lifan 125-30 sprint overheating

ernstyle · L Plate Warrior Joined: 16 Jul 2009 Karma :

hi hope some kind person out there can help me??? just bought a 2nd hand lifan 125-30 sprint and its overheating quite badly. also the bike keeps losing power when going up hill ( really struggles to get to 40mph )wondered if this was a common problem with these type of bikes?? any help would be very much appreciated thank you

stirlinggaz · World Chat Champion Joined: 22 Jul 2007 Karma :

hi,
those engines are known for running very hot.
not much you can do about it.
just fit a decent spark plug & change the oil often.
& make sure the air filter foam is clean.
you could try playing around with the mixture, if your confident.
cheers,
GAZ

baldy · World Chat Champion Joined: 16 Feb 2004 Karma :

Did you forget to turn the choke off?

ernstyle · L Plate Warrior Joined: 16 Jul 2009 Karma :

whats the best plug to buy??? and no the choke is off

ernstyle · L Plate Warrior Joined: 16 Jul 2009 Karma :

also just changed the oil

stirlinggaz · World Chat Champion Joined: 22 Jul 2007 Karma :

spitfire123 · Could Be A Chat Bot Joined: 06 Nov 2008 Karma :

carlperkins00... · Crazy Courier Joined: 16 Jun 2009 Karma :

those chinese bikes have a reputation for running hot.. i had a lifan 125 dirtbike style thing... one day it got so hot it broke. Laughing

you could try different coolant, regular oil changes (as someone has said), spark plugs.
chances are it will happen for as long as you have the bike.
my advice is sell and buy something japanese.. chinese only gives you more problems.
if you hadnt already figured out.. i am launching a personal vendetta to rid the world of chinese bikes Twisted Evil

do not hose the engine down!
i'm only saying it as once when i was a dumb little boy i hosed down an overheating engine on a quadbike... it broke.. Laughing

the whole thing pretty much welded into a big solid block. Razz

joan33987 · Renault 5 Driver Joined: 05 Apr 2009 Karma :

hm... Somebody messed with the carburettor causing it to run lean? running lean will cause overheating
and will eventually "pre-ignition" and break the head gasket.

Maybe it's just how they work.

I don't know how you run it, but mine, if I do 30 minutes+ of motorway at 60mph, you could feel that the engine has less power when there's a slight up hill. If you stop at service station, the engine will die at idle. Let it rest for 5-10 minutes, it all comes back to normal again.

Yea, regular oil changes helps. Every 2000km, Semi-synthetic bike oil, such as the Silkolene Super 4 10w-40.

I'm based at Leeds, might be able to come and have a look at yours.
____________________
current toys: Skygo SG125-J 125cc stolen again 1992 Kawasaki GPZ500S (crashed damaged) 1996 Renault Clio 1.2 2005 CG125 project