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Building a 1988 Suzuki RM250 engine
Posted: Wed Sep 16, 2015 9:00 pm
by Sandblaster
We just received a 1988 RM250 that we are going to most likely do a full rebuild on.
First things first, let's give it a good washing before disassembly.
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 101.JPG (65.58 KiB) Viewed 10498 times
There is nothing worse then dropping dirt, sand, grease, and grim into a motor.
Regardless if we are going to clean it all up later, we want to keep it as nice as possible...
Who knows, at this point, it may not be worth rebuilding...
Here is what we are starting with..
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 102.JPG (78.91 KiB) Viewed 10498 times
At first glance it does not look too bad..
But a closer inspection reveals a few things..
Missing carb cap..
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 103.JPG (64.2 KiB) Viewed 10498 times
Broken right side exhaust valve cover
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 104.JPG (51.42 KiB) Viewed 10498 times
Re: Building a 1988 RM250 engine
Posted: Wed Sep 16, 2015 9:02 pm
by Sandblaster
Broken exhaust flange
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 105.JPG (46.81 KiB) Viewed 10497 times
The drain plug has been repaired.
Externally it looks good but we won't know until we get it apart and inspect it.
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 106.JPG (63.74 KiB) Viewed 10497 times
Some buggered up parts.
We might be able to clean them up and polish them out a bit..
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 107.JPG (45.38 KiB) Viewed 10497 times
Broken shift shaft spacer..
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 108.JPG (31.71 KiB) Viewed 10497 times
Re: Building a 1988 RM250 engine
Posted: Wed Sep 16, 2015 9:03 pm
by Sandblaster
And heavy wear around the engine case..
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 109.JPG (81.81 KiB) Viewed 10497 times
Yes, it is repairable but it may be cheaper to get a new case...
We will see
Re: Building a 1988 Suzuki RM250 engine
Posted: Wed Sep 16, 2015 10:30 pm
by Sandblaster
Clutch basket is
REALLY worn..
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 110.JPG (60.24 KiB) Viewed 10495 times
Re: Building a 1988 Suzuki RM250 engine
Posted: Wed Sep 16, 2015 11:15 pm
by Sandblaster
Re: Building a 1988 Suzuki RM250 engine
Posted: Wed Sep 16, 2015 11:16 pm
by Sandblaster
AH HA!
Found the transmission problem...
Rounded dog ears..
The big question is, can we find replacements that are better?
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 115.JPG (74.29 KiB) Viewed 10494 times
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 116.JPG (71.31 KiB) Viewed 10494 times
Re: Building a 1988 Suzuki RM250 engine
Posted: Mon Oct 19, 2015 11:46 pm
by Sandblaster
Cylinder issues....
Look at the sleeve.... and cracks in the bridges.
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 117.JPG (69.69 KiB) Viewed 10472 times
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 118.JPG (84.25 KiB) Viewed 10472 times
Re: Building a 1988 Suzuki RM250 engine
Posted: Mon Oct 19, 2015 11:49 pm
by Sandblaster
It should look more like this:
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 119.JPG (34.97 KiB) Viewed 10472 times
Re: Building a 1988 Suzuki RM250 engine
Posted: Mon Oct 19, 2015 11:52 pm
by Sandblaster
And when we are done it will be better
Re: Building a 1988 Suzuki RM250 engine
Posted: Thu Oct 22, 2015 9:20 pm
by Sandblaster
We have parts from 4 different engines to help us in getting the best parts available.
Keeping things organized becomes a priority...
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 120.JPG (134.4 KiB) Viewed 10468 times
And how can you decide which part to use unless you have clean parts to inspect?
- OEM-CYCLE.COM 1988 RM250 ENGINE REBUILD 121.JPG (53.54 KiB) Viewed 10468 times
I think Jason is OCD sometimes
