smoking hot cdi box

Any topic relating to the FZR/YZF (UK) or motorcycling in general.

Moderators: Site Director, FZR Forum Moderators

Post Reply
China_Racer_1
Level 5.0
Level 5.0
Posts: 509
Joined: Sun Jun 15, 2008 10:52 pm

smoking hot cdi box

Post by China_Racer_1 »

hey all,

Well I got my hybrid 400/yzf out on the track yesterday but I have an issue with the blcak box getting so frigin hot you can not even touch it for a second.

Anyone else run into this or know what might be causing it?

I suffered a dramtic loss in power about 1/2 way through two sessions due to - I suspect - this problem. Though I am nto sure. I got all new electronics for the bike on the way as well as Ihae to jump the starter. I got a relay out as well.

I was thinking a grounded wire maybe or soemthing like that but, again, not sure.

I got a report on the bikes overall performance in the "Race & track" section below

I really need a resolution on this. I got a race this weekend.

Thanks
Steve
User avatar
R3TARD
Level 4.5
Level 4.5
Posts: 491
Joined: Thu May 22, 2008 7:07 pm
Location: north Georgia
Contact:

Re: smoking hot cdi box

Post by R3TARD »

vr??? I know my cdi got hotter than hell when my vr went out

1992 FZR 600
Yoshi exhaust
K&N pods
Airtech R1-kit
02 R6 fork swap
02 R6 Swingarm
520 chain conversion
07 R6 controls
Vortex R6 clipons
07 R6 radial master


2003 CBR 600rr
bone stock
yamaha_george
5000+ Posts
5000+ Posts
Posts: 5853
Joined: Fri May 09, 2008 8:46 am
Location: west london UK

Re: smoking hot cdi box

Post by yamaha_george »

R3TARD wrote:vr??? I know my cdi got hotter than hell when my vr went out
That sounds like the usual suspect that and you have a handmade loom on that bike maybe a lead not connected well.

Take the lid off the TDI and inspect the tracks inside to the switching transistors You can see the repair details in the WIKI how-to section on the TECH page
Post Reply