Ok, so maybe it wasn't such a good idea to allow my son to change to oil in his Blaster while I was down the street. How was I to know he was going to get real excited and maybe tighten the drain plug "just a little to tight"? I have been trying to help build his confidence when working on "mechanical things".

I guess that Yamaha doesn't do what Ford does with their drain plugs. (My other son sort of stripped out the drain plug in my truck about 5 years ago[of the two of them, he is the "mechanic"]. Anyway, Ford makes the actual bolt weaker than the pan so if you were to over tighten, the bolt strips - NOT THE PAN! Unfortunatley, the Yamaha Blaster has a really, really strong bolt and a really soft (weak) case.

So, here is the problem: The case is stripped out on the Blaster - Does anyone have any idea what size tap I need to use to rethread the hole, and what is the best way to avoid getting any metal shavings into the crankcase? (Now would be a good time to mention that a magnet will not work because the case is some kind of aluminum / pot metal).

Any help you all could provide will be greatly appreciated... We are leaving on an ATV trip in 5 days, (and he would be REALLY upset if he could not bring his quad because of a simple mistake).

THANKS!

 

Check at your local auto part store...
They have oversize self tapping plugs that will fit the hole perfect. these units also have a separate plug in the center so you dont hace to remove the whole unit,

Good luck
Bwgpotts@hotmail.com

 

when i striped mine i took alot of teflon tape and wraped it around the plug than got a rubber washer and put it over the bolt and screwed it in and its held for over 2 months

 

A dealer can fuse in a new hole w/ a new thread and bolt. I forget what they actually call it, but just tell them what happened and they can fix it like new. They charge around 35 bucks. It happens all the time.

 

Weld it kidding Take the plug to a nuts n bolts store and have them find a suitable upsized replacement and a the tap to go with it.

 

Go to you local adn askabout helicoils mthats what we used om my buddies cr250 and lt250 .
he striped them both

 

I had to have the same thing fixed on my KX250 transmission drain plug. The local mechanic I use (a motorcycle repair/racing shop) retapped the hole, then ran clean oil through the case from the fill hole out the drain hole to flush any metal out, and installed a new drain plug for $25.

Good luck,
Lorrin Lee

 

the absolute easiest and cheapest way is to go with a helicoil. you can find them at your local auto parts store.

 

Go to atvconnection home page ,click on "tech" has a very good description of how to make this repair.

 

use heli-coil much better and stonger