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Recommission of a sleeping 750
Posted: Fri Jul 24, 2026 5:06 pm
by Bungditin
Hi
I’m guessing there is lots already posted about what I’m asking, but, I’m bringing my 750 home from storage and I’m expecting that it will have drained its oil into the crankcase.
How do I go about getting said oil out if that’s the situation?
Thanks in advance and any other useful tips welcome.
I’m planning to actually ride it to the SE Rally from up North if I’m successful.
Cheers
Re: Recommission of a sleeping 750
Posted: Fri Jul 24, 2026 9:17 pm
by Wolfie
You haven't said which Model H2, the later (B/C) ones have check valves under the front which you can remove to drain the bottom end.
If it's an early A/B, with the Plugs out you could try turning it over slowly on the Kickstart to see if it locks or turns freely, if it turns OK then you could pick up the pace a little, kick after kick, until you're happy she turns over without any impediment.
Or, if there is Oil down there, you can take the carbs off and put a small Pipe down to the bottom and suck any oil out a bit at a time.
But if the tank is dry or low on Oil, it is best to empty it completely and check the gauze filter in the outlet cap as it might well be blocked with crap that has settled out of the Oil while standing.
Re: Recommission of a sleeping 750
Posted: Fri Jul 24, 2026 9:30 pm
by Bungditin
Ok thanks
It’s a 1974 b, USA import of course.
So drain plugs underneath you say?
Re: Recommission of a sleeping 750
Posted: Sat Jul 25, 2026 9:53 am
by Wolfie
Three Turtle-ey shaped things under the front of the Engine behind the downpipes, take note which way round they came off.
Re: Recommission of a sleeping 750
Posted: Sat Jul 25, 2026 1:33 pm
by RacerRB159
Take the carbs off.
Put the piston at top dead centre on the first cylinder you want to check.
Get a plastic syringe with a length of pliable clear hose, feed it into the bottom of the cylinder and try to extract any oil that maybe there
Hope that helps
Rich
Re: Recommission of a sleeping 750
Posted: Thu Aug 06, 2026 7:22 pm
by Bungditin
Tomorrow it arrives, so it’s going to be cautiously looked at.
So I will keep you informed if you are interested.
Am trying, aiming to attend the SE Rally.
Re: Recommission of a sleeping 750
Posted: Thu Aug 06, 2026 8:56 pm
by Wolfie
Bungditin wrote: ↑Thu Aug 06, 2026 7:22 pm
So I will keep you informed if you are interested.
Erm.. Yes, we are!
Re: Recommission of a sleeping 750
Posted: Sat Aug 08, 2026 7:17 pm
by Bungditin
So I carefully kicked it over for a while, and didn’t feel any untoward resistance other than these 750s have a lot of compression!
So I went for a start, and it did eventually fire, straight away on all three.
So happy days!
Re: Recommission of a sleeping 750
Posted: Sat Aug 08, 2026 7:44 pm
by TallyB
Result.
Re: Recommission of a sleeping 750
Posted: Sun Aug 09, 2026 7:12 am
by GWB
Good News,
Re: Recommission of a sleeping 750
Posted: Sun Aug 09, 2026 11:38 am
by Wolfie
Yep, well done that man!
Re: Recommission of a sleeping 750
Posted: Sun Aug 09, 2026 11:48 am
by Olde Coney
Bungditin wrote: ↑Sat Aug 08, 2026 7:17 pm
So I carefully kicked it over for a while, and didn’t feel any untoward resistance other than these 750s have a lot of compression!
So I went for a start, and it did eventually fire, straight away on all three.
So happy days!
Great result...well done
Re: Recommission of a sleeping 750
Posted: Mon Aug 10, 2026 9:48 am
by Luke Sharp
Wolfie wrote: ↑Sat Jul 25, 2026 9:53 am
Three Turtle-ey shaped things under the front of the Engine behind the downpipes, take note which way round they came off.
“Turtle-ey”?
Re: Recommission of a sleeping 750
Posted: Mon Aug 10, 2026 11:04 pm
by Bungditin
So I’m fitting JL pipes to it now. Let’s see what happens then.
Re: Recommission of a sleeping 750
Posted: Sat Aug 15, 2026 9:41 pm
by Nigel S
Luke Sharp wrote: ↑Mon Aug 10, 2026 9:48 am
Wolfie wrote: ↑Sat Jul 25, 2026 9:53 am
Three Turtle-ey shaped things under the front of the Engine behind the downpipes, take note which way round they came off.
“Turtle-ey”?
Yes Ian. It's a technical term.
