DHZ 140cc Issue

[edzy]

hey guys
well about a week ago i grinded the weld out of my exaust.
i havent tuned the carb yet. is this a must?

its lost its nice poppy crackly sound . sound bad atm.

also lost some power.

will tuning the fuel air fix this?

or should i just go buy a washer and weld it in?

thanks

 

[ducar.r.spec]

might need to jet up a bit

 

[motoXXX]

this happen to my dhz 140 about a month ago but i took the exhaust of and put it back on and was ok maybe iput it on wrong but its makes it louder and sound better

 

[edzy]

oh ok

it doesnt kick back any more either and is alot harder to start , take maybe 10 - 20 kicks
??

any more ideas?

 

[crog]

Hey i had to tune my bike a tiny bit after i did it. Mine runs fine now i think i turned my fuel mixture thing out like not even a quarter maybe a quarter

 

[themountain]

Maybe you grind too much??? see if the exhaust don't get wrong air and check your plug for colour....grey ashy---->too lean

 

[edzy]

ok , i welded a washer in last nice.
should be back to the same size as before.

should have some decentback pressure and bottom end now .

 

[edzy]

he guys , it still sounds knocky and shit.
any ideas?
could the valve clearences need checking?

 

[themountain]

of course...I thought you checked that already!!