It is currently Sat Apr 27, 2024 9:55 am

Board index » Tech and Fab » Air Cooled Engines

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 23 posts ] 
Author Message
 Post subject: carb problems
PostPosted: Mon Mar 11, 2013 7:57 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
ok my carbs have always done this. first of all last week we completly broke them down and cleaned them up they run like a champ if im on top end but if im lugging up a hill and decide to get on it they wont pick up it just is verry slugish and never gets going what could cause this also they are dual webber 40's i believe my main jets are 50's

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Mon Mar 11, 2013 8:06 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
also motor is a 2221

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Mon Mar 11, 2013 10:19 pm 
Offline

Joined: Sat Feb 24, 2007 12:02 am
Posts: 349
Location: Germantown Ohio
Give more info on motor. If the carbs idle and run good I would look at other areas before condemning the carbs.


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Mon Mar 11, 2013 10:24 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
well my thought is the idles may be overdoing it on the fuel may need to change them the motor has a 80 crank 94 pistons cb044 heads 110 cam all i know about it

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Tue Mar 12, 2013 12:13 pm 
Offline
BOTM Winner
User avatar

Joined: Wed Nov 07, 2007 2:07 pm
Posts: 1599
Location: Petersburg, Ky
check fuel pressure then float levels. I believe you want around 3 psi... NO MORE!!! I always run the floats as low as possible. keep lowering them then run the buggy hard for as long as you can to see if you run out. once you run out, raise them up a little and leave em there.

_________________
Maybe you should chug on over to mamby pamby land....


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Tue Mar 12, 2013 6:22 pm 
Offline

Joined: Tue Jul 12, 2011 7:16 pm
Posts: 711
Location: hayden, al
456 gears and 36'' buckshots... you gotta light it up before you hit the hill jesse :roll:

for what you want it to do, your gunna have to run a lower gear (5.42) or run a single carb

_________________
LEGALIZE BLUEGRASS!!!

Save a tree... eat a Beaver


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Tue Mar 12, 2013 8:26 pm 
Offline

Joined: Sat Feb 24, 2007 12:02 am
Posts: 349
Location: Germantown Ohio
If what Reno says is true, you need a BIGGER motor!


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Tue Mar 12, 2013 10:06 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
it aint the gears and tires its in the carb it also smokes black so that would be to much fuel right i think its over loading it on bottom it has 50 idles so im gonna try some 45s and 40s

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Tue Mar 12, 2013 11:24 pm 
Offline
WB Contributor

Joined: Wed Jul 04, 2007 8:25 pm
Posts: 1304
Location: tuscaloosa alabama
When you figure it out let me know because my 2 seater has always done that even with a 2500 on it.


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Tue Mar 12, 2013 11:30 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Mon Mar 16, 2009 12:37 am
Posts: 2737
Location: moulton,al
kevin f wrote:
When you figure it out let me know because my 2 seater has always done that even with a 2500 on it.


he will get it figured out, sounds like he already knows whats wrong with it even though he was asking for advice and ignoring what everybody is telling him, i was gonna say the same as aaron but figured it would fall on deff ears :roll:

_________________
Just Stand On It!!!!

Chris


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Tue Mar 12, 2013 11:47 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
reason i dont feel its tires and trans cause i ran a lower gear befor and still did this i appreceate any suggestion just talked it over with a friend and we thinking iddle jetts may not be but gonna see and i dont think i have ignored anyone :shock: also float lvls could be it i know last long hill i was on it would loose its go on a long pull

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 12:37 am 
Offline

Joined: Tue Jul 12, 2011 7:16 pm
Posts: 711
Location: hayden, al
jesse wrote:
it aint the gears and tires its in the carb it also smokes black so that would be to much fuel right i think its over loading it on bottom it has 50 idles so im gonna try some 45s and 40s


if you know, then why ask :roll: same issue with your other buggy.. if you get it going and then gas it, it "runs like a champ on top" but if you lug up on a hill and then gas it "it sputters"... put a car in second gear, and try to take off on a hill, its gunna sputter.. same car, on the same hill with a little bit of a run and second gear will pull fine :shock: ... its the same principle :idea:

_________________
LEGALIZE BLUEGRASS!!!

Save a tree... eat a Beaver


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 12:41 am 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
i dont know thats why i ask lol i just said what i think it might be but want evry suggestion i can get but when i had the lower geared trans in it still did this so thats why im not thinking its my trans/tires and its not a sputter it just never gets the rpms up on bottom unless i turn it up befor i hit the hill

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 12:45 am 
Offline

Joined: Tue Jul 12, 2011 7:16 pm
Posts: 711
Location: hayden, al
jesse wrote:
its not a sputter it just never gets the rpms up on bottom unless i turn it up befor i hit the hill


just answered your own question...

_________________
LEGALIZE BLUEGRASS!!!

Save a tree... eat a Beaver


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 4:56 am 
Offline
WoodsBuggy Addict
User avatar

Joined: Mon Mar 16, 2009 12:37 am
Posts: 2737
Location: moulton,al
reno2165 wrote:
456 gears and 36'' buckshots... you gotta light it up before you hit the hill jesse :roll:


he has to make it to the woods in the first place before that can happen lol

seriously its gonna take a BIGGER motor AND a REGEARED (not just a lower r&p) tranny to even think about doing what you want with that big of a tire and a buggy that heavy

_________________
Just Stand On It!!!!

Chris


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 3:19 pm 
Offline
WB Contributor

Joined: Wed Jul 04, 2007 8:25 pm
Posts: 1304
Location: tuscaloosa alabama
Was the lower geared tranny a 4.83. If so thats not enough. To fix your problem you need a 4.10 or 4.25 first gear witha 5.42 ring and pinion and that will fix the problem.


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 3:41 pm 
Offline
WB Contributor
User avatar

Joined: Fri Sep 05, 2008 11:22 am
Posts: 1177
Location: Wellsville, Ohio
I dont see how youd need 45 idles i ran 50'd on my 1915 with dual 40's

_________________
"IT IS WHAT IT IS"


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 7:52 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
The 45s cleared up alot of the black smoke that it had on bottom dont have a hill to test it on so will have to wait and kevin that setup is my goal im putting back money to buy what I need for the trans

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 8:17 pm 
Offline

Joined: Fri Feb 02, 2007 5:34 pm
Posts: 27
Location: southpoint oh
Check your air mixture screews. If you have them adjusted more than 4 turns out to get it to run your idle jets are not big enough. Borrow some 60,s and readjust your air mixture screws. Float levels have to be correct. Black smoke could be too much pump shot.

_________________
Aircooled power!


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 8:18 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
Ok will check that out thanks

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 8:31 pm 
Offline
WoodsBuggy Addict
User avatar

Joined: Fri Nov 30, 2007 4:03 pm
Posts: 3181
Location: leeds alabama
They are 2 turns out whays that pump shot you mentioned

_________________
Image

I DO NOT FREE BASE COCAINE


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Wed Mar 13, 2013 9:42 pm 
Offline
WB Contributor
User avatar

Joined: Thu Sep 06, 2012 2:23 pm
Posts: 1212
Location: Chattanooga Tennessee
Accelerator pump is what he is talking about. Have you checked your timing and distributor to make sure the weights are swinging out.

Lastly check for vacuum leaks with some WD

_________________
Water Cooled Consortium, Chairman of the Build (Former AC purist)


Top
 Profile  
 
 Post subject: Re: carb problems
PostPosted: Sun Mar 17, 2013 9:32 pm 
Offline
BOTM Winner
User avatar

Joined: Mon Dec 25, 2006 1:57 pm
Posts: 1343
Location: Patrick Springs, Virginia
If you have 40's maybe your venturis are too small. Maybe not. Do you know what they are?

Having small venturis will cause it to run rich. (not enough air)

_________________
________________________________

Buy the best and cry once.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 23 posts ] 

Board index » Tech and Fab » Air Cooled Engines

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 31 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group