CARB QUESTION..

h2al · Post by **h2al** » Sun Jun 10, 2012 5:03 pm

On COMPLETELY STANDARD H2 AND H2C, what do YOU have YOUR needle clip setting on, and why?
Thanks, AL.

Post by **Wolfie** » Sun Jun 10, 2012 7:21 pm

It should be on whichever clip the bike is happiest with.

downpipe3 · Post by **downpipe3** » Sun Jun 10, 2012 7:33 pm

Wolfie wrote:It should be on whichever clip the bike is happiest with.

try it on top first AL then on bottom that should give you a indication of which way to go

h2al · Post by **h2al** » Sun Jun 10, 2012 9:49 pm

Ok lads, thanks....what i'm gettin at is this-
would altering the needle settin affect -
1/- the low speed/ off, just on the throttle surgin probs
(yes i know 'they all do it') and
2/- after you've had a high speed blast, then come to a stop, then set off again,the bike feels like its runnin out of petrol , until it 'settles' down and runs normal again.
I re set the carbs to see off problem 1, and also altered the needle clip settin which was originally on the bottom (5) settin to the middle settin (3). This then gave me problem 2 and also i have now to 'rev' the bike a bit more to set off the line as it appears to have gone flat feelin low down but then flies from 3000 revs on.(goin back to the 70's i remember h2's doin this on basically 'brand new carbs/unaltered settins' from new)
SO... has alterin the needle settins caused this... or is it just me

blackhat400 · Post by **blackhat400** » Sun Jun 10, 2012 9:59 pm

Aye al" i upped my pilot jets to 45. Solved the surging ,

scouse · Post by **scouse** » Mon Jun 11, 2012 7:16 am

check your throttle cable is perfect, if it has a break or a kink between the end that goes into the carb top and the black outer sheathing then you will find the bike will take time to settle down to idle

as Blackhat said you can dial the surging out

also check for an air leak

for an understanding on what part of the carb does what here is a good guide
http://www.iwt.com.au/mikunicarb.htm

GaryT

stevie747 · Post by **stevie747** » Mon Jun 11, 2012 4:01 pm

h2al wrote:On COMPLETELY STANDARD H2 AND H2C, what do YOU have YOUR needle clip setting on, and why?
Thanks, AL.

I think they're set on the middle groove out of the factory.

I improved 'fluffy' running on part throttle (which felt too rich) by dropping the needles one position (two from the top) and it cleaned it up nicely.

Running 105 mains, Higgsy pipes and standard airbox :smt023

h2al · Post by **h2al** » Tue Jun 12, 2012 12:32 pm

quote- 'after you've had a high speed blast, then come to a stop, say at traffic lights, the bike sounds/ feels like its runnin out of petrol , until it 'settles' down and runs normal again.'

Anyone else have this problem ?

Steve Rowden · Post by **Steve Rowden** » Tue Jun 12, 2012 6:44 pm

My thanks to Scouse for putting the "carb theory" link in. Even a dumb clut like me can now understand how the blasted things work.
Ta. Steve

BIG H · Post by **BIG H** » Wed Jun 13, 2012 9:51 am

h2al wrote:quote- 'after you've had a high speed blast, then come to a stop, say at traffic lights, the bike sounds/ feels like its runnin out of petrol , until it 'settles' down and runs normal again.'

Anyone else have this problem ?

Check float heights & fuel flow through fuel tap.

Mr Boring · Post by **Mr Boring** » Wed Jun 13, 2012 8:33 pm

Al, if it's the H2c that is 'gagging' and unresponsive after running hard-give your oil pump setting a check over.

Also make sure the oil pump cable is not sticking leaving the pump cable quadrant stuck-either way it could be that too much oil is feeding to the float bowls at low revs-giving poor pick-up for a while.

Not too sure about the H2 though !

Sounds like you need to check air filter clean, fuel heights, jets are clear etc.

Kawasaki Triples Club

CARB QUESTION..

CARB QUESTION..

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