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Discussion Starter #1
Hey guys. I bought a 2010 848 with only 30 miles about a month ago. I've noticed that the bike doesn't crank up the easiest. It takes a few turn overs to crank up and during that process that starter sounds weak? Or maybe it's time for a new battery? Any suggestions?


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Battery if it hasn't been on a tender and the bike sits a lot or for a while. My guess.
 

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Crack the throttle open a bit when cranking. It helps get fuel past the throttle plates, which close completely on these.
 

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Closes completely? Wow! Did not know that. Okay. I'm thinking about replacing the battery soon anyways. I'll just feel better knowing my battery is brand new and reliable. And yeah, I noticed when I opened the throttle a little that it cranks up easier. I just thought with it being fuel-injected that that wouldn't be necessary. Guess not.


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Let me know if the battery makes a difference for you I've wondering the same thing about my 848.
 

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Closes completely? Wow! Did not know that. Okay. I'm thinking about replacing the battery soon anyways. I'll just feel better knowing my battery is brand new and reliable. And yeah, I noticed when I opened the throttle a little that it cranks up easier. I just thought with it being fuel-injected that that wouldn't be necessary. Guess not.


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The idle air comes through an ECU controlled valve that bypasses the butterflies, and the injectors are above them. So it's difficult to get enough fuel through to start quickly. Another alternative would be to hold the throttle open when switching the ignition on so the priming shot goes down into the intakes.
 

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Does the 848 series have a throttle idle (rev adjustment on left control) like the 749?


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Does the 848 series have a throttle idle (rev adjustment on left control) like the 749?


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No... fast idle is controlled by the ECU
 

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I had the same issue on my 848. The local mechanic synced the TBs, reset the TPS but still the problem persisted. Changed battery to a ballistic 8 cell and she starts as soon as I touch the button everytime.
 

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Have reputable garage check your battery and if it checks out OK, then have them give it a proper full charge. I found with my Battery Tender Jr. that it didn't fully charge my battery then maintain it, it would only charge the battery %80 or so then maintain it at this level. Not good.
A charger called a "Battery Minder" was suggested and so far I found it fully charges my YUASA and maintains that charge.
 
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