RC600R, I found 10hp more.....

jori · Post by **jori** » Thu Sep 14, 2006 6:45 am

at least the feeling was so great....

Yesterday I make little servising for my RCR. A new original foam airfilter and brand new teikei carbs.

After that the first test run was interesting. Idling is smooth and steady. Full gas acceleration is much much more powerfull than before, without any flat spot over 150km/h to the speedo with 14/48 gearing.

But riding with steady half throtle is terrible. Engine running is not smooth, it is really jerky, unstable.

Jettings are standard RC600C settings, mix screw is 2.5 round open. Any ideas what to do next? This RCR is -93 model with e-starter and same airbox than RC600C. Exhaust is still original. Only modification is little bit opened air intake rubber.

Old carbs was also with standard settings, except mainjet was little bit bigger (even too big I think). At least fuel consumption was high, 6.5-8.5l/100km. With those carbs half throttle riding was smooth (50-100km/h), but hard acceleration was little bit lazy and around 100-140km/h speed was not good (probable too rich mixture).

All comments are wellcome.

Jori

jori · Post by **jori** » Thu Sep 21, 2006 7:23 am

More playing with carbs...

Yesterday I make comparison between old and new carbs and found only few differencies.

-part no24 (see pic) old is stamped "2" and new carb it is stamped "1"
-part no46, old spring is 5mm shorter than new

Can anyone say what is those differencies meaning?

Also old secondary carb needle was little higher position(between 2-3 notch)

Everything else is same (except the main jets). Old needles are little bit worn.

What else could make the jerky behaviour? Fuel comsumtion is now around 5-5.5l/100km, sounds more normal than 8l/100km!!!

Regards,
Jori

Post by **Joachim** » Sat Sep 23, 2006 7:26 am

jori wrote: Old needles are little bit worn.

Maybe this is the reason.

ciao joachim