Jump to content

Nominations for Tractor of the Month
Garden Tractors and Parts on eBay



Photo
- - - - -

Carb Repair (not Gt)

yamaha g1

  • Please log in to reply
18 replies to this topic

#1 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,300 Thanks
  • 28,626 posts
  • Location: N. W. PA

Posted October 05, 2012 - 07:16 PM

OK, so it's not a Garden Tractor, but it is an internal combustion engine. :D

This is a google photo, just so everyone knows what we're talking about:
yamaha G1.jpg

I got it because it wouldn't run, or when it would it wouldn't stay that way for long.
This problem turned out to be electrical and partially due to a defective CDI. I will get that writeup done in another day or two as to the final fix, but for tonight... Carb.

Meet Carb.
GEDC1045 (Large).JPG
Carb has a bit of a problem.
GEDC1050 (Large).JPG GEDC1052 (Large).JPG
How many years ago the OEM bushing turned to dust, I will never know... But the shaft and the hole thru the top of the carb were anything but round or correct size. The cumulative slop was just shy of 1/8" at idle and just over 1/8" WOT. No idea how it ran at all.

Priced new shafts online, starting around $40 and that still didn't cure my worn carb body issue.
New carbs over $120. Hmmm. CFO says no.

OK, Nothing left to lose, get creative.
GEDC1052 (Large).JPG
You can see in the above picture, an area at the top of the shaft that isn't worn. This is actually outside the carb body and the plastic sleeve and (long broken) return spring ride here.

I found a brass flare fitting in a drawer and did a little measuring with the calipers.
It'll work, Metric... (10mm x 1) but it'll work.
I had to drill a 5.5mm hole thru the brass. Then I fitted it on the shaft. (insert smile here)
GEDC1057 (Large).JPG

Next, I drilled an 11/32 hole down thru the carb body and tapped it to 10mm
GEDC1053 (Large).JPG

Thread locker on the brass, and both butterfly screws, a couple drops of oil on the shaft, and...
GEDC1059 (Large).JPG GEDC1058 (Large).JPG

It's about as perfect as I could get with a drill press and a hand tap. Impressed the heck outta my kid. The return spring will have to be a linear spring to one of the brackets. No biggie, I hope.

Tomorrow, I'll put it on and see what happens. Wish me luck.
  • caseguy, wvbuzzmaster, MF10Ryan and 2 others have said thanks

#2 Alc ONLINE  

Alc

    Tractorholic

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 1094
  • 5,458 Thanks
  • 6,624 posts
  • Location: Bangor Pa

Posted October 05, 2012 - 07:22 PM

Nice repair :thumbs: Hope to hear how it's going to turn out soon , Al
  • MH81 said thank you

#3 JDBrian OFFLINE  

JDBrian

    Super Moderator

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2507
  • 9,574 Thanks
  • 14,136 posts
  • Location: Hubley, Nova Scotia - Canada

Posted October 05, 2012 - 07:50 PM

Nice use of what's available to solve an otherwise expensive problem! You'll have your "Daily Driver" back on the road in no time!
  • MH81 said thank you

#4 olcowhand ONLINE  

olcowhand

    Red Tractor Nut & Diesel Addict

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 20
  • 35,648 Thanks
  • 29,840 posts
  • Location: South Central Kentucky

Posted October 05, 2012 - 07:54 PM

That's about the worst worn shaft I've seen to date! But what a perfect repair you made to it.....makes me proud as peach of ya's! :thumbs:
Seriously, a great repair!
  • MH81 said thank you

#5 IamSherwood OFFLINE  

IamSherwood

    Elf guardian

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 2066
  • 8,379 Thanks
  • 7,696 posts
  • Location: Northern Ontario

Posted October 05, 2012 - 08:07 PM

Nice fix Alan. Hope it works better for you now. Are you taking up golf?
  • MH81 said thank you

#6 olcowhand ONLINE  

olcowhand

    Red Tractor Nut & Diesel Addict

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 20
  • 35,648 Thanks
  • 29,840 posts
  • Location: South Central Kentucky

Posted October 05, 2012 - 08:08 PM

I figure this is Alan's Mom & Dad's cart?

#7 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,300 Thanks
  • 28,626 posts
  • Location: N. W. PA

Posted October 05, 2012 - 08:10 PM

I figure this is Alan's Mom & Dad's cart?


No, this is a derelict I picked up. It had potential... And it was RED, how could I say no?

#8 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,300 Thanks
  • 28,626 posts
  • Location: N. W. PA

Posted October 05, 2012 - 08:11 PM

Nice fix Alan. Hope it works better for you now. Are you taking up golf?


:bigrofl:

Only if you can play it in the woods at 20 mph. :D

#9 olcowhand ONLINE  

olcowhand

    Red Tractor Nut & Diesel Addict

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Sponsor
  • Contributor
  • Member No: 20
  • 35,648 Thanks
  • 29,840 posts
  • Location: South Central Kentucky

Posted October 05, 2012 - 08:13 PM

No, this is a derelict I picked up. It had potential... And it was RED, how could I say no?


Well, no arguing with a RED purchase!

#10 HDWildBill OFFLINE  

HDWildBill

    Freedom is not Free. Thank those in uniform for your freedom.

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 6354
  • 8,709 Thanks
  • 8,563 posts
  • Location: Ga

Posted October 05, 2012 - 09:43 PM

Nice fix Alan, I'll be interested to see how the CDI turned out.
  • MH81 said thank you

#11 Texas Deere and Horse OFFLINE  

Texas Deere and Horse

    RED Wild Hogs, Horses & Deeres

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 1435
  • 14,464 Thanks
  • 15,392 posts
  • Location: East of San Antonio Texas

Posted October 05, 2012 - 11:05 PM

Alan, My Mom and S.Dad have a summer cabin place they stay at all summer and everyone has gas golf carts to run around on. Good idea sense it seems they all like the adult drinks. Anyway that model of Yamaha Cart is the favorite model of all the carts running around there. It seems to be the most reliable and fastest stock cart made.

Very nice save, you got a good one and it will look good with M/F decals on it. :thumbs:
  • MH81 said thank you

#12 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,300 Thanks
  • 28,626 posts
  • Location: N. W. PA

Posted October 06, 2012 - 07:32 AM

Nice fix Alan, I'll be interested to see how the CDI turned out.


I started a thread on that here: http://gardentractor...-i/#entry219294

#13 KennyP ONLINE  

KennyP

    FORDoholic

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2253
  • 28,461 Thanks
  • 39,690 posts
  • Location: Collinsville, Oklahoma

Posted October 06, 2012 - 07:49 AM

Cool fix on the carb, Alan! I read your CDI fix to. Both neat fixes!
  • MH81 said thank you

#14 Michiganmobileman OFFLINE  

Michiganmobileman

    Old Tractor Addict

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 5678
  • 1,235 Thanks
  • 1,842 posts
  • Location: Barryton, Michigan

Posted October 07, 2012 - 06:59 AM

Yep thats a nice: "use the parts on hand and the old noggin" fix McGyver... I mean Alan :smilewink:
  • MH81 said thank you

#15 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Staff Admin
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 27,300 Thanks
  • 28,626 posts
  • Location: N. W. PA

Posted December 08, 2012 - 10:31 PM

Had the time to reorder the rings (I broke the first set) and they came in Thursday.

New rings are in and the engine runs great. After a break in drive, I took the kids for a short ride around.
Ryan and I built a replacement rear bumper, built some seat supports, and did some cleanup.

Trying to convince the wife we need to keep it. :D
  • wvbuzzmaster said thank you





Also tagged with one or more of these keywords: yamaha g1

Top