BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum

Go Back   BuggyMasters.Com - An On Line Mini Buggy Forum and Go Kart Forum > Technical Discussions > 150cc GY6 and Under Engine Tech

150cc GY6 and Under Engine Tech GY6 and Smaller Technical Discussion Forum

Reply
 
Thread Tools
  #1  
Old 06-03-2015, 08:51 PM
whitsend whitsend is offline
Lurker
 

Join Date: May 2015
Location: Transylvania, LA
Posts: 12
Default New carb and possible upgrades

Working on getting my son's buggy back going.
I'm pretty sure it is a Roketa GK-28A-150.

It has been sitting up for 1-2 years and the carb is going to need rebuilt or replaced.
Is it worth stepping up to the 30mm carb, or should I just stay with the stock size? (26mm?) The jets are rusty, I haven't tried to remove them but I'm afraid they may strip.

I have a high output coil, and was looking getting a new iridium spark plug, CDI, and UNI filter. It is all stock now.

Where is the best place to get these?
How do I tell if I have a AC or DC CDI?

Thanks.
Reply With Quote
  #2  
Old 06-04-2015, 08:31 AM
SYCARMS's Avatar
SYCARMS SYCARMS is offline
Supporting Vendor
 

Join Date: Sep 2009
Location: Senatobia, Mississippi
Posts: 3,375
Default

A 30mm carb will be too much carb. Get you a can of Berryman carb dip from Wal-Mart or Oreilly's for about 15.00. Disassemble carb removing all rubber seals, put it in the dip and let soak overnight, remove rinse under warm water while scrubbing with a old toothbrush then blow out all orifices with 20-30psi compressed air. The CDI has 2 pigtails going to it. One will have either 3 or 4 wires the other 1 or 2 wires. If it has 2 wires it is AC if 1 wire DC. Give me a call 662-301-1563 and I'll tell you what you will need to get more power out of your buggy without having to buy parts that will not make a difference in performance. If I do not answer make sure you leave a message and I'll call you right back.
Reply With Quote
  #3  
Old 06-05-2015, 01:47 PM
whitsend whitsend is offline
Lurker
 

Join Date: May 2015
Location: Transylvania, LA
Posts: 12
Default

Thanks.

It has 1 wire so DC.

I'll give you a call next week, I've got a lot going on over the next few days.
Reply With Quote
  #4  
Old 06-05-2015, 02:02 PM
whitsend whitsend is offline
Lurker
 

Join Date: May 2015
Location: Transylvania, LA
Posts: 12
Default

A couple of pictures I took.



Reply With Quote
  #5  
Old 06-05-2015, 03:27 PM
whitsend whitsend is offline
Lurker
 

Join Date: May 2015
Location: Transylvania, LA
Posts: 12
Default

I saw several <$25 carbs on ebay.

Are these as good as the OE carb? Not worth buying? Or?????

The carb dip recommended above is ~$20.
I think it may be worth just buying a spare to have on hand.
Reply With Quote
  #6  
Old 06-05-2015, 03:32 PM
whitsend whitsend is offline
Lurker
 

Join Date: May 2015
Location: Transylvania, LA
Posts: 12
Default

Also I was able to get the jets out.
It wasn't nearly as bad as I thought it would be.
Reply With Quote
  #7  
Old 06-05-2015, 05:59 PM
hhgtsplatinum's Avatar
hhgtsplatinum hhgtsplatinum is offline
Lite Contributor
 

Join Date: Jan 2015
Location: georgia
Posts: 98
Default

form what I know those are pretty much same as stock carbs I found a 26mm one with intake manifold for $27 though I decided to go wit a 26mm oko D slide, now about the oko and pretty much any slide carb from what I had read and heard and I am experiencing at this time is that they are hard to tune, however once tuned their performance is unmatched...
__________________
Hammerhead GTS150 Platinum
PnP Head, A12 Cam, Uni Filter with aluminum intake tube, Custom Straight through Exhaust, hp coil and ngk plug, 11G sliders, 2000 Contra Spring, 1000 Clutch Springs, ITP tires, winch. 130 main Jet, 38 pilot
Reply With Quote
  #8  
Old 06-12-2015, 11:29 AM
jmansracerocket's Avatar
jmansracerocket jmansracerocket is offline
Senior Member
 

Join Date: Apr 2012
Location: ny, long island
Posts: 1,342
Default

I would just buy a new replacement carb for the $30 bucks.
__________________
Hammer head Single seater know as herbie
under construction

Aluminum fuel tank, aluminum wheels, custom fuel/cargo rack, entire rewire, trail tech vapor, ported big valve head, a12camshaft, 12 gram sliders, straight intake, kirkey wide seat, front end extension. 4 point harness, welded cage. Hammerhead exhaust.



Blade Single Seater Restore
welded cage, engine build, new wiring harness/electric box, spun aluminum fuel tank.
Reply With Quote
  #9  
Old 06-12-2015, 12:50 PM
mrpostman831's Avatar
mrpostman831 mrpostman831 is offline
Lurker
 

Join Date: May 2015
Location: monterey county
Posts: 16
Default

If your jets are that bad what about all the other small orifices that are brass, differently not worth the headache of cleaning each one out, I second the buy another carb motion. Can save hours of time and carb cleaner lol, Ive tuned lots of slide carbs on atvs n street bikes, but if you clean out carb and set air adjustable all the way down, then start turning it out till it idles right, warms up , then give it a run, see if it bogs, continue tuning screw for desired plug color. Long process but real snappy throttle.
Reply With Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 09:42 AM.


Powered by vBulletin® Version 3.8.3
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.