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670 in 2006 rev 550 mxzx fan

Rev 670 550f

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#46 Ssimard

Ssimard

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Posted 26 February 2020 - 12:21 PM

I have a 05 600h0 with the 670 swapped into it, it idles well and runs well when fully opened up but has trouble in the low and mid range and sometimes bogs out. It is pre-mix. any ideas on what i cant do to make it run better. Previous owner also had cut the carbs to angle them upwards and make them fit. Any idea are very helpful thank you.





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