Partzilla Live Q&A with John Talley – July 1, 2021

Partzilla Live Q&A comes to you with another weekly edition, in which our resident powersports vehicles pro John Talley answers your motorcycle and ATV repair questions.

A wide array of topics was covered this week, including motorcycle and ATV oil-related maintenance and repair. 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 with John Talley 07-01-21

Partzilla Live Q&A Highlights – Oil and Maintenance

What oil is recommended for a Yamaha R6 after replacing the bearings and doing a break-in?

John Talley: Most of the time your break-in as far as your oil goes has to do with the cylinders, because you’re trying to get the rings to seat in there. Now if you just did the bearings and you didn’t have to put in new rings, you should be able to go to a semi-synthetic, and that’s what I would recommend. Now if you did have to do any piston or rings or cylinder work on it, then you want to go with a conventional oil and maybe add in a hardening additive so everything will start to meld together as it should. But if you’re just doing the bearings, I would say go straight to the semi-synthetic and you won’t have to worry about using a standard oil

Any recommendations for maintenance on a Honda TRX 400 EX?

John Talley: Well, Honda has their maintenance schedule in the owner’s manual, but my rule of thumb is … after a really hard weekend at Durham Town or something like that, I’m going to go ahead and change the oil and of course go after the oil filter. That’s really all you have to do with these machines is keep the oil changed, the air filter cleaned, and on that particular model keep the chain at the correct tension or adjustment and you’re good to go. And it’ll let you know anything else that’s coming up when you do just a pre-ride cursory check at your brakes and see if your pads are getting too low. I mean, if they’re down to the thickness of a credit card, you need to get rid of them. As far as the maintenance, basically every 5-6 hours sometimes if I’m really riding hard for a weekend two days in a row, I’m going to go ahead and change the oil. Oil is cheap, rebuilding an engine is very expensive. 

The oil drain plug on my Honda Foreman 450 is stripped out. Any advice? 

John Talley: Common tale. … Do a search for a drain plug repair kit. It’s basically for drilling out the threads and the kit will have a new set of threads you get and lock into place. I also would recommend in that particular application, using some red threadlocker around the outside of the threads, not the inside, to really get it to sit in there correctly. Because I would imagine you would want to avoid having to pull the engine out and replace your cases.  

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


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