help need with 125cc engine

[timmy8]

help need with 125cc engine gasket keeps blowing

hey everyone i hope someone can help me out
me and the missus brought her a 125cc dune buggy off ebay
now everything was going great until the other day when we have started having problems with the motor
i found out that the cylinder head cover gasket was busted so i have replaced it 3 times now and i thought that it fixed the problem
but the moment you you out the buggy into second gear and give it some gas the gasket blows intantly. like there is too much pressure in the head.
i have spoken to the guy in melb who we brought the buggy and he thinks there might be a leak in the head gasket so he is sending me up a new head gasket.
so i am asking you guys for some advice as what do you think the problem is and how i can fix it because i the little guy wants to go riding since its school holidays and hes upset so any help would be great
thanks in advance
tim

 

[my67xr]

Blocked breather on the cranks maybe?
Is the buggy kind of like my sons?
There is a thread on it in the ATV section

 

[mikewayne]

This kind of problems occurs due to bad oil pump, so check the pressure because once you turn the engine and if oil pressure goes up to 80PSI then oil filter gasket blows out. so you need to replace the oil pump.

 

[DHZ_XR8cing]

This kind of problems occurs due to bad oil pump, so check the pressure because once you turn the engine and if oil pressure goes up to 80PSI then oil filter gasket blows out. so you need to replace the oil pump.

Where are you geting your info from?

 

[sean01]

hey everyone i hope someone can help me out
me and the missus brought her a 125cc dune buggy off ebay
now everything was going great until the other day when we have started having problems with the motor
i found out that the cylinder head cover gasket was busted so i have replaced it 3 times now and i thought that it fixed the problem
but the moment you you out the buggy into second gear and give it some gas the gasket blows intantly. like there is too much pressure in the head.
i have spoken to the guy in melb who we brought the buggy and he thinks there might be a leak in the head gasket so he is sending me up a new head gasket.
so i am asking you guys for some advice as what do you think the problem is and how i can fix it because i the little guy wants to go riding since its school holidays and hes upset so any help would be great
thanks in advance
tim

yr going to have to describe yr problem a little better mate..
is it the head gasket or the cam cover gasket that youve replaced?

if its the head gasket and it keeps blowing then maybe the head stud nuts are bottoming out causing bad head bolt tension..
if this is the case youll need to add another set of head stud washers..