A forum for owners of Yamaha TTR250 trail and enduro bikes!

Rydasc6102 · Veteran Member

Ok to rev high?

JOHNYBOY · Super Guru

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

Rydasc6102 · Veteran Member

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

ttr steve · Super Guru

Maybe a honda forum would be good for this question?

Rydasc6102 · Veteran Member

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.

TTRfan · Super Guru

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

petenz · Super Guru

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...

.

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

tom13 · Senior Member

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

Rydasc6102 · Veteran Member

Thanks I'll look into installing a tachometer.