2005 m7 dead top end

[Blk88GT]

This one really came back from the dead!

I ended up tuning the sled with the boondocker box to get it to run. The sled had twin pipes at the time and I spent a lot of time and research getting it to run properly.

In the end, the best thing I did was take the twin pipes off and put the stock stuff back on. I've got over 1500 miles on it since then with no issues whatsoever.

If it's all stock and hitting a wall at 6800, check your power valves. Make sure they're clean, the cables move freely and are adjusted correctly (your service manual has the procedure) and that the cables are still attached to the servomotor properly.

[Ruegsegger]

Haha ya i searched the topic and didn't realize how old it was till after i posted. Thanks for the tip on the powervalve and yes my sled is stock except for a can.

[moyiesledhead]

Put the stock can back on and try it. Haven't seen too many aftermarket cans that actually helped an M7.

[Bryan m]

[QUOTE=hardy;32188]hey i was just wondering if any buddy had a answer to my problem? I have a 05 m7 and my top end has a really bad bog for a few seconds than it seems to clean it self up and will take off to around the 8000 R's area the bog usaully starts around the 6500 range when i put it down? any ideas would be great.. thanks[/QUOTE drop your needles 1slot ,whas happening it's get'n too much fuel in the mid then clears when its wide open...try drop'n them 1slot down. if it gets better go 1more.. it worked on my rmk...if it only revs to 7800rpm its too lean

[maxwell]

Efi.....