KAWASAKI KH & S SERIES FORUM

BIG AL · Posted: Thu Mar 05, 2009 11:03 pm Post subject:

Marc
Are you looking for a modern or classic style type of tyre.

Cheers
Al

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BIG AL
If All Else Fails (Hit it with a big hammer)

Marc · Joined: 11 Feb 2009 Posts: 22 Location: Boston, Ma

Im pretty open about that. Would a modern tire handle any better? I am not concerned with the look of the tire but I would like something safe and comfortable.

Marc

ja-moo · Posted: Fri Mar 06, 2009 6:49 am Post subject:

BT-45's 90 front 100 rear

Marc · Joined: 11 Feb 2009 Posts: 22 Location: Boston, Ma

I am not familiar with 90 and 100 sizes does that mean a front tire is 90/90 and a rear is 100/90?

simonh · Posted: Fri Mar 06, 2009 8:31 pm Post subject:

yeh, but i'd go 110/90 or 110/80 rear :D

Marc · Joined: 11 Feb 2009 Posts: 22 Location: Boston, Ma

Hello,

My s1 is finally running great on 3 cylinders. I have ridden it and it has great power for a 250. I ordered new tires and i will install them and replace the fork seals on monday.

My one question is how do I get the cylinders to fire at similar temperatures? I dont know if it is important but i would guess they should be close. The left cylinder is the coolest, the middle is the hottest, and the right is in the middle. I understand that the middle will naturally run a bit hot because it has fewer sides exposed to fresh air but what should i do?

The Wolfman · Posted: Thu Mar 12, 2009 8:50 am Post subject:

Is that temperature difference when standing idling or after a run?
there should be very little temp difference on the centre one after a run.

Idling:- then adjust the throttle stops to even up the tickover.

After a run:- clean and set up the carbs as per the manuals (not Haynes tho).

Can't harm to confirm the timing is spot on too.

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Marc · Joined: 11 Feb 2009 Posts: 22 Location: Boston, Ma

I know that the air screws should be 1.25 to 1.5 turns out but what about the throttle stop screws in the top of the carb? when set evenly, the bike will either idle too high or not fire on 3 cylinders. What is the best way to set those?

also, the temperature difference is both at idle and after a ride. I will try to check the timing on monday also just to be sure.

Thanks,
Marc

The Wolfman · Posted: Thu Mar 12, 2009 9:15 pm Post subject:

Hi Marc, when what 'is set evenly'? the adjusters will almost certainly be at different heights once set up properly.

there could be any number of small problems in any combination that cause uneven running.

Cleaning the carbs is always a good start, making sure that the float valves work properly and the float heights are somewhere close.

I set tickover by slackening the cable adjusters until the cables can be lifted slightly on top of the carbs without pulling the slides, then using the old hand over the exhaust pipes I set the throttle stops until the three cylinders are all popping pretty evenly at just below 2000rpm, I can never get them to feel perfect.

Once I am happy with that, I turn her off and using three tywraps in the carb mouths and under the slide, I adjust the adjusters so that all the slides lift off at the same instant and leave the tywraps in place until after the adjusters are locked.
Using tywraps, spoons, whatever, amplifies the movement of the slides, its so sensitive you can even allow for tightening of the cables bends..

Other people recommend setting the adjusters first and the lift off second, I asked a while back but no one explained why.
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I used to be a Werewolf, but I'm alright Noooowwwwww!!

Marc · Joined: 11 Feb 2009 Posts: 22 Location: Boston, Ma

Hello Everyone,

Do you know what kind of fuel milage an s1 should get stock? I am only getting 20 miles per gallon..... Is that normal?

-Marc