I need a little help with my 490!

[D tom]

Hi guys, Been away for a while. But the bad thing is when I got back to put the '88 YZ 490 together again(just cant seem to stop tweaking this thing)
The dogs had pushed it over on its side.Nothing was broken.Everything went together nicely,however the clutch seems "low" before I start it could the ball bearing be missing?And if so does anyone know what size? My manual calls it a "nut" so .. Thanks, Dean.

[Mainjet2001]

Originally Posted by TRexRacing

15/32".Any good hardware store should have one.It'll be cheaper and faster than waiting on the Yamaha dealer.I'm boycotting Yamaha after the pistons for my RZ350 almost tripled in cost last year.$55 to $140 in the space of a week.My next bike most certainly will not be a Yamaha.Oh sorry just a little rant.

Ya think Yamaha will go broke?

[VAL]

Originally Posted by TRexRacing

15/32".Any good hardware store should have one.It'll be cheaper and faster than waiting on the Yamaha dealer.I'm boycotting Yamaha after the pistons for my RZ350 almost tripled in cost last year.$55 to $140 in the space of a week.My next bike most certainly will not be a Yamaha.Oh sorry just a little rant.

I think that the problem is supply and demand. As the, out of production bike, gets older and people purchase "out of production" parts, the supply of parts diminish and the laws of economics kick in and the price rises accordingly. Can you get aftermarket pistons?

[Mainjet2001]

Originally Posted by TRexRacing

Not my intention Einstein.Nice constructive post.Helped they guy out with his problem did ya?

Im fact this site will get along fine without me too.C ya.

To bad you give up so easy. Honestly hope you are kidding.

Your right I did not tell him what to do because (you obviously didn't figure it out) I was addressing your statement.

however I would not tell him to go to the hardware store for a ball bearing.
I would send him to a bearing shop. All balls (sic) are not alike.
I would also tell him to grease the ball and the shaft end when assembling.

As for my remark. Val hit it on the head. Supply and demand is why your piston cost is high, however there really are other paths you could follow to beat the cost but you choose the easy way out.

I bet a nickle you come back and look.

[Macho393]

QUOTE" Not my intention Einstein"...THAT MADE ME LAUGH.............I was thinking maybe Mainjet copied off him in schoool,lol.

[cr27]

Originally Posted by TRexRacing

15/32".Any good hardware store should have one.It'll be cheaper and faster than waiting on the Yamaha dealer.I'm boycotting Yamaha after the pistons for my RZ350 almost tripled in cost last year.$55 to $140 in the space of a week.My next bike most certainly will not be a Yamaha.Oh sorry just a little rant.

I used wiesco for the RZ350 pistons some years ago but I would imagine they are now just as much as OEM.

[VAL]

Originally Posted by Mainjet2001

To bad you give up so easy. Honestly hope you are kidding.

Your right I did not tell him what to do because (you obviously didn't figure it out) I was addressing your statement.

however I would not tell him to go to the hardware store for a ball bearing.
I would send him to a bearing shop. All balls (sic) are not alike.
I would also tell him to grease the ball and the shaft end when assembling.

As for my remark. Val hit it on the head. Supply and demand is why your piston cost is high, however there really are other paths you could follow to beat the cost but you choose the easy way out.

I bet a nickle you come back and look.

There you go TREX, gettin Main all technical on us.

[D tom]

Nice to see everyone has an opinion! I also have. Two years ago Yamaha,Honda and Dennis Kirk were selling 40mm Mikuni's for around $450.This year $130-150 ? I would like to hear some thoughts on the problem at hand.I did grease the pin. But the bike hit pretty hard.I just didn't want to pull the case and basket and kicker and all that. ps My local junkyard here in Denver has nearly any part for any bike cheap.

---------- Post added at 07:03 PM ---------- Previous post was at 06:59 PM ----------

Thats ok But I like Yami's Thanks for the ball size !!!