2022 13:32:34 GMT -5
...it revs fast but it just makes so much noise... dunno really what your problem is. Revs fast, lots of noise🤷 Doesnt go fast just revs |
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Post by Lucass2T on May 10, 2022 4:27:27 GMT -5
dunno really what your problem is. Revs fast, lots of noise🤷 Doesnt go fast just revs Buy 7,5gr rollers and put those in. |
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Post by Zino on May 10, 2022 6:24:02 GMT -5
If it Revs fast with lots of noise .
No Speed
What is the Last thing you changed?
You stunt so check to see if you knocked off a exhaust bolt causing you to be loud and Lean.
When the scooter is running with a wet rag plug the end of the exhaust.
If it kills quick you are good if she keeps running you have a exhaust leak check by the cylinder first and then by silencer .
I use a spray bottle with soapy water to find the leak.
Your weights seem like they should be heavy enough with that set up
I would crack open the cvt and have it run rev it up and visually check pulleys .
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Your rear pulley could be binding not up shifting or your variator could be binding not up shifting.
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, my head was leaking but not anymore, i bought new piston ring. 
Yes i know. the parts are much cleaner now. 