tengai no spark - Kawasaki KLR 650 Forum
Other KLR's - 250, 600, Tengai, C Models, KLX... Discussion of all the OTHER KLR models.

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post #1 of 2 Old 09-26-2019, 04:03 PM Thread Starter
Join Date: Sep 2019
Posts: 1
tengai no spark

In the process of sorting a 1988 tengai B1 for the road here in the uk, story goes bike been stored for 15 years & not rode dragged out of garage & I got it running & riding etc with various new parts required.
Now I ran it up & rode it fine for 3 miles the other day & was fine so booked MOT to try it the next day & NO SPARK.

cant find any wiring diagrams & also require how to guide & meter readings for CDI & coils please.

Also any other suggestions.
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post #2 of 2 Old 09-26-2019, 04:58 PM
1st Gear
Join Date: May 2019
Location: Lake Macquarie, NSW, Australia
Posts: 37
Welcome to Tengai ownership. Great versions of a great bike.

All generation 1 KLRs share the same basic wiring the only difference for the B Model Tengai to the normal A model bikes are some minor variations around the instruments to suit their different set up. So download any of the ones available on the web. My favourite is one labelled "Professor Jim's 1995 KLR 650-A9 model" - being in colour it is much clearer than any of the ones official black and white ones.

The problem could be the coil or the CDI but I think it is highly unlikely, being electronic items these do not suffer from just sitting, unlike the more mechanical bits of the bike. The more likely cause is bad earth's (very possible), bad connections and or broken wires. I think you now need to check all the wiring of the ignition circuit thoroughly checking for continuity as you go. Good luck this is one of those jobs that is easier said than done, but at least when you do find the fault is usually easy to fix.

One specific area I have had problems with on several old KLRs are the safety switch circuits designed to stop you starting in gear/riding with the side stand down. These are fiddly to check. A simple way to by pass them totally is to join (use a Scotch-Block or similar) a new length of wire to the red-black wire coming out of the CDI unit and then connect this wire to earth. If this solves your problem you at least know which part of the wiring to concentrate on (or simply leave it in place, mine has been there for years).

Good luck

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