Jump to content

DRZ E vs S/SM ignition timing

Recommended Posts

Hi,

would like to make sure I understand it correctly. 

according to Clymer Manual E and S/SM might have a different ignition timing. The manual says the following:

E - 7° BTDC at 1800rpm

S/SM - 7° BTDC at 1500rpm

Does it mean that E has a more advanced ignition timing? If so, it should influence the mid range and top end pull.

The ignition is not adjustable but maybe it's possible to change it by swapping flywheel or cdi?

Share this post


Link to post
Share on other sites

The E has more aggressive cams, and a CDI that revs 500 rpm more than the S/SM.

  • Like 1

Share this post


Link to post
Share on other sites

It would seem the E has a less aggressive timing than the S. Not uncommon when you have a higher compression ratio. However, when you get closer to 14:1 compression, things start to change again.

Share this post


Link to post
Share on other sites

Clymer Manual is simply giving the initial ignition timing at the recommended idle speed.  As far as anyone knows the E/S/SM ignition timing are all the same.

  • Like 1

Share this post


Link to post
Share on other sites

Why do you say the S/SM has less initial timing?  Both are 7 deg at idle.  Need to know at what RPM the timing starts to advance.  I suspect both are still 7 deg at 1800 RPM.

Share this post


Link to post
Share on other sites
13 minutes ago, Noble said:

Why do you say the S/SM has less initial timing?  Both are 7 deg at idle.  Need to know at what RPM the timing starts to advance.  I suspect both are still 7 deg at 1800 RPM.

Reread what I posted. Just the opposite! :bonk:

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:


×