 Carbs or Ing Sys, Intermittent miss-fire |
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| Razorbobsr |
 Mar 14 2011, 11:26 AM
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#1
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Member  Group: Members Posts: 282 Joined: 6-June 10 From: Terre Haute Ind Member No.: 11,813 Region Association: Upper MidWest  |
As you guys said, cleaned jets in carb, replaced plugs and wires, smooth at 900 rpms in drive, smooth at 2/3/4 K rpms in driveway, pulls hard W/O, sill I have a miss-fire that I can feel coming and going[surging, sound of engine when all 4 hit at proper times] Could I have a coil prob? Or where off to next?? 2L/carbs/5K sense rebuild/1500 miles driven to get this car home..... NKG plugs but do have Bosh plugs waiting...... Getting warmer outside, Help! Bob PS, British car friends are starting to make fun of the 914........... AND ME
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| Borderline |
Mar 15 2011, 10:24 AM
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#2
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Senior Member Group: Members Posts: 720 Joined: 8-February 05 From: San Juan Bautista, CA Member No.: 3,577 Region Association: Northern California |
How did you synch the carbs/linkage? I have found that spending additional time with the linkage can make all the difference. I synch the carbs twice. The first time is at idle with one of the links removed. The second time I synch the carbs with both links installed. I tighten the adjuster nut on the throttle cable to bring the engine speed up to 1500 - 2000 rpm. I then use the unisyn to check flow on both carbs and adjust the links to balance it again. When this is done properly the engine smooths out and runs great! You spend a lot of time at partial throttle when you're cruising on the street and hwy, having the carbs synched there really helps. FWIW (IMG:style_emoticons/default/biggrin.gif)
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| Razorbobsr |
Mar 15 2011, 11:36 AM
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#3
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Member Group: Members Posts: 282 Joined: 6-June 10 From: Terre Haute Ind Member No.: 11,813 Region Association: Upper MidWest |
QUOTE(Borderline @ Mar 15 2011, 12:24 PM)  How did you synch the carbs/linkage? I have found that spending additional time with the linkage can make all the difference. I synch the carbs twice. The first time is at idle with one of the links removed. The second time I synch the carbs with both links installed. I tighten the adjuster nut on the throttle cable to bring the engine speed up to 1500 - 2000 rpm. I then use the unisyn to check flow on both carbs and adjust the links to balance it again. When this is done properly the engine smooths out and runs great! You spend a lot of time at partial throttle when you're cruising on the street and hwy, having the carbs synched there really helps. FWIW (IMG:style_emoticons/default/biggrin.gif) |
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Posts in this topic
Razorbobsr Carbs or Ing Sys Mar 14 2011, 11:26 AM
Vacca Rabite Where in the rpm range is it missing? Is it missi... Mar 14 2011, 04:10 PM
Razorbobsr
Where in the rpm range is it missing? Is it miss... Mar 14 2011, 04:58 PM Vacca Rabite Can you get it to miss sitting in your driveway? ... Mar 14 2011, 07:31 PM Razorbobsr
Can you get it to miss sitting in your driveway? ... Mar 14 2011, 09:04 PM Vacca Rabite Coils usually either work or don't work. I... Mar 15 2011, 08:04 AM Razorbobsr
Coils usually either work or don't work. I... Mar 15 2011, 10:34 AM Razorbobsr
Coils usually either work or don't work. I... Mar 16 2011, 08:57 AM indianmort if the misfire develops after the car has warmed u... Mar 15 2011, 08:23 AM Razorbobsr
if the misfire develops after the car has warmed ... Mar 15 2011, 11:39 AM McMark 009 Dizzy is garbage. As Dave Darling loves to sa... Mar 15 2011, 11:42 AM Razorbobsr
009 Dizzy is garbage. As Dave Darling loves to s... Mar 15 2011, 01:37 PM McMark Normally I retype all this info. But there is so ... Mar 15 2011, 02:33 PM Razorbobsr
Normally I retype all this info. But there is so... Mar 16 2011, 06:18 AM Vacca Rabite Always adjust carbs when they are fully warmed up.... Mar 16 2011, 09:30 AM Razorbobsr
Always adjust carbs when they are fully warmed up... Mar 16 2011, 02:42 PM McMark
Zach, you're confusing two screws here. The ... Mar 16 2011, 11:24 AM Vacca Rabite
Zach, you're confusing two screws here. The... Mar 16 2011, 07:34 PM |
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