burnt oil, brown coolant ... 06 tank 250cc By sivel27 (Read 2,368 times)

[Bashan]

You mean this gear?

That has nothing to do with the water pump. It connects the starter to the starter clutch. The water pump impeller should not turn freely except when the right crankcase cover is removed and the pump shaft is still in the cover. Then it's not connected to the oil pump shaft so it turns freely in the cover. If the oil pump chain were off it would also turn freely. Something is rotten in Denmark here me thinks. Rich

[sivel27]

yup. thats the gear. when i put the the case back on, it (impeller) does not spin freely.
all is well in tinseltown then. im hoping to get my master cylinders today. received the
gaskets , air filter, and exhaust gasket yesterday. this weekend the wife and i are going
to the msf class all weekend. pretty pumped about that.

as to the floribama lounge .... ive never been there, but it was mentioned in a great book
i just finished by tim dorsey - hammerhead ranch. im hoping to work on the scoot later this
evening, and the pics will follow.

thanks again for taking the time to point me in the right direction rich. you are a wellspring
of knowledge as they say.

updates will be forthcoming.

thanks again,
mike

[sivel27]

ok, so i installed the gaskets, however i see that there is black wetness all
over the spark plug, including the threads. i changed the oil during all of this.
is it possible to be bad piston rings ?

any thoughts ?

[Bashan]

Sure it's possible, but the rings wouldn't get oil in the coolant. So you've started it since you installed the gasket? Was the plug doing that before you installed the gasket? Is the exhaust smoking? Do you know how to check compression?

[sivel27]

Jun 20, 2014 10:16:20 GMT -6 Bashan said:

Sure it's possible, but the rings wouldn't get oil in the coolant. So you've started it since you installed the gasket? Was the plug doing that before you installed the gasket? Is the exhaust smoking? Do you know how to check compression?

i have started it since gasket install. prior to gasket install, it was black but dry. as to the compression,
ill have to rent that from the auto parts store. the bike wont turn over. i hear the gear spinning, 
but it wont "catch". not even close. ill have to record it and upload it.

thanks,
mike

[Bashan]

You mean the starter is spinning? So the plug was black before the rebuild? That was from the head gasket. Let's not worry about that until you get it running again. So hold off on the compression kit. Since the idler gear fell off when you were working on it I suspect that has something to do with the starter. You may have to get to the starter again and see why it's not engaging. Rich

[sivel27]

ok, well i dont know how much this will help but ..


View My Video

[Bashan]

There was only audio. Is the crank turning? You can remove the spark plug and feel air blowing out if the crank is turning. If the crank isn't turning the starter isn't engaging the idler or the starter clutch isn't engaging.

[jct842]

If the engine is turning over you may have a valve that is not closing. It sure does not sound like there is compression if it is turning over.

[sivel27]

Jun 21, 2014 10:47:52 GMT -6 Bashan said:

There was only audio. Is the crank turning? You can remove the spark plug and feel air blowing out if the crank is turning. If the crank isn't turning the starter isn't engaging the idler or the starter clutch isn't engaging.

ok, so i can feel a nice gust of air. im thinking maybe its the valves. i have tried to follow the manual, but im doing it wrong.
when i removed the cam chain from the sprocket, i did not note the position. i have removed the inspection hole
from the right side crankcase, but i cannot see the mark on the flywheel. i can see the tdc mark on the cam gear.

 i cannot unscrew the inspection bolt on the top of the valve cover. too tight, and the bolt just chips  when i try to open it.
im at a total loss. im assuming not noting the the chain position relative to the flywheel mark is my issue.

mike

[sivel27]

ok, so i did the "yardogs way" of adjusting.

scootdawg.proboards.com/thread/15019

i noticed when i try to fully turn the variator, about 3/4 of the way around, there is
some serious resistance. i do this with valve screws fully loose. im thinking maybe
i may have stretched my piston rings too much when removing / installing them. as for the
resistance, i can turn past it, but only with quite a bit of force. is that normal ?

mike

[Bashan]

If the plug is in you will get a lot of resistance on compression....that's normal. If the plug is out we have a problem. It would have been easier if you had marked the position of the cam to flywheel but you can still get it timed right following a guide. If the valves are out of synch or too tight you may be getting no compression and that's why it's freewheeling like that. If the variator is turning when you hit the starter, it's engaging. If you have the plug in while trying to do these things...take it out.

You've got to get the cam synched to the crank or adjusting the valves is fruitless. You have to get the valve cover off. That bolt won't let you? I'm not sure what you're saying.

Synching them is easy....did you see this part of the manual. You have to get the T mark right and position the cam as they describe.

[sivel27]

as for the bolt, i mean the "inspection hole" bolt on top of the valve cover.
its a large flat head screw.
the variator spins, and i can definetely feel a gust of air when cranking
with the spark plug out.

how can i sync the cam to the crank ? i mean, i already messed up the "marks"
on the cam as far as lining them up. do i want the lobes of the cam "flat" on top,
or what ?

thanks,
mike

[sivel27]

ok, got it aligned. found the t mark on the wheel. all aligned, still the same.
got a brand new sparkplug, cranked it a few times, checked the plug. bone dry.
still searching. not giving up just yet.

[Bashan]

Don't give up, these things take time. OK, you've got the cam and crank synched. Now we need to see if we have spark. Hold the electrode of the plug against the valve cover, or any good ground, kill switch to run, and crank the motor. Do you see a nice blue spark?