Partzilla Live Q&A with John Talley – September 10, 2021
Partzilla Live Q&A returns with John Talley answering your motorcycle and ATV repair questions.
Honda motorcycle repair once again dominated this session, particularly questions and answers about CRF models. 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.
Partzilla Live Q&A Highlights – Honda Motorcycle Repair Questions and Answers
I have a 2005 CRF450R and it doesn't start up in the first kick. What can be the problem besides the fuel system?
John Talley: I haven’t spent a lot of time starting this one [the CRF450 in the studio]. Most of the time we’ve had it it’s been completely taken apart, but I can speak from experience, I’ve never been able to get one started on the first kick. Especially a high compression machine like that thing, or anything over 400cc. They’re usually a little tough to get going. I mean, the way the carburetor actually pulls the fuel in, the piston goes down and it’s bringing in that air/fuel ratio mix and sometimes it takes more than just a couple of kicks to get it going. … If you’re able to get it started within three or four kicks, I don’t think you have a problem.
I have a 2007 Honda CBR 600RR. I did a full fork service. Oil, bushings, seals. Now when I ride, oil leaks from the dust seal. What could cause this?
John Talley: The first thing that comes to mind is when you replace the main seals as well as the dust seals, when you brought them over the top of the tube, did you protect the top of the tube with tape? I use electrical tape to do it, but what can happen on the upper part of the tubes, you may not be able to see it but if there’s any type of pitting, or if there are any imperfections in the metal … if you don’t have that edge taped going down, that can chew up your seals. I’ve had it happen to me before, so I’m a big believer in taping the fork legs coming down until you’re in the zone where they’re actually running against the seals themselves. So you may want to check that area as well. Chances are the fork tubes are damaged somewhere, either at the top or you were installing the seal or down low and it’s just chewing it up. If you keep putting new seals in there, it’s not going to solve the problem.
Is it possible to use a brand’s Honda CRF rims on a Kawasaki KXF bike? What would my limitation be besides spacers?
John Talley: Alright, as far as the rims themselves, they don’t care. Excel makes just about everybody’s rims, but it’s the hubs that make the difference and I assume that’s what you’re talking about, trying to use somebody else’s hubs on your machine. But there's also alignment issues, potentially with the sprocket. And depending if you’re talking about the front and the rear where your caliper is going to line up, so there’s a whole lot of different variables that are probably not going to play well together. You can get out your measuring tape and your micrometer. But unless somebody’s giving you a set of rims, I would probably just go through the hassle of just taking the rims off whatever hub they were on and transferring them over to your machine. … The ones we’ve got on the [CRF450] behind me are Excel rims with Talon hubs. But the real trick is that I didn’t build those. I actually used a company called W, and I told them what I want and they built the combination I wanted for rims, hubs and spokes. Pretty cool, for once I didn’t have to lace one up.
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