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.

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.

2017年12月29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.

2007年4月18日 · A lot of people have said the stock pipe is different from 05 to 06.. Internally the engine is the same since 2003.

2024年1月20日 · are you doing hard enduro, with a rekluse?. i tried that combo again last weekend , and realized (again) it's a really bad idea to not have the ability to rest the bike against the engine braking, while repositioning it on a failed climb. i do have a lhrb setup, but getting leverage and shoulders in the right places means i can't hold the lhrb all the time. the rekluse …

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

2014年4月16日 · 2012 Yamaha YZ250: If Yamaha would invest in new plastic and a better exhaust pipe, the YZ250 would be reborn. As it sits now, it is old looking and gives up easy horsepower to the KTM 250SX. 2007. The big change for 2007 was the swap to the N3EW needle that most hardcore racers had been using in 2006. The N3EW needle brought about a big ...

2021年3月6日 · I'm starting this thread to serve as a place to ask questions about Apex Technical Innovations cylinder heads (yz250, yz250x, yz125, yz125x). Picking the right dome or domes for you is an important part of making sure your bike is perfect for you and I'm happy to serve as a resource here or in direct messages.

2010年9月26日 · On my 2007 yz250 i run stock gearing which is 14 front and 50 rear. Maybe try a 14 front and a 48 rear for some more top end but you still will have a lot of bottom end. I run a renthal oring chai with a front sunstart sprocket and a aluminium 50 tooth renthal rear sprocket. Both are awesome.!!