Why CRF450 valves need adjustments and how to do the math

Why CRF450 valves need adjustments and how to do the math an explanation with visual demonstrations. "hard to start" "no compression" "kicks easy" "kicks over too easy" "cylinder head off" "What it looks like" adjustment procedure routine instruction instructions Kibblewhite faction mx

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Howto & Style

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• Why
• CRF450
• valves
• need
• adjustments
• and
• how
• to
• do
• the
• math
• Kibble
• white
• stainless
• steel
• adjust
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• crf450
• briansmobile1

[stix746]

Do u think that if u go to stainless steel valves you should double spring them?

[briansmobile1]

@stix746 You should set up the same as before- just have different valve material. The titanium gives better performance in the short run, but is very high maintenance.

[stix746]

I forgot to put in there that it is 40 over.. U said it would lose all it's compression right? So it Probley needs jetted.. What kind of jet kit would u recommend? And thank you for even takin time to try to help me not everyone would do that and I want u to know that I truly appreciate it..

[briansmobile1]

@stix746 I just use whatever brand the carb is.

[stix746]

Hey if my 05 crf450 won't kick start but roll start and run fine but backfire a lil bit and it won't idle.. Does this mean I need the valves adjusted?And possibly need new valves?any info u could give me would be great I'm lost on it

[briansmobile1]

@stix746 It depends on how easy it kicks over. That's the key- watch the beginning of my valve adjustment video. Otherwise it could just be jetted too lean.

[1999chegado]

@briansmobile1 thank you

what do i need to do to fix??

i got a new spark plug new gas and i ajust the vales clean the carb to am mising some thing....

[stix746]

It's not extremely hard to kick and it will kick start every now and then when it's hot..

[briansmobile1]

@1999chegado Sounds like it's jetted too lean for running in winter weather or it's over cooling for the conditions you're riding it in.

[1999chegado]

can you help me out

i have ttr230 wont idle and has to be choked to run..

i clean

the carb any idea and new gas

its hard to start