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#8420

Stephen gleason
Participant

<span style=”background-color: rgba(255, 255, 255, 0);”>Hello Ian

I have had a chance to use a Dyno
To test my cr250 based engine after getting a good baseline. I put carb (38mm mikuni )on flow bench got a baseline. Then taper bored and worked the bell area. To a 20% increase .
Re installed on engine and. Reran  the pulls. And the graph layed right over the first runs
So next I put a 44mm on just to see.  And it did same!!!
Now I’m confused  (I have V force reeds).  Is that the limit of motor or is there a restriction I need to be looking for?   Any ideas
Thanks in advance
Stephen Gleason
Sent from my iPad</span>

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