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Post by yellabelly on Jun 8, 2019 12:22:21 GMT
Hello Gang :- as the title says, i’m having an engine put together for an ETS project with the above spec (plus polini Reed & the pipe will be either polini or ETS standard style replica) The 25 Dell is an unkown. I have stripped, ultrasonic cleaned, blown through & reassembled, but would just like a reasonable starting point on jetting, so I have a fighting chance of getting it running. Also pro-cup kit, what grade oil, what ratio & what running in mileage ? Thankyou in anticipation of your help...
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Post by tzsteve on Jun 8, 2019 14:00:50 GMT
i have a hunch anything like a standard pipe would really choke the engine
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Post by Juan on Jun 8, 2019 17:10:47 GMT
I always use 2% oil unless it specifically says you need more.
I have a barely used remade ETS system available but I'd bare in mind that NickJ on here felt a SIP Performance banana was holding back his M1 which the Procup is based on or blatantly ripping off depending on which angle you're viewing it from.
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Post by tzsteve on Jun 8, 2019 17:57:51 GMT
only 2%
that seems very little
id be tempted to go 4% with a really good oil
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Post by henri on Jun 9, 2019 7:24:03 GMT
as its a quatt clone ,an i was told quatt say 4% ,i'm with TZ on the oil thing . an with juan on the exhaust ,a pm40 is the minimum to let the kit work ,ive set mine up with a zirri pipe .only run it in the stand so far an with a flatslide carb ,but on a 25mm round slide i'd start with a 50 pilot ,d22 needle ,aq266 atomiser an around a 110 main . H
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Post by yellabelly on Jun 9, 2019 7:34:54 GMT
Cheers Men !! Useful info, much appreciated....
Exhaust choices then ? It is a really nice restored scooter, so don’t want to be cutting the frame....
I have a polini, which I figured I would use it during running in period& then go window shopping after that.
So we are debating between 2 & 4% mix ?
What mileage for running in ?
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Post by Juan on Jun 9, 2019 8:34:25 GMT
I'd be happy enough to use 4% if that's what Quattrini recommend.
Running in, well it's alloy / nikasil so you're only needing to bed in the rings. 50 miles and / or a few decent heat cycles will be plenty as long as you're happy with the jetting.
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Post by yellabelly on Jun 9, 2019 8:53:33 GMT
I'd be happy enough to use 4% if that's what Quattrini recommend. Running in, well it's alloy / nikasil so you're only needing to bed in the rings. 50 miles and / or a few decent heat cycles will be plenty as long as you're happy with the jetting. Hey Juan....Can you PM me about your ETS pipe please ? Tried to message you, but “send message” wouldn’t recognise your username |
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Post by nickj on Jun 9, 2019 11:43:18 GMT
Yep. My M1 ran much better with the Franz than the Sip. Perhaps if I’d spent more time jetting it I might have got there but probably needed a smaller carb too so I went back to the Franz. Do think the stock ETs pipe will do it either
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Post by nickj on Jun 9, 2019 11:45:42 GMT
I would try a down and forward type. But not sure what’s out there at the mo
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Post by yellabelly on Jun 9, 2019 14:05:29 GMT
I would try a down and forward type. But not sure what’s out there at the mo Had seen the simonini ones on eBay & SIP, but all confused with the variants, as some of them were applicable for reverse barrel set ups....but yes, I had considered one of those.. |
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Post by nickj on Jun 10, 2019 22:37:55 GMT
Yep. My M1 ran much better with the Franz than the Sip. Perhaps if I’d spent more time jetting it I might have got there but probably needed a smaller carb too so I went back to the Franz. Do think the stock ETs pipe will do it either Oops....meant to type DON’T think the stock ETS pipe will do it either.. |
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Post by dazzz on Jun 12, 2019 8:43:04 GMT
My carb is a 25 pwk power jet. and it’s on the second clip and a 110 main. Think I’ve got a 50 pilot jet in. But mine is ported and manifold matched sealing pad opened up and a Franz
LTH make a nice pipe that wound suit that think it’s a V2.
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Post by tzsteve on Jun 12, 2019 14:45:48 GMT
i like the franz pipe pricey as they are,
but i find that they seem to have a little weak spot just as they come on to the power
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Post by jonnysnatchsniffer on Jun 14, 2019 12:17:04 GMT
4% lol is it 1970 again, the people that make decent 2 stroke oil worked with all the gp teams when formulating the oil, these machines are running at a far higher bmep than you would ever get on 99% of road motors, point being is that you are robbing yourself needlessly of at least 2% of fuel which is what makes it run, im not saying run at 1% but 2 on a rotary is more than enough and maybe 3 if you are running a reed with boysen ports
but 4 really ?
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