I had a similar problem with some lawn equipment where the float
stuck and the gas leaked into the crankcase. The mechanic that fixed it for
me said that "watered down oil" [watered down with petrol, that is.] is very
dangerous in the crankcase and could explode and cause major damage. I would
definitely change the oil before trying to fire it up again!
In my case it was bad petrol and some dirt was blocking open the
float valve.
Good luck.
Ed J.

-----Original Message-----
From: TriumphTrophy@yahoogroups.com [mailto:TriumphTrophy@yahoogroups.com]
On Behalf Of Martin
Sent: Sunday, July 12, 2009 3:06 PM
To: TriumphTrophy@yahoogroups.com
Subject: [TriumphTrophy] Re: AARGH! my engine oil is full of petrol!

Kev,

If fuel is flowing constantly, it must be a faulty float valve in the
offending carb. I have never tried replacing such a part, so cannot comment
on the difficulty. If you have not left the fuel tap on the prime setting,
then that must be faulty also I'm afraid.

Personally, I'd get that solved and then try running the bike again.
Hopefully the 'watered' down oil won't have harmed much.

If it were me, I'd simply buy a set of second hand carbs from eBay and swap
those on.

Martin.
03 1200 in Grpahite, 37k miles
Bath, England