|
Enduro Engine - 2 stroke Cylinder, Piston, Tranny, Bearings, Clutch, Pipes & Silencers, etc. |
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
EC200 wont start - PROBLEM SOLVED
Just had a complete rebuild, top to bottom, all worn parts replaced.
Bike started 2nd kick and ran absolutely perfectly for ten minutes, then suddenly cut out while riding down a road in fourth gear, as if it ran out of fuel. Here are the things i've checked/done so far: -Checked for spark, its a bright blue fat one (even changed the plug as a precaution) - Checked all ignition cables - Cleaned carby (jets and all) and checked for blockages in fuel line - Drained all old fuel (was four months old...) from fuel tank and replaced with new fuel - has a brand new air filter, freshly oiled - checked reed valves - disconnected kill switch (has a brand new one) and kicked it over, no luck. - plenty of compression (haven't checked with a gauge but you can feel it when you try to kick it...) Feels like i've checked everything! It just wont start... Last edited by Skele; 09-03-2009 at 08:45 PM. |
#2
|
||||
|
||||
Quote:
BUT, it is not the fuel cap blocked therefore not allowing vacuum for fuel??? Try releasing or undoing cap and see what happens. Had similar occurances on a road racer. Cheers Mark |
#3
|
|||
|
|||
Flywheel key?
__________________
Ross '05 MC 250 '91 Husky 610wxe '04 Duc M800 R.I.P '06 Duc S2r 1000 R.I.P '07 Duc S2r 1000 still rubber side down... ---------------------------------------------------------- May be so... May be not so... My Website |
#4
|
||||
|
||||
Turn the gas on!
It sounds like you covered all the bases but then again I'm no expert. Check the carb boot for air leak???
__________________
2005 YZ 250F |
#5
|
|||
|
|||
I 2nd this idea. Or loose stator and the timing slipped? All of this had to have been removed for the bottom end part of the rebuild. Some on this board have even had issues with the left side crank seal falling out after a poor installation.
Let us know what you find. Good luck.
__________________
jeff '00 XC250 (mine) LTS front and rear suspension, power valve cover, carb jet kit and rear chain glide, RB Designs head mod, BRP tall triple clamp, backyard foot-peg lowering conversion. '04 EC250 (the kids) (he can do his own mods haha!) |
#6
|
|||
|
|||
Thanks for the replies guys.
Quote:
Quote:
Quote:
I had also pulled the side cover off to check the nut and it was tight. HOWEVER, i haven't tried pulling the flywheel off. Maybe the key was not reinserted after the rebuild? I think it was pretty wedged in it's slot though, i know i never took it out! I don't have a flywheel puller, that's why i haven't tried yanking it off yet...But i agree, it does sound like some sort of timing issue. I also realize that it sounds strange that i was in 4th gear down a road TEN MINUTES after starting it for the first time since a rebuild (i.e. not breaking it in). Only parts replaced in the bike were seals, bearings, piston rings, all gaskets and about half the gearbox (HUGE damage in the gearbox was the reason for the rebuild). So i didn't see the need for a full break in process, however i was only revving to about half the maximum revs. I was taking it very easy. I should probably also properly check the compression with a gauge. I REALLY hope i haven't got a piston seizure. I'll probably kill someone. |
#7
|
||||
|
||||
It seems unlikely that it would jump time even without the woodruff key as long as the nut is tight. Jamming the rear brake without pulling in the clutch thereby bringing the motor to a sudden stop could possibly cause the timing to move but I'd look for something simpler first. Is the plug wet after you've cranked it for awhile? Does it sound like it tries to start? If the answer is no and no then you've probably got a fuel problem. If you know you're getting fuel to the carb it might be good to double check the main jet to see if it's blocked.
|
#8
|
|||
|
|||
Quote:
In a similar post on another forum someone found that their spark plug was not getting wet. Someone suggested that they throw a bit of fuel in chamber and see if it fires up, which would show a fuel blockage. Is this a good idea? will that actually work? The bike doesn't seem to try and start at all. Holding in the kill switch while kicking it over doesn't seem to change the number of times it turns over when i kick it either. UPDATE: Pulled the pipe off, no evidence of a seizure. Fuel sprays out the exhaust port if i kick it over numerous times, so there is obviously fuel getting to the chamber. If i kick the bike over a few times and then pull the plug out i find smoke in there so SOMETHING is getting ignited. Next check could possibly be for an air leak? Last edited by Skele; 09-01-2009 at 03:41 AM. |
#9
|
||||
|
||||
Go through your electrical again. You can see a spark, but that does not mean it will fire under compression. Start with the HV coil wire connections at the coil and cap. Check grounds as well. The potential timing issue is a good point too. Look for problems where you have been last.
|
#10
|
||||
|
||||
The old '3 things to make an engine go' rule applies.
You've got compression,--new top end. You've got fuel,from observation re exhaust port. Have you got spark?? with the plug fitted and wire on.GMP in above post describes it well.The HT lead if rubbing against metal or water hose will leak into them ,than fire the plug under compression. Even with timing out,it maynot run but backfiring of some sort will occur if the above 3 areall there. |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
2005 FSE450 wont start | itsagas | Enduro Engine 4 stroke (including EFI & Exhaust) | 5 | 05-16-2010 08:38 AM |
EC200 kick start lever (2000 model) | sireid | Enduro Chassis & Body | 11 | 01-24-2010 02:56 AM |
02 EC 300 wont start | GENO 300 | Enduro Engine - 2 stroke | 0 | 09-21-2009 10:02 PM |
wont start | clerky clerk | Enduro Engine - 2 stroke | 8 | 11-01-2008 01:18 PM |
2000 Xc 250 wont start In mesa arizona | justinmanus | Enduro Engine - 2 stroke | 9 | 12-25-2006 04:46 AM |