Re: Help on Suzuki DR650 weak spark, MXTuner?.. or zuki owners

On Wed, 03 Dec 2003 02:15:25 +0000, Zodran wrote:

>  The problem he is having is it starts and idles fine, under
>  acceleration it
> falls on its face. He has had the tank off, carb off and disassembled
> and has eliminated a fuel related problem with reasonable certainty.

Has a CV carburetor I believe? Before throwing bucks at the thing I
recommend another very close look at the vacuum throttle slide and
diaphragm. A leak in the diaphragm or top cap will prevent the engine from
revving yet run perfectly at idle.

> He
> got a inline spark analyzer and said at idle it's got a fat blue spark,
> but give it some throttle and it turns yellow and weak looking.

Unless he has used that same tool on the same model bike and gotten
different results, I wouldn't totally trust it. At the least try it on a
known good bike (yours?) of different model.