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Post Info TOPIC: Ok to rev high?


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Ok to rev high?
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hi everyone. I just got a honda cb250 nighthawk and im wondering if it is ok to keep the revs up fairly high since it only has 5 gears. can that engine handle high revs for prolonged periods of time? Thanks.



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not if you are in the redline on the rev counter for long periods if so go down 2 or three teeth on the rear sprocket or one up on the front

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My bike doesn't have a tachometer. I just go by how it sounds. How can I tell if it is in red line,

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Maybe a honda forum would be good for this question?



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I have been and am currently looking for a 250 nighthawk forum but I can't seem to find any. I posted here because it is just a general engine question. It may be different for hondas, but if you didn't have a tachometer on any bike how could you determine the rpm.

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It's a seat of the pants thing. If you feel uncomfortable with the high revs then, as John suggests, gear it up a bit.

I think the TTR has a rev limiter built into the CDi but am not sure. The engine is designed to rev high but I would feel uncomfortable riding my TTR wide open throttle on the road with its trail gearing....

Brian



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Not sure what motor is in your bike...
I had a Honda XR250 tornado they had the CBR250 motor...six speed , DOHC , single...
at 100kmph it was spinning at 6200rpm with the standard trail gearing...
it would do that all day on the road with out issues..

I put a cheap tac on it... had a wire that wound around the spark plug lead a few times..

have a look on e-bay they are real cheap...



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-- Edited by petenz on Wednesday 20th of June 2018 10:17:06 AM

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Bikes... 06 TTR250 / 09 XT660R / 1977 Montesa Cota 348 MRR / 1979 Montesa H6 125 Enduro...

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Google Translate ---- I have the same, it's good. Shows turnover and working time.

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Regards grandpa Tom TTR 250

POLAND



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Thanks I'll look into installing a tachometer.

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