New here need help - Yamaha YFZ450 Forum : YFZ450, YFZ450R, YFZ450X Forums
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post #1 of 22 (permalink) Old 04-17-2019, 07:51 AM Thread Starter
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New here need help

Hey guys I am new here and I want to buy a YFZ450 or a YFZ450R which one is faster and which one has more torque then which one has more horsepower. Please and Thank You
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post #2 of 22 (permalink) Old 04-17-2019, 10:00 AM
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It really depends on how much you want to do to them and what you want to get out of them. What type of riding you are doing, etc.

2017 YFZ450R XC Setup - O’Neal Racing, Leatt, 4Arm Strong, Engine Ice, ASV Inventions, Ryno Power, ODI Grips, AMSOIL, Sunstar Engineering, Braking, Acerbis Plastics, Kenda Tires, SCOTT, Peak Racing Products, RadicalX

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post #3 of 22 (permalink) Old 04-19-2019, 08:39 PM Thread Starter
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Put in a drag lawnmower with most horsepower from a YFZ450 or a YFZ450R
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post #4 of 22 (permalink) Old 04-19-2019, 10:29 PM
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Go carb. Less electronics and easier/cheaper to tune.

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post #5 of 22 (permalink) Old 04-22-2019, 02:37 PM Thread Starter
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Which makes the most hp stock then which makes the most hp modified.
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post #6 of 22 (permalink) Old 04-22-2019, 02:44 PM Thread Starter
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Is it possible to convert it from a 4 stroke to a 2 stroke.
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post #7 of 22 (permalink) Old 04-22-2019, 04:00 PM
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You would have to swap out the engine entireley and have some fabrication and welding skills. NOT A PROJECT FOR THE AVERAGE JOE. I recommend a suzuki quadzilla rebuilt 500 engine. THAT THING WOULD REALLY SCREAM !!

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post #8 of 22 (permalink) Old 04-23-2019, 07:14 AM Thread Starter
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Which is better YFZ450 or a YFZ450R or a Suzuki QuadZilla
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post #9 of 22 (permalink) Old 04-23-2019, 08:30 AM
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Which is better YFZ450 or a YFZ450R or a Suzuki QuadZilla
The quadzilla needs some work done to it so its reliable. And only a few people are doing that work.

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post #10 of 22 (permalink) Old 04-23-2019, 08:59 AM Thread Starter
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Which makes the most horsepower stock then modified the YFZ450 or a YFZ450R or a Suzuki QuadZilla

Yoji Holmes
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post #11 of 22 (permalink) Old 04-23-2019, 11:28 AM Thread Starter
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Which is better for drag racing stock YFZ450 or a YFZ450R or a Suzuki QuadZilla then which is better modified.

Yoji Holmes
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post #12 of 22 (permalink) Old 04-23-2019, 11:32 AM Thread Starter
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Could you guys help me with sprocket size because I want the highest top speed possible from the YFZ450 or a YFZ450R or a Suzuki QuadZilla

Yoji Holmes
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post #13 of 22 (permalink) Old 04-23-2019, 11:46 AM
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Considering a yfz450 walked my yfz450x I’d get a yfz450 put a 15/36 rear sprocket will give you top speed and get an 08 with the oil mod done and can mod if not already done. Fuel injection is nice but a lot heavier and a lot more complicated taking out of an already running atv.. kind of pointless putting in a lawn mower as it’s not made for it and will Be a ***** in a half rerouting everything for the lawn mower. I’ve done it to mine with a. Cr125 and it was a pain just getting the mounts right. Your looking at a lot of money after buying a 450 depending if it’s perfect running condition and no probs later on.. lot of $$$$
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post #14 of 22 (permalink) Old 04-23-2019, 11:49 AM Thread Starter
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Which is the absolute best between the YFZ450 or a YFZ450R or a Suzuki QuadZilla

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post #15 of 22 (permalink) Old 04-23-2019, 12:00 PM
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They are the same.. the R is better because it doesn’t have an external sump pump for the oil and ready to race. Some people like yfz450 cause you can fill it up and not worry about being low on oil and it runs cooler. But if your putting it in a lawn mower get a 08 yfz450r ( no oil sump pump) it’s internal, and easier to mount.. if your set on. Blowing a lot of money. Might as well do it to an atv besides an lawn mower.. you’ll go a lot faster too with suspension work and big 3 it’s all about suspension man. But up to you if you have all the money to do all that fabricating and such lol
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post #16 of 22 (permalink) Old 04-23-2019, 12:09 PM
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The carb YFZ is cheaper to go fast in a straight line. The fuel injected model is more comfortable stock and plush with the marshmallow settings.
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post #17 of 22 (permalink) Old 04-23-2019, 12:21 PM Thread Starter
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Which is the best between YFZ450R or a Suzuki QuadZilla

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post #18 of 22 (permalink) Old 04-23-2019, 12:22 PM Thread Starter
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Which is best between YFZ450 or a Suzuki QuadZilla

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post #19 of 22 (permalink) Old 04-23-2019, 12:23 PM
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post #20 of 22 (permalink) Old 04-23-2019, 12:25 PM Thread Starter
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Which is the absolute best between the YFZ450 or a YFZ450R or a Suzuki QuadZilla fully modified.

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