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kingMaris Added a reply to 2021 Yamaha yz450f exhaust heating up
9/4/2023 7:10pm Thank everyone for the help. So here is my update so I was starting to think maybe that’s just how these Yamahas are home so before I finally took it out on a ride, I I switched out the plug for one that is more suitable for hot weather since it’s been really hot lately so after I change out...
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kingMaris Added a reply to 2021 Yamaha yz450f exhaust heating up
8/18/2023 9:02am Replaced cam chain now it lines up better but still getting hot
Mr. Robinson Liked a reply to forum topic 2021 Yamaha yz450f exhaust heating up
8/18/2023 9:00am
If the exhaust cam is too advanced, then that's very likely why you're getting hotter at the exhaust. You need to go back and figure out why it's not lining up. Maybe a new cam chain.
This forum topic has 14 replies.
kingMaris Added a reply to 2021 Yamaha yz450f exhaust heating up
8/5/2023 12:00pm that’s how it was on the bike when I got it.. but with obviously the rest of the parts, so I replaced the cam cover or valve cover whatever you wanna call it the cylinder head and that intake cam. so once I got these parts and installed them and cleaned the whole system to get out any metal and...
kingMaris Added a reply to 2021 Yamaha yz450f exhaust heating up
7/29/2023 5:09am Ok cam caps are to spec 7.4 ft lb, cam chain has good tension I have not checked water pump and oil pressure cud it be that exhaust cam I couldn’t get both cams to line up the exhaust cam is like a tooth below the mark I can not get it to be in the right position once I...
kingMaris Added a reply to 2021 Yamaha yz450f exhaust heating up
7/28/2023 2:36pm I get that I’m aware but my 2014 crf 450r dose not get hot close to as fast as my yz. But it’s not the more the is hot it’s just the exhaust header
kingMaris Started a new thread 2021 Yamaha yz450f exhaust heating up
7/27/2023 12:40pm I have a 2021 Yamaha YZ450F I got the bike with damaged to the cylinder, head and valve cover along with one of the cams was broke so after I got a new cylinder, head, a new valve, cover, and a new cam and put everything together. The bike start and I wrote it up and down the street fine...
This forum thread has 14 replies.
Paw Paw Liked a reply to forum topic Shock Spring rate
7/25/2020 6:16am
5.2 PawPaw
This forum topic has 2 replies.
kingMaris Started a new thread Shock Spring rate
7/25/2020 12:34am I have a 2014 Honda CRF450R with stock rear suspension I’ve been trying to set my Sag but can’t get it right because The spring rate it’s not right because I weigh 140-145 I went to race Tech to get the right spring rate my Stocks bring rate is 5.4kg/mm And Race tech said my spring rate should be 5.19...
This forum thread has 2 replies.