Quantcast
Jump to content

Chinese 125cc

Notallthere

By Notallthere
in General ATV Discussion

 Share

Recommended Posts

Notallthere Apprentice

Notallthere

Posted
Posted

Hello all

I have been given a Chinese 125cc ATV. It has come with a few issues, The main one I am scratching my head with is the starter is not spinning the engine properly but ok with no spark plug. I have changed the started with no change to the slow turn over. It's not the battery but the power lead to the starter does get hot. Any advice so I can get away from throwing parts at it.

Cheers all

davefrombc Mentor

davefrombc

Posted
Posted

Try using a jumper cable directly from the battery to the starter to see if that spins it over faster. The wires from the starter solenoid to the starter should not be getting hot if the starter is not dragging.  They may be too small to deliver proper voltage  and current to the starter.  If it spins the motor over with the jumper cable then  change out the starter wires for heavier ones. If there is no difference then you need to  look for why the starter is dragging.

 

  • Like 1
  • 1 month later...
  • 3 weeks later...
Squily Rookie

Squily

Posted
Posted

Check wires are thick enough to allow current through. Might be dirty/corroded connectors. Jump-starting at the starter itself is good way to bypass the wiring- if it's slow there, then the problem is likely in the starter or maybe the engine has too much drag- how sure are you the crank is 'loose'. Have you tried winding the engine over without the spark plug in it?

 

Notallthere Apprentice

Notallthere

Posted
  • Author
Posted

Hi Squily Than you for your reply. New starter, new head and new plug. It's better since the head went on but when it fires it stops the engine dead with a clunk. The valve aren't hitting and it spins over really well but with the plug in it does struggle. Even with a car battery hooked up (Strange or what).

  • 5 months later...

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

    • RGS
      1989 Moto 4 YFM350ERW intermittent spark.
      By RGS
      1989 Moto 4 YFM350ERW intermittent spark.
      Quad has set for about 7 years and was running when parked.  When I replaced the battery and attempted to start it had no spark. 
       
      What I have done.  Followed troubleshooting in the manual. 
      1.       Coil failed the resistance check so I replaced it.  Still no spark.
      2.       I performed resistance checks on the stator and they all pass.
      3.       Found a bad rear brake stop switch and unplugged it and connected the wires in order to disable.  Now I have intermittent spark.  I believe that the issue is with either the stator or CDI and not sure which.
      1989 seems to be a transition year for electrical.  I can get new aftermarket CDI units for 87-88 and 90-94.  I cannot get ones for a 89.  I can get new stators for 87-89 and 90-95.  Looking at the schematics the wiring on my moto is closer to the 90 ones on the ATV side of the CDI and closer to the 87-88 on the stator side of the CDI.  Looking at part supply sources the stator housing is the same part # for all the years and looking at some of the stators on Amazon that have the dimensions on them both of the stators are the same size.
      What I am thinking of doing is to replace the stator and CDI with a 90-95 one as these parts are all readily available.   Does anyone know if this has been tried before and if there are any issues with doing this.  
       As a side note I also have a 1993 Moto 4 YFM350ER that has been sitting longer but it is located about 400 miles from me at this time.  By doing this change in addition to being able to get parts I will also have 2 ATV’s that are the same electrically. 
    • RadRob
      Hello to all.
      By RadRob
      I am new to this site. I have a 1987 Suzuki LT230S Quadsport I think. Is there a difference between quadsport and quadrunner?
    • 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

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...