Hey guys, has anybody had trouble with a Dynatek CDI on their Prairie or B.F.?
I have a stock 2004 Twin Peaks, (which is essentially Prarie 700), and I put a Dynatek FS cdi on it. It worked fine for a while but after a few hundred kms on the cdi the bike started to bog out at high speeds. After that it would bog out even at low and medium speeds.
I cleaned the filter, burnt a few tanks of gas, changed and gapped the plugs, and it still happened. I put the factory cdi back in and the bike works great again.
I have sent it back to Dynatek for testing, but I haven't heard from them yet.
From what I have read, I shouldn't have to jet it but maybe I do. It just seems funny that it would work great for a few runs and then work like crap.

 

Ive had a Dyna for 600kms or so and it seems to be working fine so far. . .

 

<div class="FTQUOTE"><begin quote>Originally posted by: Bubba Zoomy
From what I have read, I shouldn't have to jet it but maybe I do. It just seems funny that it would work great for a few runs and then work like crap.</end quote></div>

Those ignition timing advancing gadgets (CDI) do not change carburetion on carbed machines. Thus not requiring jettings. It's just gone bad.

 

Thanks, it's good to know that I don't have to jet it. I still haven't heard back from Dynatek on their assesment of the cdi, but I'll let you know what they say.

 

electrical and computer parts fail, and in "weird" ways...

this from a hard core professional techie... me

 

i've been looking for a cdi upgrade for my 05 650 brute sra. have found them for the prairie 650 and the 650i/750. is the cdi the same as the prairie and which is the best bang for the bucks.

 

I heard back from Dynatek on my cdi. They did a test and found that there was a problem with the spark output voltage. They are replacing it for free, they didn't even want a copy of the receipt, they didn't care where it was purchased, they only seemed concerned about the problem. They said it was a rare case, and they were more than happy to replace it.
I found the customer service to be top notch. I would definately do business with them again.

 

Larry Nelson at Dynatek mentioned that the cdi's are the same unit for the bikes that you mentioned. I would by a Dynatek for your BF because you'll like the performance and they stand behind their products.

 

When you have a Dynatek installed, carry your OEM with you. I learned that lesson in 1999 with a Valkyrie which stranded me 50 miles from nowhere.

 

I keep my original cdi in my trunk just incase, but thanks for the advice anyway.