Sorted out the jetting had 140 went up to 150 bike runs clean all the way up with good plug color.

Other problem still remains though.

In order to start the bike i remove the lower cylinder plug and poor some fuel inside. Then the bike starts form first kick. If i switch off the bike it can start again after lets say 10-20 min.
Now if i try to start the bike the next day all the same again.
I've checked the tank breath ok, The carbs are clean ok, i have a strong spark, what is suspect is that the bike doesn't draw enough fuel at kick.
Is there any possibility would be a blocked air solenoids?
The compression feels good, even if i dint make a proper check. And when the bike starts it runs really strong,

I have an MC18 flywheel on the my MC21 does this have any relation due to less advance?

Demetris

My MC21 was a pig to start from the day I bought it, 12 years ago.

Only since the latest rebuild has it been better, but it's still not a great starter.

Fontyyy on the other hand (as well as some others) can start his by hand!
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Andy.
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Strange indeed..

I gues i have to live with this.

Demetris

I've had ones that you can start by hand, one 28 I had starting first kick with a tiny bit of choke when it was -10 here one morning!

My current one is complete biatch to start and usually involves rolling down a hill to bump start... I wouldn't think anything is wrong with yours. just make sure you don't use any throttle at all for the first kicks.
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NSR300R - Why did i ever have a 250...

My 16 with 18 top end starts 1st kick every time and when its warm by hand 1st time every time

Spark head range in winter maybe?

winter you can say that again!!6 inches of snow outside my doorstep

Gixer

I mean is spark plug heat range has to do with starting problems in winter?

Demetris

what starting problems in winter

BR9ECM in top cylinder head, R5300-10 in the (HRC) lower cylinder head... 5 degrees the other afternoon... started!

Before the rebuild, BR9ECM in both cylinders (as specified by Honda). I would strongly recommend against messing with plugs to try and solve a starting issue.
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Andy.
NSR-WORLD.COM

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Good

Thanks Guys

Demetris

Hey Demetris,
i could take the plugs out and my bike would still start first kick when cold!
It doesnt look as nice as yours though

Thanks Gixer

Will try my best to make it look nice in the inside as well

Both my bikes get a shot of dieselstart if they've been standing more than a month.
If started regularly, they start start ok, but not always at first kick.
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Poul
"If Life Gets Boring, Risk It!"
MC21SE, KISS box
MC21SP, HRC box, racing loom

My '18 starts pretty much 2nd or 3rd propper kick if its used every other days or so, If its been stood over a week it normaly takes a few more. Needs a little throttle when hot but starst 1st or 2nd kick

The '21F3 starts pretty much first bump with a bloody great BING!

Edit: tsk, spelling
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If I have to take the carbs off once more...


Last edited by StephenRC45 on Thu Feb 08, 2007 11:36 pm; edited 1 time in total