Join Date: May 2010
Location: singapore, , singapore
Newbie - surging on accelaration
I just bought a 1999 1200LT. 42,000 km on odo.
I reside in Asia and its hot and humid all year round.
When I bought it, it would not idle properly and would die off. Riding it with an open throttle was good.
The bike was probably not ridden much and the bike initially could not start because of bad batteries. It needed a jump start from a good battery (since replaced).
Have had the fuel pump, fuel filter, fuel lines, fuel pressure regulator replaced. New KN air filter and new fluids.
Some cleaning of the throttle bodies was done by the workshop. It was pretty 'gummed'. Since cleaning it looked clean.
Now the bike idles. There seems to be a little of idling variation from about 900-1100 rpm.
However, cold riding for about 3-5 miles is ok, but when the engine temperature gauge reaches about 1/2 mark, it bucks when I open the throttle and pull off. At cruising its ok.
Does anybody have any suggestions on what could be the problem here ?