Hey guys pretty new to the forum so ill use this as a "Hey im new post" too as im limited to only 5 a day.

Reet ive a little problem with the D15B, i think ive sussed the answer but id rarter run it past you guys as most of you are more knowledgeable than myself when it comes to these.

the Idle speed is very erratic, when cold, bumps up to 1500 as the choke is on...Fair enough

But when warmed up she drops to 1000, for a few minutes, then down to 500-700 for another few moments, and then drops further and cuts out.

This process is speeded up when i put my lights on so i think it must have something to do with the battery

a) the battery is wasted
b) a belt is loose and not charging up the battery.

taken it to a shop and they apparantly fixed her, but still came back with problems.

any help is greatly appreciated, Thanks in advance

Dave