2008年5月3日 · The 99 YZ125 is the fastest stock 2T 125 made, hands down thats why i bought one, but i was coming from a rm125 that was a pastrana arenacross bike, and hands down the pastrana bike was a TON faster way to SCARY for me, so thats why i sold it and got the YZ i wanted fast but not INSANE!

2021年8月10日 · are in the 45+ hp range all day long, but its a high rpm type of power, ...not so good for woods riding. Pipes are the magic / final point of how any 2 stroke runs, no matter what other porting, head, fuel, carb, or programmable ignition is used. Have seen high hp gp tuned motors add or lose 5 hp, just by changing pipes.

2020年7月16日 · my yz125 is definitely more crisp and powerful (VForce 4 and procircuit pipe and silencer) Pro circuit pipe and silencer also spice up the power again jetting the key.(pilot mostly) 2019 yz125 at 2200ft and 19c right now and running 35 pilot Air screw 1 3/4 , needle 44-74 2nd clip ( same as 2008 43-74 3 rd clip)and 410 main

2016年7月29日 · So I was reading a thread earlier and they were saying stock 1998 yz 125 motor gets 40 hp. Now wether true or not they're still pretty fast. I own a 1999 yz 125 and could not find any info on how much hp it has stock. The bike also has a .002 over bore and I'm wondering if this bike could be push...

2007年1月1日 · The YZ125 is a two stroke competition motocross bike with over twice the peak horsepower and state of the art suspension. If you intend to race, it is the only choice. If you plan to trail ride, the TTR is a fun reliable play bike.

Read and compare owner reviews & ratings of Yamaha YZ125 1994. Vehicle specs, photos & video, pricing, and more!

2013年12月22日 · The best engine modification for a yz125 is a 144cc bore and stroker kit, I know ATHENA makes a 144 top end kit with no crankshaft modification but only adds a couple horsepower to the stock engine, which is not really worth the price of the kit considering you have to modify the crank case.I have checked out a couple companies that make bore ...

2019年7月30日 · I have also owned a KTM 125sx 150sx and a older YZ125. If you're unfamiliar with what a 125X is go look it up then come back. I'm not going to go over all the changes they made vs the regular YZ. Seeing the bike in person it looks good. Doesn't look really any different except for the factory kickstand. Fit and finish is typical Yamaha meaning ...

2006年5月3日 · just curious, but how much hp would a 98 yz125 w/ PC pipe and silencer, wiseco piston, boysen reeds, and uni air filter make? Oh, and yes it has been rejeted. thanks.

2013年10月4日 · Found a YZ125 motor that had. been used in a shifter kart, for. dirt cheap, and have a cylinder / top end off of a GP roadrace bike. Will take quite a bit of fabrication. and mods, build a custom pipe...but the power gain should be. well worth it. The GP bikes make 50 to 56+ hp, but this motor will get the power. curve shifted for more low end.