BannedCR500Riders.com

this was as far as i got today. not far at all.

Here is the good condition 85' next to my 86'

I was also able to get the gray plastics from dc plastics !

Thanks to some parts from a fellow member, the 86' should be breathing a bit easier these days.

It took a bit of persuasion to clear the water pump bolt but all is well. It fit a ton better than the tweaked stock pipe I had on it.

One step closer !

Seems to be coming together nicely.

Sweet! Looks real good...I miss the old days of 80's MX...

Classic 80's MX Movie:

hoofarted wrote:Sweet! Looks real good...I miss the old days of 80's MX...

Classic 80's MX Movie:

Thats funny. I have that movie on DVD. My son loves it! Of course I'll watch it too, not like he has to twist my arm!

JBaze wrote: Thats funny. I have that movie on DVD. My son loves it! Of course I'll watch it too, not like he has to twist my arm!

Funny - I have it as well. Tracked it down on DVD about a year ago...now my kid has it in his room...probably watched it more than I have.

Never seen or heard of that movie so I just Netflixed it. It is at the top of my queue.

Winners Take All is probly one of the more cheeseball movies depicting supercross, but it's a good flick for what is was

This is what happened to Jonny! He should have stuck with bikes!

Well,
I took the 86' out to E street in yuba city on thursday. I had it and my 03' yz 250 in the back of the truck all ready to go. That was the plan at least, this was one of those days that just wouldnt pan out. Ran late at work, had old gas in the yz, full can of old gas that does me no good. Track closes at 2, get to my brothers at 1230. 3.5 hours of issues and to ride for an hour by time we get there. I wasnt to chipper, then extra issues with the yz didnt help much. The 500 was a bit too much bike that day, hadnt been on the track for a while. After a few slow laps it was like old faithful through the overflow hose. S O B ! was the main thought I had at the time. I had checked everything before I fired it up, coolant, tires the usual. The last time my brother and I rode it had acted up a bit but not like this. My brother had two bikes with him so the day wasnt a loss. We get to his house and pop the top end off just to check things out. Head gasket perhaps ? No, I had ran flush through 3 times and thought all was well... NEGATIVE, right rad was minimal flow, left was no flow. Ok, on to something here. The cylinder had what looked like fish tank gravel in the jackets. Not a few little chunks, a shit load ! My bro cleaned it in the solvent tank at our friends honda shop, honed it and got it ready to go. I picked up a set of gaskets, we bolted it all back up and now it sits in the basement. Evey time the bike acts up I always say " Dont think I wont put your ass for sale on the forum"

Thanks for your time.

BUMMER! Where did all the Crud come from.

I dont know if it was a combo of corrosion, radiator seal and crud or what? All I know is that there was a lot of it. The 86' seems to be better now.

the left radiator on the 86 still seems to be restricted ? the flush doesnt really seem to do much. what about CLR ? i have some but the jug says not to use it on aluminum ? any ideas out there ?

the 86 now has some ti pegs from an 06 yzf, easy swap. running a ti rear spring from a yzf as well, od and id are near spot on. spring is about 3/4" shorter than the stocker.

A little acid from the Home depot will either get that crap out of there or eat a hole in that radiator. I have used it on radiators and gas tanks with great result. Just don't leave it in the radiator long, use the rinse repeat method if needed. there are full write ups about it on the net.

i just ran a bunch of clr through them and they seem to be working well.

I'm going to work on getting some current pic's of the 86' up. I have the 89' clamps and some reworked 90' forks on it now. Does anyone have a set of 91' forks?

I am currently on the hunt for 92-94 cr250/500 forks. I have a set that will be going on this. I need to find 1 or 2 more sets.

I ordered a set of conversion bearings for the '86 the other day. I tracked down a set of '92-'94 clamps and forks. The main reason for this swap was so that I could get the correct spring rate for me. As well as a better front brake set up. All was well until I opened the box for the lower bearing. There were two large thick washers included in the bearing kit. After measuring I came to the conclusion that these were not needed for my swap. Pressing out the '92 stem was a bit of a chore. The problem now is that I did need a spacer, roughly 0.0060 worth. So now the dilemma is: tear down the front end and hope that the bottom triple doesn't break pressing out the stem again. Or, face the bottom of the head tube on the frame. I have done that on bicycles before, I realize that there is much more stress on this frame than a bicycle frame. There is a pretty good amount of un machined tube below where the steering race presses in. Thoughts? Comments? Other than some minor issues with bolt head size this hasn't been too bad.