A few questions

T

Tyler125

Member

Feb 3, 2008

31

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• Feb 25, 2008

• #1

Just a few questions about eveything. I have a 93 CR125.

1)Does performance or reliability get affected by spark plug brands? Ive heard NGK's are great.

2)How often should Wheel Bearings be changed? How do you know when they go bad?

 

Someone

Member

Mar 12, 2001

865

0

• Feb 25, 2008

• #2

1) Reliability maybe, but I don't think your performance will vary. I do use the stock NGK plug in my bike however.
2) Your wheels will wobble and move side to side more than ~1/14" when you shake them (perpendicular to the length of the bike). If you're riding, it feels allot like you have a flat.

 

T

Tyler125

Member

Feb 3, 2008

31

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• Feb 26, 2008

• Thread starter
• #3

ok, thanks for the input. I didnt clarify my spark plug question, do copper or the pricy platinum plugs change anything? That was what I was meaning.

 

Someone

Member

Mar 12, 2001

865

0

• Feb 26, 2008

• #4

That I don't have a clue about. I do doubt that the more $$$ plugs do much more than last longer if you're properly jetted.

 

R

rmc_olderthandirt

~SPONSOR~

Apr 18, 2006

1,533

8

• Feb 26, 2008

• #5

Tyler125 said:

ok, thanks for the input. I didnt clarify my spark plug question, do copper or the pricy platinum plugs change anything? That was what I was meaning.

Click to expand...

I know of one bike (but I can't recall which one it was) that had an "issue" with how they designed the cylinder head. It required that you use the expensive plug because the cheap plugs would have the ground tab (the bent metal that reaches over the tip) break off due to excessive vibration.

If you are running a two stroke it can be argued that the premium plugs resist fouling a bit more than the cheap plugs, but for the price difference you could put a new cheap plug in every ride and still be money ahead.

Otherwise, I sure don't see the advantage of a premium plug in a dirt bike. In your car, yes. Put it the expensive plug and it's good for 50,000 miles. Worth it.

Rod

 

T

Tyler125

Member

Feb 3, 2008

31

0

• Feb 26, 2008

• Thread starter
• #6

ok, I just figured it would be worth asking as cars do tend to run better on specific plugs.

Also, I just put Castrol Synthetic 80W Gearcase fluid in my bike, is that a good enough oil for my CR?

 

V

VISaki

Member

May 25, 2008

45

0

• Jul 25, 2008

• #7

as long as its a synthetic its good 80w is a lil thick but should be ok...things will just move a lil slower rather than a thin high output oil.