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I have a Honda H6522 with a 3-cylinder diesel. It starts every time regardless of the temperature. Then after running for about 5 minutes, it starts to misfire. It sounds like it's only firing on 2 of the 3 cylinders. It rattles and shakes for anywhere from 3 to 5 minutes. Sometimes it stalls. When this happens, I just let it sit for a few hours. When I come back it starts, then runs rough just for a few seconds then runs smooth again. After that it runs well all day. I've cleaned the fuel filters and fuel is being pumped OK. If anyone has experienced this, please let me know what might cause this.

Honda H6522 diesel misfiring
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Replies 2 Post by yodamon

I'm not sure about your specific problem, but you need to get the service manual for the 6522. If you ever have someone work on it, they will need it.
I have a 6522 I bought used back in 2001. I really haven't had any major problems with it, but have had to change out some electrical parts.
A good source for the manual and parts is:
Brian Baker
Formula H Motorworks in Middletown, New York
845-344-5511
He specializes on Honda tractors and helped me a lot.

Another place is Boats.net.
They have parts diagrams and still sell parts for the 6522.

Just be warned...Honda parts are sky high.

If you need specific info on the hydraulic system, I can copy some of the pages for you.
Just contact me at 904 287 9515
Greg

Help with a Honda 6522
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Replies 3 Post by yodamon

I know your post was old, but I do have the manual pages you were asking for.

I have a 6522 and it turns over, but won't fire. It seems to be getting fuel, but I'm not sure how the fuel control unit is supposed to work. If you have any suggestion on where to start looking, please let me know.

Thanks

Greg

Honda 6522 diesel
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Replies 3 Post by yodamon

Did you ever get the information you needed on the Honda 6522?
I have one and I just completed some body work and a complete paint job. I know how hard it is to find parts and manuals. If I can help...just email me at greg47@comcast.net.

Info on Honda 6522 Compact Tractor
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Replies 16 Post by yodamon