[boogieman38]

numbers on the rod are Ka4 -5

 

[Big_Mike]

That may be an 87' -89' OEM long rod, just my guess...

 

[boogieman38]

do I need a spacer im putting on a esr 310 power valve set up for short rod

 

[Big_Mike]

If I am correct and that is the right I mentioned, I do not know, I am sure some can tell you for sure!

 

[Hurley250R]

LONG ROD 130.3

Appears to be a OEM Long Rod. And you would need the spacer

 

[boogieman38]

like this im going to dry fit it to make sure piston is not comming out of the top

 

[boogieman38]

Is this look like the right spacer

 

[muskoka trx250r]

Go on esr and they will say size needed for 87 long rod. I think it is .190 spacer. In the pics that my spacer for my esr 330

 

[acecarlos]

Is this look like the right spacer

Measure it, for a Long Rod it should be 3/16", or .1875" plus two .50 MM (.020") base gaskets. 1/4" spacer plates normally are used only on plus 4 or 5 MM stroker cranks.

Short rod cranks do not need a Spacer Plate....FYI

Carlos

 

[boogieman38]

K thats what is was thinkin my spacer looks really think is There.anyway I can find out with the numbers on the rod and what am I measuring

 

[boogieman38]

So I guess the question is .us there a diff.between 86 89 rod and if so do I need to run a spacer if There.is

 

[acecarlos]

85 and 86 cranks have Short Rods, 87 to 89 cranks have Long Rods.....use a Spacer plate on BB cylinders with Long Rod cranks. FYI...al Short rod 250R cranks have the same Length Rod from 85 to 86, and all Long Rod cranks have the same Long Rod length from 87 to 89.

Carlos

 

[boogieman38]

Ok so I'm trying to identify the rod I do a search Honda 250 r rod ka4 and its shows what your stating 85 86 rod trx and atc can you help me identify this and confirm please and if I dry fit this will the piston pop way above the top on a long rod

 

[acecarlos]

KA4 rods are Short, 85 and 86....NO Spacer plate needed.

HA2 rods are Long, 87 to 89....3/16" Spacer Plate needed for normal BB builds.

No, with the short rod KA4, NO Spacer Plate is needed, the piston outer edges should be below top deck, or even with the top deck.

Carlos

 

[boogieman38]

Thank so much for confirming.Carlos.