Flat spot 3600rpm ish

[fozziegsa]

Hi all, picked up my 1150GSA 05 model on Saturday. What a fantastic bike.
Stopped off at the Ace Cafe on the way back home and saw several GS's there.
Couple of things i noticed.
1. the stonking head/ear ache i had due to the adventure screen. Geesh you think they would have tested it in a wind tunnel or something. They could have pushed the F1 cars out for a day.

The other thing was that when i was cruising along holding the revs at around the 3600rpm mark, as opposed to reving up throught the rev range, it felt like it had a flat spot. I also noticed (may be connected or not) that the right handside mirror was vibrating more than the left hand side. Could something need balancing?

Thoughts please.
Cheers,
Fozziegsa

 

[Stewart H]

Welcome to the fold
These bikes are sensitive to valve adjustment and throttle body balance, have a read through the relevant bits in the font of wisdom.

Stewart

 

[longdog]

Take it to Steptoe for servicing

 

[fozziegsa]

Ah Steptoe, his name crops up alot, i have tried searching the site
I cant find where you work, for yourself/garage etc, you show south west london.
I though i would find a link of somesort, but to no avail.

come out come out where ever you are.

Fozziegsa.

 

[motobiker]

Ah Steptoe, his name crops up alot, i have tried searching the site
I cant find where you work, for yourself/garage etc, you show south west london.
I though i would find a link of somesort, but to no avail.

come out come out where ever you are.

Fozziegsa.

his posts are all over this forum - so he's not exactly difficult to spot. alternatively you can google his business. GS SHOP

 

[GS7A]

I had the same problem see here and it turned out to be coil packs. In the thread Steptoe describes how to fault the problem (assuming you have a twin spark?).