CR500 Kart engine rebuilds

[Sandblaster]

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 135.JPG (329.99 KiB) Viewed 14259 times

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 136.JPG (287.33 KiB) Viewed 14259 times

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 137.JPG (117.3 KiB) Viewed 14259 times

[Sandblaster]

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 138.JPG (91.15 KiB) Viewed 14258 times

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 139.JPG (96.15 KiB) Viewed 14258 times

[Sandblaster]

Yesterday we received a 91mm CR500 Wiseco piston.
I took the cylinder and piston to the machinist and told him the specs I wanted it bored to. I should have it early next week.
We will be getting the Kart this time so we can tune it and break it in over a few days.
I can't wait..

[Sandblaster]

Received the cylinder back from the machine shop today.
Relieved the exhaust bridge and chamfered all the ports.
Put some cheese to the piston...
Tomorrow we should have some testing to do

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 140.JPG (62.49 KiB) Viewed 14228 times

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 141.JPG (129.38 KiB) Viewed 14228 times

[Sandblaster]

Ready for it's first heat cycle...

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 142.JPG (453.88 KiB) Viewed 14222 times

[Sandblaster]

First heat cycle..

https://youtu.be/NyoDQR4CDTY

[Sandblaster]

I think Jason want's one...
This pic was taken after the fourth heat cycle yesterday evening.
I'm sure my neighbors are just as happy about it as I am

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 143.JPG (196.31 KiB) Viewed 14214 times

[Sandblaster]

Race results.
1st heat placed 1st.
Second heat placed 4th.
Main was in second but spun out. Had to start over from the rear of the pack, ended up placing 3rd but was DQ'd due to a early restart that everyone says was bunk.
Oh well, that's racing.
Overall I'm not dissatisfied with the results especially considering that we have a lingering lean issue.
We think we know the cause but will get it resolved next week.
We do have two weeks before the next race so I'm certain we can get this figured out.

Special thanks goes to Adam Millar for his technical support.
Without Adam's help I'm sure we would have finished at the back of the pack....

[Sandblaster]

This isn't going to work too well...

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 144.JPG (131.88 KiB) Viewed 14202 times

[Sandblaster]

Bearings removed and degreased.. Ready for glass blasting.

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 145.JPG (203.31 KiB) Viewed 14197 times

Glass blasting done, ready for vapor blasting

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 147.JPG (131.9 KiB) Viewed 14196 times

Tig it up Travis..

JT ENGINE WORKS 89 CR500 CART ENGINE BUILD 146.JPG (123.58 KiB) Viewed 14197 times