Tokyo Marui type 89 Burst fire goes Auto.
 

Just bought a Tokyo Marui type 89 recently. I notice a huge airseal leak from the piston head, after the fix and once I put it back together. My 3 round burst turned into full auto! Any ideas, I know it's a rare gun, but I've seen a couple people with it.

YouTube - Type 89 Burst Mechanism

Maybe that will help?

OR you can just by a better gun. ;)

You guys aren't helping :(

In another video I saw,it was mentioned that it is a mechanical 3 round burst not a electronic. I would check that all the gears are clean and moving freely.

From the symptom you described, I think the small spring part which makes it 3 point burst is not placed properly, or simply crashed.

If the part(which is on outer shell of mecha-box) does not work or placed properly, 3 rounds burst is going to be full-auto.

Check out the top picture of the page below, it's pointed by red circle in the pic.
If you read Japanese, you get more help though:D

http://masahisa.at.webry.info/200810/article_12.html

good luck!

Thanks man I'll try this on Saturday when Kingsix solders my new wires :D.

Your username sounds like my name Cooney.

Kuney to Cooney,

I'm happy if it helps :D.

I, relatively newbie for ASC should have checked other key players in here...lol

Say hey to kingsix!