Quantcast
Jump to content

Starting the 125cc

Notallthere
 Share

Recommended Posts

Notallthere Apprentice

Notallthere

Posted
Posted

Hi all

I am pulling my last bit of hair out with this little GY6 125cc atv. Is there a decompressor on start up ? I put a new starter on and with the spark plug out and the battery direct to the starter it spins over a treat, but spark plug in it pulses or does not turn over at all. Please any help

Mech Grand Master

Mech

Posted
Posted

Have you tried turning it over on/by the crankshaft with the plug in ? Perhaps it's got too much compression, or perhaps the piston's hitting the sparkplug.

Have you tried watching the voltage while it's cranking over ? Perhaps it needs a better/bigger battery.

Notallthere Apprentice

Notallthere

Posted
  • Author
Posted

Hi Yes tried the fully charged car battery and had the head off with no damage to see. It does act as to much compression it's at 120psi and the crank is free and easy to rotate. I know that some engines have a auto decompresser on start up ? I have been looking for what to set the tappets to because all the same engines have a different gaps.

Cheers

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

  • Similar Forum Topics

    • Gwbarm
      Heavy Duty ATV Cover
      By Gwbarm
      Does anyone have a recommendation of a really Heavy Duty ATV cover. I have bought several and they do keep the water off somewhat, but they are very thin and do not contour with the shape very well and water pools up in the rack louvers. I think i may be looking for a heavy canvas one, if anyone has a recommendation it would be greatly appreciated.
    • AnthonyT
      First time ATV buyer
      By AnthonyT
      In search of my first ATV? What are good older 4x4 models?
    • 1998Zuki250
      Favorite ATV Tires?
      By 1998Zuki250
      Looking to see if anyone has any input on ATV Tires? 1998 Suzuki quadrunner LTF250
    • Ajmboy
      ATV Snow Plow Review, Best ATV & UTV Snow Plows
      By Ajmboy
      So we are almost a month into winter and I've been so busy working on my house that up until today, I didn't realize that we just haven;t gotten any real snow yet to warrant putting the plow on my grizzly. So that got me thinking, what are the latest plows out there and what ATV plows are the best? I've got 2 snow plows for my grizzly, a quadboss pile driver atv plow set up and a snowsport ATV plow. They are both a bit dated now and I tend to stick with the snowsport due to ease of use and I just like it so much. So if you have a plow on your ATV, please let us know what it is and post a picture with your atv/plow would be awesome. Would also like to know what you like and dislike about it.
      This is back a while when I did a write up on these 2 plows.... in 2009 I got the snowsport and in 2012 I got the quadboss.
       
    • Panupong Pradchaphet
      Winch ATV in to Truck Bed
      By Panupong Pradchaphet
      I have a Sportsman 450 HO and almost killed my self when loading it on my truck with ramps.  It rolled off the top of the ramps and tailgate and nearly landed on me.  I now want to winch the ATV in to the truck.  My question is are the front side bed tiedowns in my 2011 RAM strong enough to winch to without distorting the hooks or sides of the bed?

COMMUNITY SECTIONS

ATV FORUMS

QUADCRAZY MEMBERSHIP

Be a part of best online community of ATV riders and join thousands of people who love ATVs! Share your ATV photos, videos, ATV rides, get help with your ATV and more. Not a member?

SIGN UP TODAY

ADVERTISE WITH US

FOLLOW US ON

  • Automotive Webmaster
×
×
  • Create New...