Partzilla Live Q&A with John Talley – June 03, 2021

Partzilla Live Q&A is back again with John Talley answering your live motorcycle and ATV repair questions. 

Usually Honda ATV questions rule the conversation, but in this week’s session, repair questions for what John calls “The Big 4” (Honda, Kawasaki, Suzuki and Yamaha) motorcycle manufacturers shared the spotlight. Check out some excerpts from Partzilla’s latest live Q&A session below, and tune into our YouTube and Facebook channels every Friday at 3pm Eastern for the next edition. 

NOTE: This edition of Partzilla Live Q&A took place on a Thursday, as will the next one.

Partzilla Live Q&A with John Talley 06-03-21

Partzilla Live Q&A Highlights – “The Big 4” Motorcycle Repair Questions

Honda Motorcycle Repair

Is it true that if I upgrade my 2007 Honda CBR600RR air filter to a K&N, I have to get the fuel commander installed too?

John Talley: Not necessarily. I’ve seen plenty of machines come through and either they’ll do just a K&N filter or maybe a slip-on exhaust. Your ECU has a certain percentage of fuel trim that it can adjust to that would get it in compliance as far as your air fuel rate ratio. So just go into a K&N air filter. Now your machine can compensate for that. I mean, that’s what the ECU does. It learns from that little 02 sensor down in your exhaust header pipe, and it’s going to adjust accordingly. 

Kawasaki Motorcycle Repair

Any suggestions on how to fix a jerky throttle on a 2018 Kawasaki Ninja 650? 

John Talley: Ok, so that probably has the push-pull situation on your throttle, and what you’re probably experiencing on it now that you have a little bit of mileage on it is just slack in the throttle, and that’s making it feel jerky. So there should be an adjustment in line on the cable itself, and I think it’s on the pull side, and you’re just going to need to break those two nuts loose and just tighten it up to where there isn’t that much play. Now, don’t overtighten it, because that’s going to stress out your cables and/or pull the throttle plates, and then you’ll have unintended cruise control. But it sounds like you just need to adjust your cables. And I can’t remember which unit we’ve done that on … maybe it was on that KLR 650. … Maybe you can apply that same technique to adjusting your cable.  

Suzuki Motorcycle Repair

The ECU on my 2002 Suzuki GSXR 1000 blew up, so I bought a new one and it did the same thing. One mechanic told me it could be the regulator-rectifier. Any advice?

John Talley: I would be of the opinion that it is your regulator-rectifier, and we’ve done a bunch of different videos as far as how to test one. I mean, if you do a static battery test that’s around 12.6, 12.7, then you start it up and rev it up a little bit and it’s going past 14 ½ DC volts, you’ve probably got a problem. I mean, if it’s sending out voltage 15, 15 ½ , 16 ,17. Yeah, that’s what ate your ECU. You definitely need to put a multimeter on there and see what it’s doing before you spend several hundred dollars more to get another ECU. 

Yamaha Motorcycle Repair

Do you sell a clutch basket for a 2006 Yamaha R1?

John Talley: I would bet that we do, and if that happens to be an NLA (no longer available), I would hazard to guess that we carry a Wiseco unit. So either one. If you’re unsure which way to go, give our call center a call and we can guide you to either or both products. And then you can make a decision as to which way you want to go. 

Want to see more live repair questions answered? See all of Partzilla’s Live Q&A sessions here.  

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