I've finished the "build" part of my Kawasaki EX-250 fuel injection conversion. Now I'm beginning the process of tuning and getting ready to start it for the first time.
Because my EX-250 is a small engine (250cc) it's got a pretty large RPM range, it idles at around 1,300 RPM and red lines at 13,500 RPM. I'm trying to build the AFR Table but I haven't got any motorcycle specific AFR table examples.
Does anyone have any advice, examples, or information about things like techniques for setting up AFR Table RPM bin values on a small engine with a large rev-range?
Setting AFR Table RPM bin values for motorcycle?
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Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Forum rules
Read the manual to see if your question is answered there before posting. If you have questions about MS1/Extra or MS2/Extra or other non-B&G code configuration or tuning, please post them at http://www.msextra.com The full forum rules are here: Forum Rules, be sure to read them all regularly.
Re: Setting AFR Table RPM bin values for motorcycle?
All 4 stroke engines are the same. Reguardless of size. Different engines make best power at different ratios. (design, state of tune, etc)
Alot of atv/ bike people have good luck just setting the table at 12.8-13-13.2 across the board. You can lean out the cruise area to gain some gas milage if you want. And decel if you have any pops or stumbles. (shut off decel fuel cut when tuning here) But if you test from 12.5 to 13.5 across straight the table and use whatever ratio gives you best power. Best idle ratio seems close to this magic number too.
Alot of atv/ bike people have good luck just setting the table at 12.8-13-13.2 across the board. You can lean out the cruise area to gain some gas milage if you want. And decel if you have any pops or stumbles. (shut off decel fuel cut when tuning here) But if you test from 12.5 to 13.5 across straight the table and use whatever ratio gives you best power. Best idle ratio seems close to this magic number too.