fzr 600 1990,question from Italy, New Question!

[akronos]

Hello all! I have bought a 1990 fzr 600 and i notice two parts,exactly front calipers and speedometer....It's from a late model or correct for the year (1990)?

[Gizzard1533]

Theres for the correct year mate. The speedo was designed like that so you could take the speedo bit off for when you raced them. The calipers where just am upgrade from the 2 piston calipers on the earlier models.

[akronos]

thanks for the answer.Can you post me a calipers with 4 pistons?

[Clanky]

Hi,

What you have on your bike are four piston calipers, there are two pistons on each side of the disc (two on the outside and two on the inside).

Picture of two and four piston calipers:



Regards

Nigel

[akronos]

Ok! Thanks a lot. i think the previous owner swap the calipers with recent model or not? i don't understand if it s 1990 have 2 or 4 pistons..

[akronos]

i've found 4 DPR9EA in my Fzr 600....How it's possible?! Are for yzf 750.....it is a problem for engine?!

[Clanky]

Hello,

Someone has put spark plugs in with a larger thread size (12mm) so going back to the correct grade plugs (10mm) may not be possible without having the threads in the head repaired.

Here is a link that will give you some more technical information about the NGK plugs:

[url]http://www.ngksparkplugs.com/techinfo/s ... ey.pdf/url]

CR9E are the stock plugs so they are similar in some ways. I do not know if the differences will cause any problems.

[DonTZ125]

+1 to clanky - don't worry about the plugs. Someone seriously screwed up that head, but at least they matched all the plugs.

[akronos]

i have a problem....i cleaned carburetors,change spark plugs,change coil and wiring but.....over 6000 rpm the bike bogs down....at the low rpm it's perfect the engine rotate perfect until 6000 rpm....

I sync the carb,cleaned all internal parts....rotate the mix screw 3 turn out....

What can i DO???