Resend my activation email : Register : Log in 
BCF: Bike Chat Forums


1993 Bandit 400 CDI readings

Reply to topic
Bike Chat Forums Index -> The Workshop
View previous topic : View next topic  
Author Message

Iceycold
L Plate Warrior



Joined: 11 Apr 2017
Karma :

PostPosted: 14:49 - 11 Apr 2017    Post subject: 1993 Bandit 400 CDI readings Reply with quote

Hi Guys,

I'm new here - so firstly - hello all Smile

My son (bless him), decided to buy a non-running Bandit 400 off of ebay... Then had it delivered to mine asking me to fix it for him... So i am using it to teach him a bit about bikes and mechanics!!

We have sorted the carbs, checked the compression, now it looks like the issue may be electrical, even though we have sparks. I just done think they are great sparks... Changed plugs, leads, and caps. Tested the coils, they seem fine as does the signal/pickup coil. Now i need to test the cdi.

Does anyone have a list of resistance readings for one of these? What I should be seeing from which connectors etc. would be great - if it exists out there?

Ta,

Icey...
 Back to top
View user's profile Send private message You must be logged in to rate posts

GT200Fan79
Brolly Dolly



Joined: 06 Oct 2015
Karma :

PostPosted: 18:43 - 11 Apr 2017    Post subject: Reply with quote

The only way of testing the CDI is using the proper suzuki box.

If everything else tests up ok then I suggest fitting a chinky CDI which are about 80 on the 'bay. CDI failure does happen as the transistors dry out with age.
____________________
A member of this forum that has a fetish for bald women in knitwear, mylar, autism, transitioning and humiliation.
 Back to top
View user's profile Send private message You must be logged in to rate posts

Lee Wright
Crazy Courier



Joined: 10 Jul 2013
Karma :

PostPosted: 21:14 - 11 Apr 2017    Post subject: Reply with quote

GT200bloke is right about testing the cdi, testing with a multimeter is pish.

I had a Bandit 400 that I bought as a non runner. Changed the capacitors in the Cdi to get me a spark but one of the cylinders would intermittently drop out which turned out to be a borked coil.

If you have a spark at all on both coils I'd lean away from it being the CDI and pickup.

Edit: The Suzuki manual is on the 400greybike forum I think, essential to have if you're fiddling.
 Back to top
View user's profile Send private message You must be logged in to rate posts

Iceycold
L Plate Warrior



Joined: 11 Apr 2017
Karma :

PostPosted: 10:59 - 21 Apr 2017    Post subject: Reply with quote

Hiya,

Thanks for your help and advice so far - you are both right! So I've tested all the electrics I can and I am getting sparks - so will leave the CDI alone for now Smile

Now seems the issue is fuel - namely not enough getting through to the cylinders. Turning over while spraying some easystart in the air box causes a little popping, but nothing much. But last night (in desperation!!) I thought - who needs carbs!! So i removed them totally, and used a syringe to squirt fuel directly into the intake manifolds. The bike fired and revved up till the fuel was spent.

Now - we have previously had the carbs off, cleaned and adjusted - all looks good. I have tried with the tank on and off as i know that sometime the fuel pipe routing can affect - same thing. Float bowls are filling, all jets are clean and clear and the right size. Diaphram's are god and seated correctly.

I haven't tested the compression, but there is good compression and you can feel a good draw by placing you hand over the rear of the carbs etc.

I'm a little baffled....
 Back to top
View user's profile Send private message You must be logged in to rate posts

Lee Wright
Crazy Courier



Joined: 10 Jul 2013
Karma :

PostPosted: 17:59 - 21 Apr 2017    Post subject: Reply with quote

The carbs on mine were a bastard...

Did you spray carb cleaner through all the drillings in the carb body and see it fire out in another place? Are the carb boots sealing well both around the carb bodies and where they sandwich the o-ring onto the head? Have you roughly set the synchronisation of the carbs with a piece of wire?
 Back to top
View user's profile Send private message You must be logged in to rate posts

GT200Fan79
Brolly Dolly



Joined: 06 Oct 2015
Karma :

PostPosted: 18:12 - 21 Apr 2017    Post subject: Reply with quote

If you don't know the history of the carbs then you need to start from scratch. Split the bank, ultrasonic them to within an inch of their life, then rebuild with new seals. You'll probably find the needles and tubes are fucked but c'est la vie.
____________________
A member of this forum that has a fetish for bald women in knitwear, mylar, autism, transitioning and humiliation.
 Back to top
View user's profile Send private message You must be logged in to rate posts
Display posts from previous:   

Post new topic   Reply to topic    Bike Chat Forums Index -> The Workshop All times are GMT + 1 Hour
Page 1 of 1

 
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

Read the Terms of Use! - Powered by phpBB © phpBB Group
 

Debug Mode: ON - Server: discovery (www) - Page Generation Time: 0.05 Sec - Server Load: 0.89 - MySQL Queries: 17 - CDN Objects: 32 - Page Size: 49.14 Kb