FZR600R Won't Start

scanty · Post by **scanty** » Tue Apr 12, 2011 5:37 am

Could it be this causing me problems?

adjusted it the other day and was running fine. 2 days later -- no start.

scanty · Post by **scanty** » Tue Apr 12, 2011 5:38 am

and no start even though adjusted back. turning over, just won't fire

yamaha_george · Post by **yamaha_george** » Tue Apr 12, 2011 6:16 pm

scanty wrote:and no start even though adjusted back. turning over, just won't fire

S,
sorry mate that pic is too darn small to see what the heck you are showing us

scanty · Post by **scanty** » Wed Apr 13, 2011 1:36 am

sorted, some people say it's to adjust tickover, some say it's the air/fuel mix. whatever it is it won't be getting touched again.

scanty · Post by **scanty** » Wed Apr 13, 2011 2:44 am

may have been a bit hasty. now won't start again and me battery's dying. got the problem narrowed down, just need the juice to start it. few phonecalls gonna have to be made

scanty · Post by **scanty** » Wed Apr 13, 2011 3:15 am

that's actually the throttle stop screw

reelrazor · Post by **reelrazor** » Wed Apr 13, 2011 3:30 am

If you have cranked this thing a lot(sounds like you have) without it starting...especially once the battery gets low....I can pretty much guarantee you that you've fouled the sprak plugs.

If you want it to start, I suggest that you put some new spark plugs in it.

Autolite 4303s willl fit and are far cheaper than NGK or Denso

yamaha_george · Post by **yamaha_george** » Wed Apr 13, 2011 10:16 am

reelrazor wrote:If you have cranked this thing a lot(sounds like you have) without it starting...especially once the battery gets low....I can pretty much guarantee you that you've fouled the sprak plugs.

If you want it to start, I suggest that you put some new spark plugs in it.

Autolite 4303s willl fit and are far cheaper than NGK or Denso

+5 on that, check the carbs are synched and all should be well

scanty · Post by **scanty** » Thu Apr 14, 2011 7:31 am

now it starts, but not with the choke. any ideas why that could be?

yamaha_george · Post by **yamaha_george** » Thu Apr 14, 2011 8:50 am

scanty wrote:now it starts, but not with the choke. any ideas why that could be?

Ok now we are getting some where, she starts from absolute cold no "choke" what is the idle RPM like ?
is there aslight hesitation from idle to say 1/8 throttle
Ditto from 1/8 to 1/4 throttle?
The reason I ask is that the "choke" may be stuck open, the "choke" is not conventional on these bikes it is really an enrichening circuit with its own jets.
If they are constantly on I would expect VERY black plugs, poor gas consumption figures and the hesitations I mentioned.

scanty · Post by **scanty** » Tue May 03, 2011 10:21 am

sorted that, just a case of adjusting the screw again. now replacing the sump i cracked by over-tightening the sump plug.

new query, do i need to use Gasket cement on the sump gasket? wouldn't bother normally but i got someone telling me i have to

ronny86 · Post by **ronny86** » Tue May 03, 2011 11:03 am

scanty wrote:now it starts, but not with the choke. any ideas why that could be?

mines the same, only likes choke on for a few secs, then idles at 1-1.3 RPM

yamaha_george · Post by **yamaha_george** » Tue May 03, 2011 5:59 pm

ronny86 wrote:
scanty wrote:now it starts, but not with the choke. any ideas why that could be?

mines the same, only likes choke on for a few secs, then idles at 1-1.3 RPM

Guys,
FZR's are cold hearted machines it could be 70 in the shade and it still needs the "choke" to start maybe not for so long as when it is 32 ish

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