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h0nk
 Post subject: whats your idle speed?
PostPosted: Sat Sep 03, 2005 7:53 pm 
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Whats everyone set their idle to?

I've got twin HS2s with around a 1100cc engine... If I set the idle any lower then about 1100~1200rpm, after accelerating then letting it idle the engine will slow down then stall. So currently it's set to idle at around 1200rpm.. The book says it should be around 800-1000 anyone know whats wrong?
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NAV
PostPosted: Sat Sep 03, 2005 7:57 pm 
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h0nk wrote:
Whats everyone set their idle to?

I've got twin HS2s with around a 1100cc engine... If I set the idle any lower then about 1100~1200rpm, after accelerating then letting it idle the engine will slow down then stall. So currently it's set to idle at around 1200rpm.. The book says it should be around 800-1000 anyone know whats wrong?


NAV has a very similar issue atm. Everything was all fine till i put on the lcb extractors and 1"3/4 exhaust. Now my mixtures are all over the shop.
And yes it is a ritcher needle i just need to get him onto a dyno to get it sorted 100%

Would auto tranny fluid be thicker than sewing machine oil?
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J_A_M
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PostPosted: Sat Sep 03, 2005 8:15 pm 
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1115cc, RE13 cam, twin HS2's = 1100 - 1200rpm idle. Anything below that and it's a dog!
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Mini Mad
 Post subject:
PostPosted: Sat Sep 03, 2005 8:30 pm 
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Yeap...similar specs to anton..~1200rpm..same with most i've seen, nothing to worry about.

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Spaceboy
 Post subject:
PostPosted: Sat Sep 03, 2005 10:49 pm 
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900rpm, with 731 cam, smooth as

it has to be less than 1000rpm or it drives me nuts.

your problem might include a sticky carby piston/s
or maybe fuel surge?
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Spaceboy
 Post subject:
PostPosted: Sat Sep 03, 2005 10:51 pm 
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could be too rich aswell, which would make the idle lumpy
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Maxi23
 Post subject:
PostPosted: Sat Sep 03, 2005 11:42 pm 
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Location: Central Coast, NSW.
1098cc
1 1/2" SU
Extractors

Idle speed is now sitting comfortably at 1000 to 1100.

sometimes drops to 600 - 800...that sounds tough :D

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drmini in aust
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PostPosted: Sun Sep 04, 2005 6:44 am 
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Both Barney and Ha-Ha idle at 1100-1200. Barney (twin HS4s) sounds cammier than Ha-Ha (45 Dellorto) although Ha-Ha has a bigger cam.... :shock:

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gafmo
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PostPosted: Sun Sep 04, 2005 6:50 am 
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yep Morris sits around the 1000-1100 also
1152 Hif44 re13 cams perry extractors 202 head

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Lillee
 Post subject:
PostPosted: Sun Sep 04, 2005 3:30 pm 
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Lillee idles at 1100rpm, 1000 and is still ok but 1100 is just nice (1152cc 266 cam, dellorto45)

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Namibian CAMEL
 Post subject:
PostPosted: Sun Sep 04, 2005 3:56 pm 
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whats an idle :? :(

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Maxi23
 Post subject:
PostPosted: Sun Sep 04, 2005 4:00 pm 
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RPM of ure engine when its sitting there when running.

no foot on accelerator etc etc

Just sitting there with engine idling

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Zizzle
 Post subject:
PostPosted: Sun Sep 04, 2005 4:17 pm 
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Don't you want a high idle to help (splash) lubricate the cam, or am I dreaming...?

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drmini in aust
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PostPosted: Sun Sep 04, 2005 5:03 pm 
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Zizzle wrote:
Don't you want a high idle to help (splash) lubricate the cam, or am I dreaming...?

That's one reason I idle mine at 1000+. :wink:

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DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:
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CPOCSM
 Post subject:
PostPosted: Sun Sep 04, 2005 9:06 pm 
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Location: SE QLD
1200-1300rpm here. Just off topic for one second but still kinda on the idle thing.

Arrived at Russell(rustle!!)Offices Thursday morning and Henry decided to chuck a hissy fit and wouldnt idle. Backed into my usual park and popped the bonnet. So much for the "learned" advice saying dellorto's wouldnt ice up - no matter how cold it gets - the dellorto was nearly all white!! Covered in a fine powdering of ice so the innards must have been absolutely caked in it. Wouldnt idle at all and when the ice melted it would only idle at (just)5-600rpm.

After a day in the sunny Canberra sun it was good as gold...sorry for the hijack...

Hooroo

Rob Forsyth
Miniot!!

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