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> How do you start your /6 with carbs, Now with video
PanelBilly
post Jul 2 2020, 03:48 PM
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I turn on the key and pump the fuel a few times. Repeat MANY times. I’ve tried just holding the fuel open about 50% but that normally only gives me a backfire. Once it starts I need to give it a little extra fuel for 30 seconds or so and in runs fine. Normally the first time I pull out in traffic I need to pump a bit extra. After that it’s great. Running PMOs
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Rand
post Jul 2 2020, 07:04 PM
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QUOTE(PanelBilly @ Jul 2 2020, 01:48 PM) *

I turn on the key and pump the fuel a few times. Repeat MANY times. I’ve tried just holding the fuel open about 50% but that normally only gives me a backfire. Once it starts I need to give it a little extra fuel for 30 seconds or so and in runs fine. Normally the first time I pull out in traffic I need to pump a bit extra. After that it’s great. Running PMOs

NO WAY you should have to do that. Either your technique is wrong or the tuning is off. Hoping you get answers.

I don't know your choke setup, but it should be choked, no pumping, no rigamarole nonsense. Just start and run until it's time to take the choke off. Messing with the pedal should not be so necessary. In fact that's probably when you get the backfire.

You once said you could build a RUF level build. Now's your chance to conquer. You should be able to start it with no pedals touched.

Wouldn't FI be nice about now? (IMG:style_emoticons/default/tongue.gif)
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porschetub
post Jul 2 2020, 08:46 PM
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QUOTE(Rand @ Jul 3 2020, 01:04 PM) *

QUOTE(PanelBilly @ Jul 2 2020, 01:48 PM) *

I turn on the key and pump the fuel a few times. Repeat MANY times. I’ve tried just holding the fuel open about 50% but that normally only gives me a backfire. Once it starts I need to give it a little extra fuel for 30 seconds or so and in runs fine. Normally the first time I pull out in traffic I need to pump a bit extra. After that it’s great. Running PMOs

NO WAY you should have to do that. Either your technique is wrong or the tuning is off. Hoping you get answers.

I don't know your choke setup, but it should be choked, no pumping, no rigamarole nonsense. Just start and run until it's time to take the choke off. Messing with the pedal should not be so necessary. In fact that's probably when you get the backfire.

You once said you could build a RUF level build. Now's your chance to conquer. You should be able to start it with no pedals touched.

Wouldn't FI be nice about now? (IMG:style_emoticons/default/tongue.gif)


Another flaky answer Rand do you own a 911 powered car or a T4 on carbs ? no chokes on the 6 and even the 4 on carbs as most remove them.
Early Porsche cars (356 ,912 ) had no mauual chokes as the good doctor deemed them as quote " parts you don't need "...end of story.
I have 2 methods ;
when not used for a while,5 pumps on the pedal and around half hand throttle,
when used recently less pumps but no hand throttle.
Back firing is a lean condition on starting caused by undersize idle jets or bad setup (vacuum),if all is good go a touch more rich on the idles,for example I'am running #52 but #50 is better but for ease of starting they work and no black plugs.
The issue is the fuel bowls are vented so the fuel evaporates after sitting,I generally run "key on" for a short time for the bowls to fill again.
Good luck.
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Posts in this topic
PanelBilly   How do you start your /6 with carbs   Jul 2 2020, 03:48 PM
siverson   Half throttle, turn the key, fires in 1-2 turns. ...   Jul 2 2020, 03:51 PM
roblav1   Two or three full throttle down and up. Turn key,...   Jul 2 2020, 05:11 PM
Mark Henry   Two or three full throttle down and up. Turn key...   Jul 3 2020, 07:51 AM
Mike Fitton   Pull choke fully up on a cold engine, then 2 pumps...   Jul 2 2020, 06:39 PM
fixer34   I (sadly) only get mine out a couple times a year,...   Jul 2 2020, 06:58 PM
Rand   I turn on the key and pump the fuel a few times. ...   Jul 2 2020, 07:04 PM
porschetub   I turn on the key and pump the fuel a few times....   Jul 2 2020, 08:46 PM
roblav1   There's no choke on Weber 40IDA. The 66/67 91...   Jul 2 2020, 07:18 PM
Rand   If that's the same as PMOs then Billy is a per...   Jul 2 2020, 07:22 PM
roblav1   PMOs don't have choles either. Neither do all...   Jul 2 2020, 07:28 PM
porschetub   PMOs don't have choles either. Neither do al...   Jul 2 2020, 08:51 PM
914Toy   Cold start: Turn key on for 15 seconds - fills the...   Jul 2 2020, 07:32 PM
PanelBilly   qtMXHtJxZ1g Two full pumps and then about 25% dow...   Jul 2 2020, 08:48 PM
rgalla9146   No Porsche with carbs ever had chokes, they had a ...   Jul 3 2020, 06:11 AM
Root_Werks   No Porsche with carbs ever had chokes, they had a...   Jul 3 2020, 10:24 AM
rgalla9146   No Porsche with carbs ever had chokes, they had ...   Jul 3 2020, 06:52 PM
porschetub   [quote name='Root_Werks' post='2830597' date='Jul...   Jul 3 2020, 10:58 PM
gereed75   Hate to sound like a broken record, but there are ...   Jul 3 2020, 06:34 AM
roblav1   The only Porsches I ever had (about 20 plus) that ...   Jul 3 2020, 07:38 AM
914forme   Factory 914-6s have a hand throttle, lots of kits ...   Jul 3 2020, 07:46 AM
campbellcj   This is one reason I always thought it'd be su...   Jul 3 2020, 08:06 AM
Rand   Great discussion. Thanks for the schooling.   Jul 3 2020, 08:21 AM
Mark Henry   Just got back from a three hours tour, good 2 hour...   Jul 3 2020, 06:34 PM
RickS   With my Webber’s, turn key to accessory and keep...   Jul 3 2020, 11:27 PM


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