Spark mesing with speedometer?

[copmagnet80cc]

I recently bought a speedometer for my motrbike and i was wondering if the spark coming from the plug can effect the speedometer in any way. I've been having troubles with the one ive installed on my bike.

 

[maniac57]

Yes they can mess up from the ignition causing interference.
I had several wireless speedometer's die from this and basically gave up.
You might try a wired unit and shield the wires with some braided cover.
Should be someone who has found one that works here...

 

[2door]

Here is some reading for you. I found this by typing in "speedometer" into the search feature. http://www.google.com/cse?cx=partne...c.tab=0&gsc.q=Speedometer problems&gsc.page=1

Tom

 

[Sgt. Howard]

Use a suppressive spark plug and it will work

 

[viperman200221]

Go with a wired speedometer. The wireless ones have never worked with my bike.

 

[mapbike]

I have had great results with wired and wireless speedometers, I do mount my ignition coil behind engine as far away from speedo as possible and I have found that using a suppressor/ graphite core sparkplug wire really helps block what I believe is called RF interference, I cant tell any performance difference between a solid core wire and the suppressor core wire on my bikes, but it will allow the wireless and wired speedos to work without acting crazy.

Map

 

[copmagnet80cc]

Ive seen people use ferrite beads on their wire but what if i wrapped the wires in aluminum foil?

 

[Going2Hell]

it's cheap, try it... you got me interested now too. I've heard of the wireless interference, and I could guess wired problems may occur.

I used a $20 Bell F12 speedo and it was accurate, it was crap... but it was accurate. The memory kept resetting and the lcd would freeze up around 40F.

 

[copmagnet80cc]

I put on the aluminum foil on the bulk part of the wire but i have yet to test it...ill inform yall tomorrow