1983 500CR Race Bike Project

[Tommyboy]

Yes, I know it's designed to retract when the motor starts. I was just going to add a thin spacer so the tip would be easier to grab, especially when the motor is hot.

 

[Tommyboy]

Well, the motor is complete with a new Mikuni 38mm flat slide with the suggested jetting. Won't start. Checked timing again, get a pop but it doesn't turn over. Disconnected the kill switch and same result. I switched carbs and installed a Mikuni flat slide carb that originally came on my 94 Husky 360. The bike fired up. Going to try it again and see if it still runs. In 94, the Kehin carb and the FMF pipe was the go to answer for those machines. Mikuni didn't do to much for the early TM carb (jets and adjustment wise) and was working on the new flat side design that I have now. So, after all that, anyone have any jetting recommendations for this motor. Thanks in advance. I'll have to open up the carb and see what I have now but am looking for some answers.

 

[Picklito]

I haven't ever cared much for the Mikuni flat slides, so my jetting recommendation would be to replace it with a Keihin PWK!

 

[Tommyboy]

I did change the ignition and went with a Motoplat 1984 CR500 internal flywheel setup.

 

[Picklito]

Yes, I think I commented on this one or someone else's thread about wanting to run an internal rotor on a 500... WOW!!

 

[86 400 XC]

Got the internal on my 430 and the 82 500, they rock!

 

[Picklito]

 

[silverstreakNZ]

yeah my 82 500 has an internal rotor . its the business

its a cr . its made for getting from here to just over there in a great big hurry

 

[Tommyboy]

Getting the bugs out of the carb situation. Awaiting some jets to dial it in. Have the first race of the season this coming weekend so we will see how far along the bike is by then.

 

[Tommyboy]

Well, the carb problem was not worked out in time for the first hare scramble. The parts arrived after the event and I went as a spectator and watched. The parts finally arrived and for the most part the carb is dialed in now. I installed a set of 85 triple clamps to upgrade it to solid mounted handlebars. The 1982 style front fender has some movement to it and I'm thinking about adding a front fender bracket to control it. Added green number plates and will have to take of pic of what I have done so far sometime this week.

 

[84scrambler]

Hey Tommyboy, was the first race in Bartow? I seen all the r.v. 's pulling in off of 17 just south of town . I figured that was the kick off...

 

[Tommyboy]

Yes it was. The Daytona race was postponed because of rain saturating the pit and parking areas. Bostwick on the 24th is the next race. www.floridatrailriders.org

 

[Tommyboy]

The 500 is going to be used for hare scrambles.

 

[Tommyboy]

Bostwick has been rained out, Daytona has dried out and we will be racing in Daytona the 24th.

 

[Tommyboy]

Daytona pic with two Huskies running together.

 

[Tommyboy]

Next weekend we have a hare scramble race in Bartow, Florida, just outside of Tampa. Saturdays course is 9 miles long per lap and Sundays course is 11 miles per lap and both include a MX section. This is part of the Florida Trail Riders series, one of the largest series in the country. My 84 is in the EVO class and will run on Saturday for 1.5 hours. On my modern bike, it's 2.0 hours on Sunday. This is one of the best tracks and put together by one of the local FTR clubs.