it didnt all of a sudden get tight, it has been like this for a while.
here is the story. when i was a wee little lad i got my 97 and it had a very loose chain among other things. so being afraid to work on it, i brought it to yamaha of new rochelle. i was like fix all the shit, and the chain is a new one, its just loose. so they "fix" everything, and charge me a shitload. the guy says the chain is bad, im like it was ridden on 3 times and he is like its a banshee they go thru chains like that. so im like ok whatever pay for it and thats that. so now as i get used to working on the quad, i keep noticing when i fix shit they didnt do it correctly. then i get the 06 and i try and adjust the chain on the 97 to get it looser, and the tension adjusters are all the way backed out. so last night i go to take this too small chain off, and i find what i thought was the master link, and get this. they must have lost the master link, because under the clip the pins were just kind of hammered in there, and i had to grind them down to get it off. so the basic moral here is fuck yamaha of new rochelle, and fix ur shit urself.