JT Engine Works 1989 RM250 engine build

Bike Builds and rebuilds. Post pics and discuss your projects.
Post Reply
User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Fri Aug 12, 2016 12:18 am

I'm a bit late in all of this...
So this is a quick recap.
Disassembled, Vapor blasted, lapped, and vapor blasted again engine cases.
All new bearings, seals, gaskets, o-rings, washers, bushings, snap rings, alignment pins, ect.
The crank is balanced, polished rod, trued, welded.
The cylinder is plated but left at stock bore with stock port timing.
It does have some scuff n buff to clean up the factory casting flaws..
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 101.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 101.JPG (181.99 KiB) Viewed 1653 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 102.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 102.JPG (163.21 KiB) Viewed 1653 times
If bikes are for kids I'll never grow up.

User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Fri Aug 12, 2016 12:19 am

JT ENGINE WORKS 1989 RM250 ENGINE BUILD 103.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 103.JPG (256.17 KiB) Viewed 1652 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 104.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 104.JPG (192.73 KiB) Viewed 1652 times
If bikes are for kids I'll never grow up.

User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Fri Aug 12, 2016 12:19 am

JT ENGINE WORKS 1989 RM250 ENGINE BUILD 105.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 105.JPG (187.91 KiB) Viewed 1651 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 106.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 106.JPG (181.46 KiB) Viewed 1651 times
If bikes are for kids I'll never grow up.

User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Fri Aug 12, 2016 12:20 am

JT ENGINE WORKS 1989 RM250 ENGINE BUILD 107.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 107.JPG (193.08 KiB) Viewed 1650 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 108.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 108.JPG (170.7 KiB) Viewed 1650 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 109.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 109.JPG (177.19 KiB) Viewed 1650 times
Jason is so fussy it's crazy... But good crazy... More tomorrow...
If bikes are for kids I'll never grow up.

User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Tue Aug 16, 2016 12:07 am

Jason made some more progress today..
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 110.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 110.JPG (132.57 KiB) Viewed 1645 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 111.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 111.JPG (164.67 KiB) Viewed 1645 times
.
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 112.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 112.JPG (152.55 KiB) Viewed 1645 times
It's really turning out nice...
If bikes are for kids I'll never grow up.

User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Tue Aug 16, 2016 4:16 am

More progress tonight
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 113.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 113.JPG (196.93 KiB) Viewed 1641 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 114.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 114.JPG (246.17 KiB) Viewed 1641 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 115.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 115.JPG (236.07 KiB) Viewed 1641 times
If bikes are for kids I'll never grow up.

User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Tue Aug 16, 2016 4:16 am

JT ENGINE WORKS 1989 RM250 ENGINE BUILD 116.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 116.JPG (165.22 KiB) Viewed 1640 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 117.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 117.JPG (169.81 KiB) Viewed 1640 times
If bikes are for kids I'll never grow up.

User avatar
Sandblaster
Posts: 5944
Joined: Thu Jun 07, 2012 3:50 pm
Location: Eugene, OR
Contact:

Re: JT Engine Works 1989 RM250 engine build

Post by Sandblaster » Tue Aug 16, 2016 4:17 am

JT ENGINE WORKS 1989 RM250 ENGINE BUILD 118.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 118.JPG (173.43 KiB) Viewed 1639 times
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 119.JPG
JT ENGINE WORKS 1989 RM250 ENGINE BUILD 119.JPG (188.54 KiB) Viewed 1639 times
Should have it ready to ship tomorrow... :shock:
If bikes are for kids I'll never grow up.

Post Reply

Return to “Bike Builds and rebuilds”

Who is online

Users browsing this forum: No registered users and 2 guests