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Why You Should Never Lug Your CBX Engine

Posted: Fri Aug 18, 2023 1:39 pm
by Duffey Lake rd.
Why You Should Never Lug Your Engine
https://www.youtube.com/watch?v=soJea7xEt-8

In this informative YouTube video, Jason explains why you should always downshift before accelerating.
Opening it up during low revs will cause the engine to be less efficient, generating more heat.
You can get pre-ignition (glowing carbon deposits peeling off and bouncing around inside your combustion chamber) and then with uneven piston pressure, the pistons may slap against the cylinder wall.
A former CBX racer, Steve Dick, also told me to always keep my revs up (around 3.5-4K or so) even while driving around at low speeds.
He said the combustion chambers will carbon up and your header pipes can even turn blue if you don't.
Yes, I'm preaching to the choir for most of you, but for others, good to know.

-Scott

Re: Why You Should Never Lug Your CBX Engine

Posted: Sat Aug 19, 2023 9:15 am
by CBX-tras
CBX's are race bike inspired. Drive it like one.

Re: Why You Should Never Lug Your CBX Engine

Posted: Wed Sep 13, 2023 12:51 pm
by Duffey Lake rd.
Yes, blow the carbon out of it.

Motorcycle Riders: You're Using the Wrong RPM
https://www.youtube.com/watch?v=zhUI7MWE_Fc

Re: Why You Should Never Lug Your CBX Engine

Posted: Fri Apr 19, 2024 10:36 am
by Syscrush
Interesting info - thanks for sharing these.

Re: Why You Should Never Lug Your CBX Engine

Posted: Sat Apr 20, 2024 2:43 am
by Dynamohum
CBX-tras wrote:
Sat Aug 19, 2023 9:15 am
CBX's are race bike inspired. Drive it like one.
And they’re much more fun to listen to above 7-9,000 revs. 8)

Re: Why You Should Never Lug Your CBX Engine

Posted: Sat Apr 20, 2024 8:37 am
by CBX-tras
There was a Yamaha store here in town several decades ago that had race bikes like the TZ750.
On the tach they had a label that said "Down to go UP".

In other words, downshift to go faster.

Re: Why You Should Never Lug Your CBX Engine

Posted: Mon Apr 22, 2024 1:43 pm
by Syscrush
CBX-tras wrote:
Sat Apr 20, 2024 8:37 am
There was a Yamaha store here in town several decades ago that had race bikes like the TZ750.
On the tach they had a label that said "Down to go UP".

In other words, downshift to go faster.
Are you sure it wasn't just a reminder that they had been converted to GP shift pattern?