just refuse to start

[jsbulat]

Water Warrior,
I am also suspicious kind of a guy. But the guy did not touch it. He looked at the tire and said that it needs replacement and he does not have such exotic tire.

[jsbulat]

Thank you Rookie Rider, that is very nice. I will try to do carb cleaning and valve adjustment this weekend. And if this does not resolve issue, i will really appreciate some help in person.

[Water Warrior 2]

Originally Posted by jsbulat

Water Warrior,
I am also suspicious kind of a guy. But the guy did not touch it. He looked at the tire and said that it needs replacement and he does not have such exotic tire.

Exotic !!!!! No problem. I'm sure our members who have replaced tires will chip in with suggestions of what to buy and where to buy.

[mrlmd1]

By the video - It sounds like your bike is turning over a little slowly when you try and start it. Charge up the battery again before you run it down more by repeatedly attempting to start it. Sometimes that can be one of the problems (a weak battery). and there is no significant charging at idle or slow speeds. You need a good, charged battery for the bike to run, then we can work on what sounds like a dirty carb problem. Have you tried to put some Berryman's B-12 or Seafoam into the carb and let it soak overnight, and add some to the fuel (1 oz/gal) to try and clean it that way before taking it apart?

[raul10141964]

clog main jet will aloud to idle but not rev
clog flout nidle will file like run out of gas

[jonathan180iq]

Originally Posted by Water Warrior

... will chip in with suggestions of what to buy and where to buy.

Cut from the following link: http://gz250bike.com/forum/viewtopic.php?f=9&t=1058
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~

There aren't many tire options for our bike that come in a matching set. There are, however, many options if you don't mind mixing up tire brands and/or going to a slightly smaller tire up front.

The factory tires sizes are: 110/90-16 (F) & 130/90-15 (R)

The rim width for the front wheel is 2.5" and the rear wheel width is 3.0"
That being the case, a size 100/90-16 front tire will work on this bike. It does have an overall diameter decrease of 9mm over the 110/90-16 but that isn't really very drastic.

Samato has verified that alternate tire size 100/90-16 will mount up with no problem.

As well, the 120/80-16 alternate tire size is another choice for the front tire and has been successfully mounted by MRLMD1.

Factory replacement tires: 110/90-16 & 130/90-15
Dunlop D404 (only available through a Suzuki dealer)
Metzeler ME77 (only available through a Suzuki dealer)
Cheng Shin C906 & C907 (possibly no longer available)

Rear Factory Replacements:
Kenda Challenger
Pirelli MT66 (Route 66)
Maxxis M6103
Cheng Shin Marquis
Metzeler Me 77

Factory Replacement Front:
GBC Green Shark
Metzler Lasertec
Pirelli Sport Demon
Avon Roadrider AM26
Conti Ultra TKV11
Kenda K671 & K673

100/90-16 Front:
Bridgestone BT45
Maxxis M6002
Cheng Shin C6000
Kenda Cruiser
IRC Durotour

Matching tires with low profile front: 100/91-16 & 130/90-15
Kenda Cruiser



For more discussion and lots of info, see these posts:

viewtopic.php?f=10&t=722

&

viewtopi ... =10&t=1818

[jsbulat]

Jonathan, thank you for the links, I will definitely follow recommendations... once i get bike running

[jsbulat]

I did not make it today completely - only clean carb and check gas filter. It looks looks i found the problem: even overall carb looks very clean, the tip of needle valve was covered with white goo. I hope this was the problem. I did not have a chance to try it running yet though.

Also i was trying to check valve adjustment but i am having troubles with it.
1) Manual states: Rotate the crankshaft with a box wrench. I do not have a box wrench and i do not know what to buy. What size should it be? (I had to adjusted crankshaft by by pulling bike on the first shift engaged until "T" aligned with arrow - don want to do it ever again).
2) Images in the manual are very blurry and misleading and i cant understand where should i measure the clearance between the
valve stem end and the adjusting screw on the rocker arm. I was trying to measure "A" and "B" (see pic f1) but no successes. Could you please point me to clear explanations how should i do it?

[Rookie Rider]

You can try an adjustable wrench too.

[blaine]

Measure between valve stem & adjuster.