2018 YZ450 reliability

Goon126
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Goon126
Was curious from those of you that have put a lot of hours on the bike about the problems you have ran into if any. Just want to know what things I can look out for or try to prevent. How many hours do you have on your bike and what fuel and oil do you use?

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Hudd_421
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Hudd_421 12/18/2019 11:09am
12/18/2019 11:09am
in 2018, no 450 will have any reliability issues provided you keep the filters clean and change oil every 4-8 hours.
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pelosi826
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pelosi826 12/18/2019 12:19pm
12/18/2019 12:19pm
My 18' was a lemon. Previously had a 15' YZ 450 with 80 hrs and no issues. One top end was done, that's it. My 18' YZ 450 had issues at 4 hrs. Countershaft sprocket seal leaked. at 10-11 hrs the starter clutch went. at 20 the engine grenaded. Oil squirter broke off, losing oil pressure and destroyed my whole engine.
Motofinne
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Motofinne 12/20/2019 1:44pm
12/20/2019 1:44pm
My 18 had 60 hours with no issues, my 19 had 40 hours with only the starting button breaking once.

Get the Twin Air Powerflow kit and change the engine oil and filter every 4 hours and you're set. Great bikes!
Goon126
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Goon126 12/20/2019 8:20pm
12/20/2019 8:20pm
Motofinne wrote:
My 18 had 60 hours with no issues, my 19 had 40 hours with only the starting button breaking once. Get the Twin Air Powerflow kit...
My 18 had 60 hours with no issues, my 19 had 40 hours with only the starting button breaking once.

Get the Twin Air Powerflow kit and change the engine oil and filter every 4 hours and you're set. Great bikes!
Starter button get water in it?

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MNd23891
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MNd23891 12/26/2019 10:39am
12/26/2019 10:39am
My 2018 was great. 40 Hrs, no issues whatsoever and I'm pretty hard on bikes. Just do really good maintenance and you will be set. I changed oil every 3 hours, filter every day of riding, sometimes twice a day because they do seem to dirty up filters faster than other bikes.
adam8781
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adam8781 1/1/2020 5:43am
1/1/2020 5:43am
my pro class bro travis has 85-90 hours on his 18 zero issues. he is hard on it revs it to the moon and is pretty lax on servicing it.

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