Will it run again.?

**rudolph** · 24th March 2008, 18:47

everything will be nice and clean

**howdamnhard** · 24th March 2008, 20:09

What he said.

Originally Posted by Henk

What he said. After all at this stage, what have you got to lose?

**breakaway** · 24th March 2008, 22:12

Something worth mentioning: the FXR150 is a 4 stroke machine.

**xwhatsit** · 24th March 2008, 22:55

Originally Posted by Ixion

I got two strokes that have run for all their lives with petroil in the sump. It'll be fine. So long a sthere's nothing that relies on pressure lubrication.

If there is anything fucked it'll be in the cylinder head, not the bottom end.

I mean, it ain't exactly a Manx Norton to start with , is it.

It does do 10,000rpm, however, which would have the dear Manx in a pile of bevel bits and cam interconnect gears.

Some people on here saw photos of my bike when I pulled the top end down when it stopped going. A steelmill's worth of metal shavings from the top end down into the sump. Cam bearings, in the head, carved to bits. The cam wouldn't even rotate. A little bit of elbow grease, a small hammer to shape the cam bearing edge, new valves and cam/camchain, scraping the filings out of the sump and flushing the oil a few times, and it cracked back into life, simple as that. I couldn't believe what abuse it had taken. It's still running, unopened after maybe 10-20,000kms (dunno, changed the speedo a couple of times); the piston still has the two dents in the top from the valves that hit.

Air-cooled singles, even 10,000rpm ones, can take quite the beating and still run. My money is on `yes'.

**gijoe1313** · 25th March 2008, 00:08

yeah, what all you guys sez!

**FilthyLuka** · 25th March 2008, 09:30

I think an issue may have been that there was THREE litres of fuel in a ONE litre sump... All that excess fluid may well have blown past and fucked the rings (heh, hence lack of compression...) Ahwell, we will see what happens.

It also appears the bike has been running for around 3000km like this :S

**FROSTY:Me** · 25th March 2008, 10:18

its alive I tell you its alive.
Ok it starts and runs now.
Left it overnight with every orifice open to the air to evaporate off the fuel in the sump and airbox.
Bolted it (sorta) back together ,therew the old oil filter and 1.0l of 10w 50 oil into it and connected the fuel back up.
and it bloody goes--No odvious bangs or clunks or Im gonna sshit myself type noises.
BUT --it will only idle.-good healthy idle thiough
Cracked the top offa the carb and the diaphram looks well and truely munched like its not fully engaged round the rim its sposed to be stuck in--methinks it also has been fuel soaked--or fucked with by someone.

So DEFINITELY neeeded--either rear of fuel tank propperly welded up OR a replacement tank
Another 1.0l of good oil and an oil filter
Probably needed a new carb Diapheram

**ManDownUnder** · 25th March 2008, 10:23

When you say it stopped... just died or did the whole (and horrible) screaming to a rapid halt, back wheel locked, eyes locked shut, in the kind of screaming panting painful cry schoolboys dream of achieving with the woman of their dreams?

Sounds like a teardown to me mate... bigends, gudgeons, bores, valveguides etc etc etc. Too many places where a lack of oil gets really awkward.

**FROSTY:Me** · 25th March 2008, 11:21

Actually heres the funny thing. I use clearish 20l ci\ontainers to dump oil into for disposal.
Just had a look at the "fuel" I dumped in there last night.
I know it was at least 3.0l of oily looking petrol.
But now its down to 1.5l of definitely oily petrolish stuff.

**EJK** · 25th March 2008, 11:23

What oil should I bring tmrw?

P.S. I think I got ripped off when buying the bike

**Ixion** · 25th March 2008, 11:27

Originally Posted by FROSTY

its alive I tell you its alive.
Ok it starts and runs now.
Left it overnight with every orifice open to the air to evaporate off the fuel in the sump and airbox.
Bolted it (sorta) back together ,therew the old oil filter and 1.0l of 10w 50 oil into it and connected the fuel back up.
and it bloody goes--No odvious bangs or clunks or Im gonna sshit myself type noises.
BUT --it will only idle.-good healthy idle thiough
Cracked the top offa the carb and the diaphram looks well and truely munched like its not fully engaged round the rim its sposed to be stuck in--methinks it also has been fuel soaked--or fucked with by someone.

So DEFINITELY neeeded--either rear of fuel tank propperly welded up OR a replacement tank
Another 1.0l of good oil and an oil filter
Probably needed a new carb Diapheram

Told y' so. Tough little buggers them little singles.

Araldite will fix that tank.

I'm thinking the diaphragm may be the reason it actually stopped. Whether the petrol contamination caused that or whether it was unrelated, who knows.

New diaphragm and a bit of Araldite and it'll be as good as new.

**Ixion** · 25th March 2008, 11:29

Originally Posted by FROSTY

Actually heres the funny thing. I use clearish 20l ci\ontainers to dump oil into for disposal.
Just had a look at the "fuel" I dumped in there last night.
I know it was at least 3.0l of oily looking petrol.
But now its down to 1.5l of definitely oily petrolish stuff.

Oil (and petrol) was probably micro aerated, cos of the sump being overfilled. Sort of frothed up like a milkshake. Overnight the air has come out (Wild guess mind you)

**FROSTY:Me** · 25th March 2008, 11:34

No mate I'm pretty sure that theres a number of causes.
3 plus literes of fuel in a 1.0l sump -Im pretty sure I heard the piston going "splosh" as it hit BDC. Airbox fulla gas. and yep diaphram is definitely an issue
Then again Colemans mechanics may be right -maybee it still has low compression
What causes a bike to idle pretty well normally---bettter with choke on
then die when you turn some throttle on??