2008年12月31日 · If you ride a YZ stock, without applying any of the tuning advice you can find here, you will be pretty disappointed with the fuel mileage of the (100% bone stock,) YZ250. As noted above, getting the jetting just right, which takes some effort, & float height adjustment, are essential for good fuel economy. Setting your cyl. head sqush ...

2021年2月11日 · Yes, standard YZ250 tank plus the reserve petcock. HERA’s post above about more fuel = more power makes sense to me. I do like the way it ran. If after more testing, fuel consumption becomes a limiter in the trails I can select or forces a return to the car that limits my trail time, I will go another route.

2021年2月8日 · Ive always loved the versatility and fun factor a yz250 2 stroke has (track/woods/ whatever) and wanted more power- plain and simple- I own an Af500, a '15 yz450f and have had bikes for 20 years- I ride track intermediate and woods as fast as some of the better guys- a 450 in the woods was a tank- went right back to the yz after less than a season.

2013年2月23日 · Read and compare owner reviews & ratings of Yamaha YZ250 1989. Vehicle specs, photos & video, pricing, and more!

2020年5月13日 · Ok, I am aware of the differences between the 250 and the X, and know there are a bunch of posts about it, head, porting, transmission, porting, suspension, kickstand, CDI, power valve, pipe. Problem is saying the "porting and head is different" doesn't answer the questions I have. I am beginning...

2008年7月26日 · Also, keep in mind that these indicator-advance specs are unique to the '99-'09 YZ250 because of it's. flywheel-stator relationship, stroke, rod length and CDI advance programming. The results:-The whole area behind the flywheel is the moveable stator

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.

2025年2月4日 · Hi, just bought a brand new yz250 2025 not from yamaha but some other dealer. The dealer says the bike 2025 and looks like aswell came with all the plastic wraping and stuff but when i took a look at the vin number when i came home it was a 11 digit vin number (CG44C-011725), searched on google which year is it to confirm and it says 11 digit ...

2013年4月29日 · I have a 2011 YZ250 with about 59 hrs on it. Today the lower rod bearing failed (I haven't taken the motor apart yet, but I KNOW that sound/symptoms , and lower rod bearing is the cause). I rebuilt the top end around 42hrs and everything looked great. I run amsoil at 25:1. Granted, I ride motocro...

2016年6月15日 · 1998 YZ250, rebuilt from the ground up, front plastic conversion. FMF fatty piped hooked up to an FMF Turbinecore 2. High flow front fender, no toil super-flo air filter, cooled with engine ice.