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Online NMKawierider

Re: Zforce 800 Crack but no start
« Reply #15 on: October 09, 2018, 11:19:48 am »
you aren't supposed to oil the foam cover on a paper filter. See above post, very likely.
No..never..absolutely not. But he says he had the Uni so....
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Offline REDRIDER

Re: Zforce 800 Crack but no start
« Reply #16 on: October 09, 2018, 01:02:28 pm »
you aren't supposed to oil the foam cover on a paper filter. See above post, very likely.
No..never..absolutely not. But he says he had the Uni so....
oops I read "sock" filter as "stock" filter. Still if it started right after spraying oil onto the filter too much may have been sprayed. isn't there a sensor in the intake tube? I'd pull it and clean it first.

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Offline CCALF

Re: Zforce 800 Crack but no start
« Reply #17 on: October 09, 2018, 01:33:59 pm »
Symptom: Oiled filter, engine ran for a bit and then stalled and won't start.

My first guess would be that oil got on the T-Map sensor and the sensor is now sending wrong data to the ECM.

First step is to inspect and clean the T-Map sensor. Use a cleaner specifically made for the purpose.


I have previously cleaned the tmap sensor with carb cleaner. My machanic said carb clearner works fine. He also said it could need a value adjustment but they are backed up two weeks.....

Filter is NOT paper, its a foam uni filter. As i stated before I have oiled several times before with no issue.

I just checked the oil and it smells like gas. I spoke to a machanic friend who suggested I change the oil and filter before trying to start again.


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Offline REDRIDER

Re: Zforce 800 Crack but no start
« Reply #18 on: October 09, 2018, 01:57:05 pm »
The compression really needs to be checked. You can usually borrow a tester from an auto part store but if it is under warranty I wouldn't even touch it, I would send it to the dealer at this point before you get too deep into it and they start pointing fingers at you for touching it.  Not sure if it's under warranty you said you bought it 3 months ago but was it bought new?

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Offline CCALF

Re: Zforce 800 Crack but no start
« Reply #19 on: October 11, 2018, 05:29:58 pm »
The compression really needs to be checked. You can usually borrow a tester from an auto part store but if it is under warranty I wouldn't even touch it, I would send it to the dealer at this point before you get too deep into it and they start pointing fingers at you for touching it.  Not sure if it's under warranty you said you bought it 3 months ago but was it bought new?

UPDATE:

Unfortunately its not under warranty.

I have narrowed the the issue down to a stuck injector. Injector is stuck open which is dumping fuel into the engine causing it to flood and to foul the spark plug.

I havnt gotten it started (waiting for a second hand) but ive gotten my best results with starter fluid and both injectors unplugged.

Please let me know if you have any suggestions on starting with a stuck injector.


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Offline ctdls

Re: Zforce 800 Crack but no start
« Reply #20 on: October 11, 2018, 07:27:16 pm »
How have you determined the injector is stuck?

ZF 800 LX Trail, stock for now.......not for long.

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Offline Ukhozi

Re: Zforce 800 Cranks but no start
« Reply #21 on: October 18, 2018, 07:06:15 am »
Foam covered paper filters must remain dry, only Omniflow or TwinAir all-foam filters are oiled.

Have you checked the valve clearances?  Sounds like classic tight valves.  you have ignition, fuel and timing, so whats left? Compression.

No feelers? No problem, unlock nuts, turn screw all way down to lightly touch the take 1/4 turn out on inlet and 1/3 turn on exhaust, that is 0.10 and 0.15. Also known as , "a Little bit and a little bit more". :)

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Offline glenlivet

Re: Zforce 800 Cranks but no start
« Reply #22 on: October 19, 2018, 11:39:30 am »
Please don't use starting fluid in a gas engine. Nothing removes the oil film on metal better than this stuff, in fact I use it on freshly machined 'show' metal items to remove finger print oil.
The stuff is meant for diesel engines that have too low compression to create enough heat to fire.
In gas engines it's poison, and can make years of wear happen in seconds.
Just sayin'. :)

For a nation to believe it can tax itself into prosperity is like a man standing in a bucket and believing he can raise himself by pulling on the handle - Winston Churchill

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Offline Ukhozi

Re: Zforce 800 Crack but no start
« Reply #23 on: Today at 08:25:09 am »
compression test would be next on the list

You can get a decent reading but still have tight valves as in zero clearance. 1/4 turn out inlet and 1/3 turn out exhaust will do it.