Maintenance & Technical > KX500 Original

86' Motor w/o power valve recommended?

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sepp00:
Hi, I want to buy a KX 500 engine and its '86 or '87 without power valve. In my country its very hard to find any KX500.
So what can you tell me about that engine year? Durability? Parts? Power?
Would you buy one or should I absolute wait for a 88-03 engine?


Thanks alot.

motopunk:
hi... your nickname sounds, like you´re from bavaria, germany..  :wink:


kx500 engines: 83-84 kx500 A1, A2---aircooled ,
                     85 kx500 B1---first watercooled ,
                     86-88 kx500 B2, C1, D1 ---the 3. engine-generation and in 86 the first powervalve came in ,
                     89- 2004 kx500 E1- E16---the 4. engine-generation with the smaller cylinder and the newer powervalve.

                     you could compare the parts and diferent years here  : www.cmsnl.com

dave916:

--- Quote from: sepp00 on July 15, 2013, 10:10:43 PM ---Hi, I want to buy a KX 500 engine and its '86 or '87 without power valve. In my country its very hard to find any KX500.
So what can you tell me about that engine year? Durability? Parts? Power?
Would you buy one or should I absolute wait for a 88-03 engine?


Thanks alot.

--- End quote ---
You cant buy new power valves for 86/88 motors , 
89on motor are the best ,more power,and parts still available

yeomans:
Contrary to popular belief the 86-88 power valves do show up on ebay fairly often.
Your best bet is buying a used cylinder with them still inside.(theres a few on ebay right now)
You can't buy them new from dealers anymore as they have been discontinued.
Nothing wrong with the early motors except the parts supply is limited.
Power valves, cdi's and kickstarts are the hardest parts to track down.

sepp00:
Hello, yes I'm from Germany (not baveria ;)

The seller does not have large tech knowledge but he told me that his engine has NO power valve but is water cooled. So it must be the 85'?
I can not say it exactly cause it is in a 96' frame.

Whatever. What do you say about 85 engine? Is the newer one better at all?

Can you see what year it is? No KIPS Logo = 1985?

Ah, another problem: The 4th gear get out at load. It needs repair. I found a used transmission complete for about 150$ from 92 model. Do that match to this one?

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