Might be getting a dirtbike

[mrman550]

Its a 82 gn125 for 50 bucks needs piston which costs 37 are these any good any info would be great :-D

[thefox]

Is that a dirt bike? I thought Suzuki made a gn 125 road bike.

-Andrew

[mrman550]

wellit a road bike with dirt bike setup trying to talk him down a little how hard is it to put a piston in

[thefox]

I don't think it would be hard especially if you have done something like this before. It wouldn't handle the same a dirt bike but for $50 who cares! I would definitely go for it.

-Andrew

[Macs]

what year is it. in th 80's and early 90's they were pure street. kinda like a honda rebel.. mine was an 93 gn 125. the sp125 and dr 125 all use the same motor. i also had a 87 sp125. i had constant problems out of the heads on both of them. if you ran them hard they wouldnt get enough oil in the head and the cam would cut through the head like butter. it took me almost ten years after that to buy another suzuki.

[Macs]

oh yeah. when the cams would start getting bad you usaully would send a valve through the piston. happened twice.

[mrman550]

its an 82 gn 125 do they have any power? i do all my own moter work and put my tecate moter together but its 2 stroke and this is 4 never put a piston in befor the guy i am probeally getting it off of said he was riding it for a few hours and burnt a hole in the piston and the piece is in the bottom end its electrick start too and workshow did the hole get burnt in the piston too lean?? could this have damaged anything else i am buying it too resell in the summer he also has a 1990 cr 80 for 200 needs all new topend i am offering him 30 tommorow 8)

[Macs]

it depends on what size you are. when i had mine i was 15 years old. about 5'10" and 140lbs. i was disapointed. i could not keep up with my friends in there 2 stroke 80cc. but they were quiet and very good on fuel. is the bike taken apart. it burning a hole in the piston is very unlikely. i would dfinatly check it out. for $50.00 you cant go wrong. if you have to split the cases to get nything out that is a pain. but the piston is not that hard. just make sure you mark the cam chain before taken it and do not let it fall into the crankcase cause that sucks.. if you havnt opened up a four stroke before the $50.00 will be worth the experiance. more parts, more expensive but i love them.

[mrman550]

i ofered him 40 and he said yea i think he ran it too lean and when it stoped it siezed if this happed will it need bored he said it will not turn over so hopefully needs piston and rings?? if it needs bored no prob i can get it done for free!! its all together but the head is off and its all there how would i mark the cam chain what should i look for befor i buy

[Macs]

if the head is already off it is to late to mark the chain. you will have to put it on tdc and if i remember correctly there is a dot on the cam gear and it should point up.but in many cases the mark on the cam gear is worn off by chain slap. unless they keep the timing chain adjusted frequently.

[mrman550]

so that means it needs to be timed ( but im worried if the piston seized how will i get it out of the jug???

[mrman550]

there is a hole in the piston what caused this and alot of built up marks on the piston and valves

[rally4x4racer]

freak!

I just bought a sp125 for 50 bucks - this was useful info -thx