KX500 Supersport

[Abbott]

trying to research some tachometer options. I really want to put an analog tach on this thing. never cared much for the digital screens really. I keep reading posts about a 4 stroke tach only reading half of the RPM's because of the wasted spark that the tach is set up for.

anyone know a way around this?

[Abbott]

hey guys. looking for some knowledge on this...my reeds have this piece installed that blocks part of the flow area. I checked a parts fiche and this piece isn't shown separately. just wondering if it's aftermarket or OEM and if it needs to be there or is used on the newer generation 500s as well. I plan on using this bike on an asphalt track at high speeds so to me it would make sense to have the highest flow as possible

[Abbott]

anyone have any ideas about the insert that goes into the reed cage?

[umberto]

Has the carb boot been modified as well?

[Abbott]

no, it is stock. straight thru.

do the newer Gen kx500's have anything like that?

[Abbott]

never mind. you guys are right! I was going off memory (which isn't much!) when I thought the carb boot was straight thru. it is offset so it makes sense to have that insert. Makes me feel better it isn't just some random thing thrown in there.

got the new boyesen reeds installed last night. tore down the carb and sonic cleaned the entire thing.

new reeds on the left, old ones on the right...

[Abbott]

got the tail section in from Catalyst Composites. love the shape of this thing but it's too wide. had to thin it up. cut out the section of the painters tape. I'll eventually reinforce the underside and bonds the top. I'll also have to shape the front of it to match the tank....when it's 1 pc. again hahah

[Abbott]

prepped and reinforced the tail section tonight. should start fitting this weekend

[Abbott]

have the tail shaped how I want it now and bondo'd. Ready for primer and paint once I drill the mounting holes. Looks funky with out tires and having the suspension completely decrompressed. can't wait to get some on there.

[ninja]

I like the back rest hump to hold down the front.  Can't wait to see it's results 

[sandblaster]

Your doing a great job.
I've been so busy that I lost track of your project.
On your reeds, the Rads are good for lower to mid range but if you want the most out of your engine on top you really need a V Force 2.
You will also need to mod a few things as well..
You might want to take a gander at this post.

http://www.oem-cycle.com/forum/viewtopic.php?f=5&t=484

This was all Motorrad's fault 

[Abbott]

Your doing a great job.
I've been so busy that I lost track of your project.
On your reeds, the Rads are good for lower to mid range but if you want the most out of your engine on top you really need a V Force 2.
You will also need to mod a few things as well..
You might want to take a gander at this post.

http://www.oem-cycle.com/forum/viewtopic.php?f=5&t=484

This was all Motorrad's fault 

Thanks Sandblaster! Only issue with the VF2 reeds is that the mouth of the '85 intake only have a 4 hole bolt pattern (1 at each corner) where the newer gen K5's have a 6 bolt pattern...not sure how I would get around that.

[sandblaster]

Ah... Forgot your running a 85 engine.
I'd make an adapter plate out of 10mm thick aluminum.

[scottysg]

great to see something crazy like this! can't wait to see it running.

[Abbott]

https://youtu.be/huDA4Veu0FQ

here is a video of my '85 K5 head on the mill yesterday. took .020" off of it. had way too much room in there for the squish band. Even now after the machining, I reassembled the head and measured 1.8mm. There is so much room because I am running the newer style 2 ring piston which has a flatter piston dome. I may eventually need to get a custom head gasket made to get it lower but I'll see how it runs first.