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View Full Version : bought a lrd/psi stroker motor, any buddy have any info?



jhtrx250r
02-07-2011, 09:53 PM
I bought a parts motor to rebuild, it is a stroker motor and the jug has PSI stamped on the bottom of the intake, and a LRD set of #s on the inside of the intake.
Here is what I know, it has a LRD cool head with a 26.5mm dome
It has a stock cylinder re sleeved with a big bore cylinder current bore 72.5mm
it runs a standard spacer plate but the cylinder sleeve sticks out of the jug and goes into the head a few mm
it had a reed spacer as thick as 4 cylinder spacer plates, that is twice as thick as any one i have ever run.
has o rings in the cylinder and sleeve, no head gasket.
crank has been rebuilt and pin was moved outward.
Cases are trenched for stroker other than that every thing else looks normal, OE 89 cases,gears and, internals.

I put in a few pics
Any Ideas?

jhtrx250r
02-07-2011, 09:54 PM
the crank

jhtrx250r
02-07-2011, 09:55 PM
porting

jhtrx250r
02-07-2011, 09:56 PM
more porting

trx293pv
02-08-2011, 09:54 AM
that dude ought to run pretty good

jhtrx250r
02-08-2011, 10:17 AM
The cylinder also has some rear support braces welded in

Honda 250r 001
02-08-2011, 10:35 AM
Thats a nice cylinder!!! looks like it has had some quality time spent on it! Id keep it and run it!

trx293pv
02-08-2011, 10:35 AM
must be to allow for bigger transfers without the cylinder mounts breaking off.

jhtrx250r
02-08-2011, 10:41 AM
Can you guys tell me anything about the crank? I know the pin has been moved toward the out side but dont know how to tell the stroke?

Honda 250r 001
02-08-2011, 04:47 PM
Its most likely a +4. The pin will be moved 2 mm outward from stock if its a +4 mm stroker.