Go Back   Husaberg Forum > Mechanical and Technical > Electrical

Electrical Electrical Forum - wiring and more

Thanks Tree3Thanks
LinkBack Thread Tools Display Modes
June 9th, 2015, 10:49 PM   #11
Senior Member
FE350's Avatar
Joined: Apr 2014
From: Chilliwack, BC, Canada

Posts: 689
Thanks: 253

I Ride: 2014 FE350, Beautiful Blonde
Thinking like a fool, Waste spark system same as what my V twin had. Thanks everyone for the wake up
FE350 is offline  
June 10th, 2015, 03:47 PM   #12
Senior Member
tourist's Avatar
Joined: Nov 2012
From: Iceland

Posts: 2,371
Thanks: 803

I Ride: 1 Berg, 1 Zook
Originally Posted by FE350 View Post
Thinking like a fool, Waste spark system same as what my V twin had. Thanks everyone for the wake up
It's certainly allowed to think and question
tourist is offline  
June 10th, 2015, 03:58 PM   #13
Senior Member
Joined: Oct 2009
From: Galston Australia

Posts: 995
Thanks: 13

I Ride:
I've set up a few different engines all using "wasted spark" which Fires the Spark Plug every time the Piston is at Top Dead Centre. Like previously said:

The 570 doesn't have a Cam Sensor only a crank sensor, so the Ignition system doesn't know if the Piston is at the Top Dead Centre for Compression Stroke or Top Dead Centre for Exhaust Stroke.

You also see many multi cylinder engines with 2 Spark Plug Leads coming out of the 1 Coil. They both fire at the same time but 1 Piston is TDC Compression stroke and the other is TDC Exhaust Stroke.
Davo is offline  
June 10th, 2015, 07:45 PM   #14
Senior Member
Joined: Apr 2014
From: Alameda CA

Posts: 101
Thanks: 10

I Ride: 05 FE 650, 11 FE 570
Ok, I go along with the above, that the 570, as well as most other single cylinder bikes, spark off the crank every revolution. When installing the tach sensor, I tried both the two conductor sensor wire (which is the same as the power lead), connecting the red wire to the coil input and the black to a good ground; as well as the single conductor red wire lead wrapped around the plug wire several times.

According to the instructions, I programmed in 1 ppr (pulses per revolution), only to find that both configurations gave me an idle of around 760 rpm, or about half what I expected.

Then I contacted TT tech support, and was immediately told to change to .5 ppr, and to use only the single conductor red wire wrapped around the plug wire. Indeed, my tach now seems to be right on. It seems to me the confusion (there's lots of it!!) might have been avoided had TT used rpp - revs per pulse. Then users, 2T or 4T, could program 1 rpp, and those 4T bikes not employing wasted spark, would simply program 2 rpp.

Also, I can state with certainty that the tach is correct, because I verified it using Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator, an incredible tool for selecting gearing that will yield desirable speed/rpm ratios.

Many times I have read posts from dirt bikers stating they have no use for a tach. But, it seems to me that knowing when your bikes torque and power come in would be useful information.

I confirmed several of my bike's speed/rpm readings against GearingCommander numbers, and they were all within 100 rpm.

I'm very pleased with the Vapor, esp considering its price point.

Hope this helps.
Thanks from tourist

Last edited by sgomes; June 10th, 2015 at 07:48 PM.
sgomes is offline  

  Husaberg Forum > Mechanical and Technical > Electrical

fe570, revolution, spark

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
No spark AGAIN??? wiktor Electrical 17 November 26th, 2017 11:49 PM
no spark! nikolz12 Electrical 4 March 31st, 2015 11:26 PM
Sparks per revolution? canolman Electrical 5 October 3rd, 2014 02:29 PM
2002 501 weak spark or no spark bergtime Electrical 3 December 11th, 2008 02:44 AM
help got no spark dan2002 Electrical 3 August 28th, 2008 10:39 PM

Facebook Twitter Google+ RSS Feed