2016年7月7日 · Hey everyone. Ive been working on rebuilding an 84/85 YZ250 and thought I'd try documenting it, so here I am! This bike came from Don Jones and then my uncle bought it in the mid 80's. So it has a bit of history and sentimental value. Makes the time and money spent rebuilding it that much easier....

2010年6月9日 · I have installed a new FMF Fatty Gold Series pipe on my 1985 YZ250. FMF recommends the following at 70 degrees farenheit at sea level: Main jet - 300 Needle jet - 65 needle - 3rd position Air screw - 1 1/2 turns out Needle - Stock I ride trails in Southern California and rarley get out of 3rd gea...

2008年3月29日 · +1 on the Bel-Ray Gear Saver Oil for the YZ250's tranny. The other one that I've good luck with is Golden Spectro Gear Lube 80W(Transmission/Wet Clutch). These two seem to make my bike shift easier/smoother and the gear box also appears to be a bit quieter.

2018年11月16日 · Hey everyone, Last weekend I bought an yamaha yz 250 from 84/85, and I'm planning to rebuild the complete bike. And would try to documenting the rebuild, so here I am. Let's start with a picture of how I the bike was wen I bought it. The bike was running and shifting to all the gears, and the bik...

2011年11月12日 · Yamaha had two year development cycles, the 84/85 were mostly the same and then the 86/87 were mostly the same as was the 88/89. As long as the intake has the right angle they should all bolt up. I had a 85, 86, and then a 89. The 85 had nice wide flat powerband but didn't really have a top end hit. I loved it.

2011年5月12日 · hey i have a yz85 and want to upgrade to either a yz125 or yz250. but ive done some research and have heard theres not much power difference with the 85 and 125. and alot of people say the 125 teaches you how to ride, but i think an 85 does the same thing because both bikes have hardly no bottom ...

2016年6月7日 · I have an 07 250 that was a beast to hold onto. I believe the previous owner did a little porting. My compression is 250 psig. I suck at riding these things. Sure I can pound a YZ125 but a YZ250 is a different animal. I put on a 13oz stealthy and throttle tamer. I absolutely love the bike and tons of controllable and useable power.

2011年5月24日 · I read your thread on dirtrider.net the day you posted it in mid April, so I know you couldnt have owned your YZ250 longer than about 6 weeks, maximum. You were tossing around the idea of buying a 85, 125 2t, KTM 105, and a TTR 230. That group of bike are all over the board, a couple of quick MX bikes to a 240 lb cumbersome, underpowered trail ...

2019年4月18日 · Hey guys I just picked up a yz250 1984 well I think it’s a 84, It’s got drum front and rear. It had 39x on the bore. What’s throwing me it has a white frame. What’s the difference between the 1983 and 1984?? Thanks.

2017年1月15日 · What carb size is the yz 85's? By Maxoss, January 15, 2017 in Yamaha 2 Stroke. Share