View Single Post
Old 12-29-2012, 10:23 AM   #1
Veter OP
Motoviajero
 
Veter's Avatar
 
Joined: Oct 2012
Location: On a relaxed LONG trip all over Latin America
Oddometer: 45
Need help! Problem with Big GS. Mexico

Hello, everyone! So to cut the story short I've been cruising around Mexico on my 1200gs and decided to have a service check at Mexico City dealer's. Looks like it was a serious mistake as now I have problems with my bike that I can't figure out myself. I'm near Cancun now and Cancun's dealer is said to be even worse, so I can rely on your advice only to fix it myself with those crippled hands of mine

The symptoms are the following:

1. When cold engine stalls and I need to rev up the gas in order to keep the RPMs
2. When on the first gear stalls frequently, overall RPMs are not stable and it gets worse
3. I can feel that output/power is much worse on both ends and it gets worse
4. Sound has changed - before I had exaust "caugh" only when I close gas, now it is all the time like series of caughs
5. Clutch became more tight - it is hard to hold it on first gear
6. When I try to move slower than the first gear allows using clutch there is SERIOUS vibration and "helicopterish" sound, engine stalls sometimes as well

My noob Hypothesis:

1. Smth with fuel/air mixture - need to check air filter, try without power commander (booster plug in my case), check injector (dunno how)
2. Exaust/CAT? I've been using mexican 92 fuel and 89 occasionaly. However, many ppl use the same bikes here without such problems and I didn't use unleaded fuel (which I'm not certain as they can add anything in fuel)
3. Clutch. But it doesn't hold for all the symptoms. However, I had my clutch steamed in the mountains once and asked those BMW guys to check it, they said it was OK

Please advise, I'm desperate
Veter is offline   Reply With Quote