150 Most Recent Posts

Thread AuthorPostersPost AuthorForumThread/Post Link
Voo Doo Blue4hogmemberisoldNew Member Introduct...New Pacific North Wet member
Trampas4Rogue1Harley Tri GlideWas at my dealer today
skisnow8061skisnow806Champion Trike2002 goldwing w champion conversion...
Voo Doo Blue4trike ladyNew Member Introduct...New Pacific North Wet member
Oldman-TriGlide4jmhenrieHarley Tri GlideOpen or Closed Trailer for 2028 Tri...
Voo Doo Blue4rhino 2New Member Introduct...New Pacific North Wet member
Voo Doo Blue4Voo Doo BlueNew Member Introduct...New Pacific North Wet member
Mykneesbehurtin10rhino 2Harley Tri GlideTri Glide Reverse Motor
Geep20207trike ladyNew Member Introduct...New Member
Aging Gracefully5NotgrownupHarley Freewheeler /...switching Tri-Glide for Road Glide ...
Grandpot5GrandpotHonda TrikesFront tire?
Geep20207Marc HNew Member Introduct...New Member
Mykneesbehurtin1019jmanHarley Tri GlideTri Glide Reverse Motor
Geep20207Uncle FesterNew Member Introduct...New Member
Geep20207ZammyNew Member Introduct...New Member
Geep20207rhino 2New Member Introduct...New Member
Aging Gracefully5seniorsgtHarley Freewheeler /...switching Tri-Glide for Road Glide ...
Grandpot5NotgrownupHonda TrikesFront tire?
Grandpot53W-loneriderHonda TrikesFront tire?
Geep20207woodyNew Member Introduct...New Member
Trampas4PanheadSteveHarley Tri GlideWas at my dealer today
Trampas4SeaweedHarley Tri GlideWas at my dealer today
Grandpot5cycle7447Honda TrikesFront tire?
Grandpot5tourmanHonda TrikesFront tire?
ultrafxr5TrampasHarley Tri GlideFinished at last . . . well at leas...
Trampas4TrampasHarley Tri GlideWas at my dealer today
Grandpot5GrandpotHonda TrikesFront tire?
Geep20207Geep2020New Member Introduct...New Member
Oldman-TriGlide4NotgrownupHarley Tri GlideOpen or Closed Trailer for 2028 Tri...
Oldman-TriGlide4ultrafxrHarley Tri GlideOpen or Closed Trailer for 2028 Tri...
Noodles1073BrokenBackJackHarley Freewheeler /...Very Nice Gloves
Oldman-TriGlide4Oldman-TriGlideHarley Tri GlideOpen or Closed Trailer for 2028 Tri...
RedOregon13Papa ZookHarley Tri GlideUpgrades on '24 Triglide?
Bama boy4DragonStallion TrikesStallion fuel pump
Bama boy4DragonStallion TrikesStallion fuel pump
Bama boy4DragonStallion TrikesStallion fuel pump
Papa Zook239SullyNew Member Introduct...What Made You Join TrikeTalk Forum?
RedOregon13RedOregonHarley Tri GlideUpgrades on '24 Triglide?
RedOregon13NotgrownupHarley Tri GlideUpgrades on '24 Triglide?
phillipschuckann7NotgrownupHonda TrikesWho made my trike?
Papa Zook239ol' schoolNew Member Introduct...What Made You Join TrikeTalk Forum?
PKLGW2pawsHonda Trikes2007 gl1800 motor trike
ultrafxr5Papa ZookHarley Tri GlideFinished at last . . . well at leas...
Noodles1073NotgrownupHarley Freewheeler /...Very Nice Gloves
ultrafxr5NotgrownupHarley Tri GlideFinished at last . . . well at leas...
Papa Zook239rhino 2New Member Introduct...What Made You Join TrikeTalk Forum?
PKLGW2PKLGWHonda Trikes2007 gl1800 motor trike
Papa Zook239skisnow806New Member Introduct...What Made You Join TrikeTalk Forum?
Speedy Pete12JTJerseyNew Member Introduct...New member from Alberta, Canada
Just BOB2Just BOBStallion Trikesinfo
ultrafxr5Longbeard71Harley Tri GlideFinished at last . . . well at leas...
ultrafxr5ultrafxrHarley Tri GlideFinished at last . . . well at leas...
ultrafxr5TrampasHarley Tri GlideFinished at last . . . well at leas...
ultrafxr5ultrafxrHarley Tri GlideFinished at last . . . well at leas...
Noodles1073Noodles107Harley Freewheeler /...Very Nice Gloves
Speedy Pete12cycle7447New Member Introduct...New member from Alberta, Canada
RISal24!12cycle7447New Member Introduct...New member..new to trikes
phillipschuckann7Papa ZookHonda TrikesWho made my trike?
RISal24!12ol' schoolNew Member Introduct...New member..new to trikes
Bama boy4Grey_Ghost_27Stallion TrikesStallion fuel pump
phillipschuckann7trike ladyHonda TrikesWho made my trike?
RISal24!12trike ladyNew Member Introduct...New member..new to trikes
Speedy Pete12RustyBNew Member Introduct...New member from Alberta, Canada
RISal24!12Marc HNew Member Introduct...New member..new to trikes
Bowie11RustyBNew Member Introduct...New to trike, old time rider
RISal24!12RustyBNew Member Introduct...New member..new to trikes
RISal24!12rhino 2New Member Introduct...New member..new to trikes
RISal24!12hardwickbvNew Member Introduct...New member..new to trikes
Bowie11hardwickbvNew Member Introduct...New to trike, old time rider
RISal24!12Uncle FesterNew Member Introduct...New member..new to trikes
Bowie11ZammyNew Member Introduct...New to trike, old time rider
RISal24!12SullyNew Member Introduct...New member..new to trikes
RISal24!12ZammyNew Member Introduct...New member..new to trikes
Chief80138520fdHarley Tri GlideHow many miles on your Triglide?
RISal24!12GorillaNew Member Introduct...New member..new to trikes
RISal24!12RISal24!New Member Introduct...New member..new to trikes
woody19woodyHonda Trikes2019 Goldwing CSC
DK Custom Products362NotgrownupHarley Tri GlideWhat did you do to Your Tri-Glide T...
Bouncer10NotgrownupHarley Tri GlideDrive Belt Replacement Time
Bouncer10BouncerHarley Tri GlideDrive Belt Replacement Time
Bouncer10BouncerHarley Tri GlideDrive Belt Replacement Time
phillipschuckann7GorillaHonda TrikesWho made my trike?
rjd637brianlHonda Trikes1989 Honda Goldwing trike opinions
DeathBySnuSnu19GorillaVW Powered TrikesVolkswagen Kit Cars
DK Custom Products362520fdHarley Tri GlideWhat did you do to Your Tri-Glide T...
SHARKDIVER4DK Custom ProductsGeneral Harley Chatsuper shox
phillipschuckann7trike ladyHonda TrikesWho made my trike?
phillipschuckann7ol' schoolHonda TrikesWho made my trike?
phillipschuckann7rhino 2Honda TrikesWho made my trike?
phillipschuckann7phillipschuckannHonda TrikesWho made my trike?
Bowie11Uncle FesterNew Member Introduct...New to trike, old time rider
RedOregon13RedOregonHarley Tri GlideUpgrades on '24 Triglide?
DeathBySnuSnu19DeathBySnuSnuVW Powered TrikesVolkswagen Kit Cars
Bowie11woodyNew Member Introduct...New to trike, old time rider
Just BOB2GorillaStallion Trikesinfo
SHARKDIVER4WindyOneGeneral Harley Chatsuper shox
Bouncer10GorillaHarley Tri GlideDrive Belt Replacement Time
Just BOB2Just BOBStallion Trikesinfo
Chief80138CagmoHarley Tri GlideHow many miles on your Triglide?
PopPop13consitterNew Member Introduct...New Member
TxHarleyRider2Papa ZookHarley Trike Convers...Need help bad with conversion.
PopPop13Pegasus1300New Member Introduct...New Member
Bouncer10NotgrownupHarley Tri GlideDrive Belt Replacement Time
PopPop13ol' schoolNew Member Introduct...New Member
Bowie11ol' schoolNew Member Introduct...New to trike, old time rider
Chief80138DOKKHarley Tri GlideHow many miles on your Triglide?
Bouncer10BouncerHarley Tri GlideDrive Belt Replacement Time
Bowie11trike ladyNew Member Introduct...New to trike, old time rider
Bowie11GorillaNew Member Introduct...New to trike, old time rider
Bowie11rhino 2New Member Introduct...New to trike, old time rider
Bowie11Marc HNew Member Introduct...New to trike, old time rider
SaltBushBill11Marc HNew Member Introduct...New member
Bowie11BowieNew Member Introduct...New to trike, old time rider
Rick Sinacore9RawhidekenHarley Tri GlideTour pack reinforcement
SaltBushBill11Uncle FesterNew Member Introduct...New member
Burnerboy3tommyv333Harley Trike Convers...Hey Bozo (Andrew)
Old Aviator5Old AviatorHonda TrikesGreasing a Motortrike Coupe SA rear...
Old Aviator5Old AviatorHonda TrikesGreasing a Motortrike Coupe SA rear...
Noodles1073JTJerseyHarley Freewheeler /...Tobacco Fade
Noodles1073trike ladyHarley Freewheeler /...Tobacco Fade
Old Aviator5Phu CatHonda TrikesGreasing a Motortrike Coupe SA rear...
SaltBushBill11SullyNew Member Introduct...New member
ronc44242Papa ZookHarley Tri Glidequestion
TxHarleyRider2TxHarleyRiderHarley Trike Convers...Need help bad with conversion.
Chappy KC5StrelnikovFrankensteinFrankenstein Kit
jerry1@iw.net4StrelnikovFrankensteinFrankenstein owners
TxHarleyRider2Papa ZookHarley Trike Convers...Need help bad with conversion.
Skavoola14SkavoolaNew Member Introduct...New to Trike Talk
Old Aviator5GoldWingrGregHonda TrikesGreasing a Motortrike Coupe SA rear...
El Lobo10El LoboHarley Tri GlideBeen away for a while
SaltBushBill11GorillaNew Member Introduct...New member
cissywalton2GorillaCalifornia Sidecar T...how do I change out the reverse bel...
Noodles1073Noodles107Harley Freewheeler /...Tobacco Fade
Old Aviator5Old AviatorHonda TrikesGreasing a Motortrike Coupe SA rear...
SaltBushBill11trike ladyNew Member Introduct...New member
ronc44242ronc4424Harley Tri Glidequestion
Old Aviator5SkavoolaHonda TrikesGreasing a Motortrike Coupe SA rear...
Old Aviator5rhino 2Honda TrikesGreasing a Motortrike Coupe SA rear...
Old Aviator5Old AviatorHonda TrikesGreasing a Motortrike Coupe SA rear...
cissywalton2cissywaltonCalifornia Sidecar T...how do I change out the reverse bel...
Skavoola14PosseRiderNew Member Introduct...New to Trike Talk
Skavoola14woodyNew Member Introduct...New to Trike Talk
PopPop13woodyNew Member Introduct...New Member
Speedy Pete12woodyNew Member Introduct...New member from Alberta, Canada
Vulcanology10woodyNew Member Introduct...New member
SaltBushBill11woodyNew Member Introduct...New member
SaltBushBill11hardwickbvNew Member Introduct...New member
Vulcanology10hardwickbvNew Member Introduct...New member
Speedy Pete12hardwickbvNew Member Introduct...New member from Alberta, Canada
SaltBushBill11rhino 2New Member Introduct...New member
Likes Likes:  2
Thanks Thanks:  0
Results 1 to 11 of 11

Thread: motor still not right

  1. #1
    200+ Posts
    Join Date
    Apr 2015
    Location
    pineville, la
    Posts
    201
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default motor still not right

    I have put several post on here about my motor. It is still not right. Just to refresh. I have a 1600 stock cc motor with dual Empi 34 epc's. I have JBug buggy duals on it. I changed to the SVDA distributor. I have tried adjustments on the carbs, tried different timing from 7 to 12, put new plugs in. I ordered new idle jets a 57 and 60 and new 140 main. I put just the 57 in and it ran even worse so I put the 52 back in.

    To the best of my knowledge this is how I would explain what it is doing. Oh before I forget.

    On the instructions with the SVDA distributor it doesn't list the 34epc as one of the carbs it is compatible with.

    Both carbs have a brass tube off the left side on both carbs.

    I have a hose off there with a t running to the distributor. I guess they are pulling enough vacuum for the carb to work right.

    Now this is what it is doing. When I crank it up and it is warm it idles great. If I pop the throttle in neutral it falls on its face. Not good response. Once I get going it misses and sounds like it spits back though the carbs and pipes almost like a back fire when I am on the throttle. Just at a steady speed it seems better. Especially through the pipes if I really get down on it.

    I have checked for manifold leaks and I don't seem to have any. The valves are set good so I don't think it has anything to do with that.

    How do I know if the vacuum advance is working like it is supposed to.

    I am still trying but it is getting more aggravating. Any comments would be appreciated.

    Things i am going to do today include checking the compression and make sure it is good, change plugs wire, and recheck the gap on the plugs.

  2. #2
    300+ Posts vw driver's Avatar
    Join Date
    Jan 2014
    Location
    Tacoma, WA USA
    Posts
    310
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default

    To test the VA; remove dist cap, remove hose from the tee and suck on it. You should be able to see the VA assembly moving inside the dist. If you plan to keep the dual carbs a sync tool would be a good investment or you could switch to a single carb, a stock Solex or a Weber 2bbl progressive. I have stock Solex carbs on both of my VWs, they won't win any races but they are reliable and easy to adjust. As for the backfire and popping, a bad dist cap can cause it as well as a too rich mixture with retarded timing among other things.
    Name:  imageproc.aspx.jpeg
Views: 318
Size:  12.5 KB
    Attached Images Attached Images  

  3. #3
    200+ Posts
    Join Date
    Apr 2015
    Location
    pineville, la
    Posts
    201
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default motor still not right

    I haven't inspected the distributor cap but I will try and look close at it. It is a new distributor but that doesn't mean the cap it is good. I'll check the advance like you said. The timing is set on 10 degrees and 30 to 32 degrees advanced. I checked the compression on all cylinders today to make sure they are ok. They are all 100 plus or minus 5 lbs. I think that should be good. All the plugs were almost white so I know that's lean. I feel like everything is ok except the jetting on the carbs. I do have a sync too.

    I am going to call aircooled.net tomorrow and see if they can give me any pointers.

    That is where I bought my jets from.

    I'll check the vacuum like you said.

    Thanks for the help.
    Quote Originally Posted by vw driver View Post
    To test the VA; remove dist cap, remove hose from the tee and suck on it.

    You should be able to see the VA assembly moving inside the dist. If you plan to keep the dual carbs a sync tool would be a good investment or you could switch to a single carb, a stock Solex or a Weber 2bbl progressive. I have stock Solex carbs on both of my VWs, they won't win any races but they are reliable and easy to adjust. As for the backfire and popping, a bad dist cap can cause it as well as a too rich mixture with retarded timing among other things.
    Name:  imageproc.aspx.jpeg
Views: 318
Size:  12.5 KB

  4. #4
    1000+ Posts Rsw's Avatar
    Join Date
    Sep 2011
    Location
    Little Hocking, Ohio
    Posts
    1,103
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default

    Throw those junk EMPI carbs over the hill and get a single Solex 34 pict3 and be done with it!! Get a good core and intake from Scudders if they have any left and put a rebuild kit in it.

    http://www.scuddersperformance.com/

  5. #5
    300+ Posts vw driver's Avatar
    Join Date
    Jan 2014
    Location
    Tacoma, WA USA
    Posts
    310
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default

    I'd have to agree.

  6. #6
    200+ Posts
    Join Date
    Apr 2015
    Location
    pineville, la
    Posts
    201
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default motor still not right

    It sounds like I need different carbs but right now I have to work with what I have. I put the 57 idle jets back in and messed with the carbs some and I think it is running the best I have had now. I started out like most of the of tech articles said with the speed screw out two turns on each carb and the idle adjustment in 1 1/2. When I cranked the motor it would not stay running like this. I had to go in one more turn for the motor to keep running on its on. I adjusted the speed screw on each carb and ended up with 1 turn out on the right side and 1 1/4 out on the left carb. I ended up with the right side idle screw is in 3 turns and the left is 3 1/4 in to have a 700 to 800 rpm idle. Any comments or advice.
    Thanks

    Quote Originally Posted by vw driver View Post
    I'd have to agree.

  7. #7
    1250+ Posts jaxbobg's Avatar
    Join Date
    Nov 2011
    Location
    Jacksonville Beach
    Posts
    1,054
    Thanks
    2
    Thanked 7 Times in 6 Posts

    Cool

    Okay, I'm intrigued. Starrider, is that why you posted the question about balance tubes that nobody else answered?

    Do you have a balance tube on your Empi setup?

    Judging by the quick research I've done, the VW wrenchers seem to indicate that the Empi is a Chinese version of the Weber. Further search shows that the Weber dual carbs do have a balance tube in the setup.

    Maybe that's the answer you're looking for.

    Just my observation. Don't flame me. I've been trying to learn about various engine designs from way back.

  8. #8
    200+ Posts
    Join Date
    Apr 2015
    Location
    pineville, la
    Posts
    201
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default motor still not right

    Thanks jaxbobg for the reply. If you read my post I have dual Empi 34's. I don't have a balance tube and still not sure what it is.Or exactly what it does or if I need one. Yes from what I understand the Empi is a Chinese version of the Weber and it seems most people think they are junk. I may go to Webers later but for now it is Empi's. I just want them running the best I can and I think it will be the jetting. I have taken them apart and they are clean and not stopped up and the float is right. I have 52,57 and 60 idle jets to try. I have a 130 main in now and I have a 140 to try. I believe if I can get the right combination they will be suitable for now.

    From what I have read 80% of performance is on the idle circuit side.

    I know if I am going along 50 or so shift 3rd and gas it it will sit you back the seat and not miss a lick.

    To me that would probably mean the high speed part is good. I will keep trying.

    Quote Originally Posted by jaxbobg View Post
    Okay, I'm intrigued.

    Starrider, is that why you posted the question about balance tubes that nobody else answered?

    Do you have a balance tube on your Empi setup?

    Judging by the quick research I've done, the VW wrenchers seem to indicate that the Empi is a Chinese version of the Weber. Further search shows that the Weber dual carbs do have a balance tube in the setup.

    Maybe that's the answer you're looking for.

    Just my observation. Don't flame me. I've been trying to learn about various engine designs from way back.

  9. #9
    1250+ Posts jaxbobg's Avatar
    Join Date
    Nov 2011
    Location
    Jacksonville Beach
    Posts
    1,054
    Thanks
    2
    Thanked 7 Times in 6 Posts

    Default

    Okay, here goes. In high school, the group I hung out with constantly tried to hot rod our old Chevys. On dual Holley carbs we played with different sized balance tubes because the Holleys are not a plenum design.

    Here is an explanation from Shoptalkforums (I quote):

    "Because the four cylinders of the Porsche/VW design are on opposite sides of the engine and are not all co-joined like a V6/V8 manifold, a pair of plenum-type carbs need a crossover tube between the manifolds to make the two carbs work together as a team.

    The intake pulses on each side occur at 180 degrees from each other, then have to wait 540 degrees before the next impulse. The second intake valve on each side then opens to a manifold with reduced intake charge pressure. To even out manifold pressures, the fix is to connect them with a tube.

    Crossover tube systems give smoother idling and midrange performance, but soften throttle response feel somewhat if not reduce actual response time. Porsche used 12mm inside diameter crossover tubes, but throttle response feel can be improved by using as small a crossover tube as possible while still getting the benefits from it.

    A carb is bolted to a manifold with a large plenum area inside it from which all cylinders draw. The negative pressure inside the plenum caused by a constant draw on it from the cylinders makes it easier for the incoming air/fuel mix to enter. This plenum area also acts to contain and dampen reversion pulses, which are shock waves that travel from the intake valve port (as the valve slams closed) all the way back up to the carb throat.

    Since the Weber [also Empi] design has no plenum, sometimes at high (and sometimes even at low RPM’s) the reversion waves get so fierce that an air/fuel “fog” is forced out of the carb throat in a condition called standoff. This causes trouble, preventing a proper air/fuel mix, and the opportunity for an intake backfire or spark plug crossfire to cause an exciting carb fire."

    I've found other, more technical explanations but they mostly apply to high performance engines.



    Also wondering what that vacuum hose in the picture posted by vw driver was used for?

    If that was to be used as a crossover, I'd say forget it and get a length of metal tube with an I.D.

    between 6 and 12 mm then cut to fit.

    Don't have a VW engine nearby that I can look at for reference so can only go by memory and diagrams. Hope this helps.

  10. #10
    1250+ Posts jaxbobg's Avatar
    Join Date
    Nov 2011
    Location
    Jacksonville Beach
    Posts
    1,054
    Thanks
    2
    Thanked 7 Times in 6 Posts

    Default

    Starrider,

    Judging by your posts in the past few months, you have been attacking your performance issue by changing a bunch of variables all at the same time. Playing with the dual carbs, the dizzy, and the basic 1600 components (and maybe the exhaust?) simultaneously would cause many good mechanics to go screaming into the night.

    Let's recap a few things deduced rom your posts:

    1. You state, "On the instructions with the SVDA distributor it doesn't list the 34epc as one of the carbs it is compatible with." Okay, you don't say, but let's assume you bought a 034. Instructions state it is compatible with the Weber ICT (same design as the Empi EPC).

    2. You don't specify the model year of your engine, except Roadhawk 2002. So, let's assume it's a Type 3, built sometime after 1966. Since there is a subtlety of differences between engine year designs, these variables affect carburetion, ignition timing, etc.

    3. Apparently you have been combing the web, looking at sites like TheSamba.com and aircooled.net for solutions. Based on the Trike Talk responses and info on these other sites, have you been able to narrow down the problem area to something specific?

    Sounds to me like you've been changing jets, ignition timing, and other things at the same time, so there's no way to really know what has a positive effect and what makes it worse.

    When I've had this problem in the past, I get out the old pad and pencil. I tweak just one thing (carb idle jet, dizzy advance, whatever) and write down what I did and the result, better or worse.

    Then move on to another suspect item and record the change and the result.

    After about five of these changes an overall pattern usually emerges that leads to the AHAH!!

    moment, (usually in the middle of the night )

    Good luck with your Roadhawk mods.

    I'm fresh out of suggestions.

  11. #11
    900+ Posts Fowler's Avatar
    Join Date
    Sep 2014
    Location
    Moneta VA
    Posts
    938
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default

    Quote Originally Posted by starrider1946 View Post
    When I crank it up and it is warm it idles great. If I pop the throttle in neutral it falls on its face. Not good response. Once I get going it misses and sounds like it spits back though the carbs and pipes almost like a back fire when I am on the throttle. Just at a steady speed it seems better. Especially through the pipes if I really get down on it. I have checked for manifold leaks and I don't seem to have any. The valves are set good so I don't think it has anything to do with that.

    I had what sounds like the same issue on my Trike
    I checked everything and finally changed the primary idle jet form a 50 to a 55 That did the trick for me.
    Mine is running a lot better and even gets better gas mileage

    I am running a single carb though http://www.3fowlers.com/carb.html

Similar Threads

  1. Help motor guys
    By starrider1946 in forum VW Powered Trikes
    Replies: 2
    Last Post: 05-13-2015, 10:37 PM
  2. Motor question
    By starrider1946 in forum VW Powered Trikes
    Replies: 22
    Last Post: 05-11-2015, 06:30 PM
  3. Thanks to motor trike
    By jnorth in forum Motor Trike
    Replies: 8
    Last Post: 08-15-2012, 05:45 AM
  4. vw motor in oz
    By blueystar in forum VW Powered Trikes
    Replies: 1
    Last Post: 09-03-2011, 04:18 AM
  5. motor oil
    By steelman0933 in forum Honda Trikes
    Replies: 6
    Last Post: 08-16-2011, 08:42 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •