[questions about my new R] - ATV Riders Forums - Honda, Yamaha, Suzuki, Kawasaki, Polaris, CanAm, Arctic Cat, Kymco ATVs

Pages:1

questions about my new R
(Click here to view the original thread with full colors/images)

Posted by: stylenb

I got an 86 250r a few months back. My stator went out and I have upgraded to the Cr250 ignition. The person I got the bike off of new little about it. I have no clue of the bore? The cyclinder has BDR stamped on the side and it has a Dyno Port pipe, also a reed spacer with no lid...

Anyone know who BDR is and any one have experince with a dynoport pipe?

The motor rips, but it is really pipey. Its actually wearing me out in the trails. I know the smaller flywheel did not help this any

Any suggestion on smoothing it out a little?

Posted by: kiesta00

you could try changing the pipe to the ESR trx-5 or 6, depending on how much low end you want. your porting is probably the culprit to the pipey feeling, you can pick up another stock cylinder for pretty cheap these days and have it reported for trails.

Posted by: Rich250RRacer

If you're going to trail ride this quad, you should have stayed with the stock ignition. The lighter flywheel of the CR system will make the quad stall very easy.

Posted by: zedicus00

i think most the peeple that talk down on liter flywheels havent ever actually ridden with one. you shouldnt ever be low enough in the RPM range for stalling to be a problem anyways.

if you posted a pic of the pipe we could tell you fairly acuratly what style it was probably. rather it was a top end mid range or low end pipe.

im guessing with out seeing it but from what you discribe that it is more of a tope end pipe. you can get away with putting a midrange pipe on it like a trx-5 and shift the power band down quite a bit with out too much ill effect.

Posted by: stylenb

I would never switch back to the old ignition. The CR250 setup is great, bike starts easier and revs much quicker. Stalling is def not a problem for me.

I will post a pic of the pipe soon.

I went riding today, the bike just rips in and out of powerband.....has plenty of torque. It tosses me around and I am 6'3 275.

And I am not a newbie, been riding for 20 yrs. I raced my buddy's 450r today, he beat me by a bike length after 3rd gear. Considering I got him by 100lbs, I was impressed.

Sorry to ramble, just all excited after riding

Posted by: wilkin250r

I don't know the exact changes that are required to alter a CR250 ignition to fit on a quad.

But I DO know that they make flywheel weights for the CR250. Perhaps you could look into that option? It might be a simple bolt-on, and certainly cheaper than a new cylinder or even a new pipe.

Posted by: stylenb

I could run a cr250 fly wheel weight, I think there is a few people on this site that have that setup.

I don't want to loose the fast rev though, just like stated before......maybe move my power curve around with a new pipe or reeds.....

Posted by: stylenb

I hope this will work, this is from when I first got the bike.....doesn't look much like that now

So what so you think the pipe is?http://viewmorepics.myspace.com/index.cfm?fuseaction=viewImage&friendID=50036194&albumID=0&imageID=7878660