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105313 Posts in 12007 Topics by 1177 Members - Latest Member: fen tractor November 13, 2019, 02:23:25 AM
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XS1100UK Forum  |  Bullshit Corner  |  In The Garage  |  Topic: Green Thing
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Author Topic: Green Thing  (Read 2232 times)

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annie

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Re: Green Thing
« Reply #90 on: September 05, 2019, 10:32:38 PM »
This bracket has a 3 point fixing and can only  mount one way.
The rad is 200mm lug to lug and bracket 180mmlug to lug
79 XS, Bitsa
Green thingy

Tom

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Re: Green Thing
« Reply #91 on: September 05, 2019, 10:37:15 PM »
The lugs do bend considerably
It makes you look a tvvat but question everything!!


Tom, belligerent old tosser!!
Dazed and confused

annie

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Re: Green Thing
« Reply #92 on: September 07, 2019, 08:04:10 PM »
Quote
The lugs do bend considerably

Way to go,ta.
Done 60 miles now,between 60 and 100 psi in the bores.How many miles to run it in?
Still goes like stink.
79 XS, Bitsa
Green thingy

FJ111200

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Re: Green Thing
« Reply #93 on: September 08, 2019, 12:46:18 PM »
How many miles to run it in?

I'd go for 500 and then change the oil and filter. Don't be gentle with it though, give it some.
Tight end down

https://www.youtube.com/watch?time_continue=12&v=TeyHPAdxuy0

Interesting thought... But don't you need 'members' for a 'Club'..?

If you can't bleed your bike's brakes then you can't have a bike.

XS1100 - it's old fookin' hat.

Tom

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Re: Green Thing
« Reply #94 on: September 09, 2019, 07:24:30 AM »
Wow 60 to 100 is low, sure you're testing it right, I'm surprised it runs at 60 psi compression. After 60 miles the bores/rings should be run in, we don't run the race engines in at all, straight out on the track at 10,000rpm and making good compression. Have you tried a leak down test?
It makes you look a tvvat but question everything!!


Tom, belligerent old tosser!!
Dazed and confused

annie

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Re: Green Thing
« Reply #95 on: September 10, 2019, 11:30:42 AM »
Yes,um.Done a whole 90 miles now.
Did a cold compression test last night.125,95,75,70.
Leak down tester on its way,but me thinks valves need adjusting.
Dosn't  it need more bedding in?
79 XS, Bitsa
Green thingy

Tom

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Re: Green Thing
« Reply #96 on: September 10, 2019, 09:16:19 PM »
After 90 miles the rings will be well run in, at 9 miles the rings would have been well run in. Think about how many minutes riding 9 miles is and at what revs, 40mph at roughly 4000rpm? for 15 minutes? is 60,000 revolutions, which is 120,000 strokes of the bores that the piston rings do of the bore.

Nope it doesn't need more bedding in, the fact you have one reading of 125 psi confirms this.

Yes definitely try checking the valve shims.
It makes you look a tvvat but question everything!!


Tom, belligerent old tosser!!
Dazed and confused

annie

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Re: Green Thing
« Reply #97 on: September 21, 2019, 05:13:00 PM »
Checked all the shims,altered 2 by a tad.
The leak down tester is sending me up the  wall.I try TDC and a fraction before,but it just spins.Are you supposed to lock engine?how?
Still goes like stink with 2 up,and 70 psi  on no 4
79 XS, Bitsa
Green thingy

bradster

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Re: Green Thing
« Reply #98 on: September 22, 2019, 11:44:21 AM »
hi ,I have been following your build and it looks good  :clap:   I did a new piston top end rebuild at the beginning of the year ,when  I first did a compression check I was a bit alarmed at the difference on one cylinder .  I removed  the plugs and took a oil can and put a small drop in the bore (the one that read low ) and it raised the compression straight away ...in my opinion that sort of rules out the valves as the oil was on the piston rather than the valve area ....I put everything back together and gave it a run of a few miles and checked compression again and all was within a few psi of each other ..  my point to this is the rings don't need too much bedding in .. 

very frustrating after all your hard work ,I would  check your compression with the oil test and it may point you in the right direction of your problem ....possibly check your gauge as well ??   

Tom

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Re: Green Thing
« Reply #99 on: September 23, 2019, 07:26:35 AM »

The leak down tester is sending me up the  wall.I try TDC and a fraction before,but it just spins.Are you supposed to lock engine?how?


It just spins??? what the air pressure turns the motor?
It makes you look a tvvat but question everything!!


Tom, belligerent old tosser!!
Dazed and confused

annie

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Re: Green Thing
« Reply #100 on: September 23, 2019, 09:45:53 AM »
Having to use about 100 psi to get dial at SET position..
Spin was the wrong word
From what I think is TDC  the pressure whacks it down to BDC
79 XS, Bitsa
Green thingy

Tom

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Re: Green Thing
« Reply #101 on: September 23, 2019, 10:17:05 AM »
Put it in gear
It makes you look a tvvat but question everything!!


Tom, belligerent old tosser!!
Dazed and confused

annie

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Re: Green Thing
« Reply #102 on: September 26, 2019, 05:26:42 PM »
20190926_165242 by jon clinton, on Flickr

That's better I think.

Tried putting it in gear with wheels chocked and Brake lever roped tight.Would lurch backwards or forwards.There is a sweetspot but I'm finding it very difficult to find.
So fek it.
Put in new clutch plates and springs this afters because I could get the clutch slipping if I cracked the throttle open.
79 XS, Bitsa
Green thingy

xsalan

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Re: Green Thing
« Reply #103 on: September 26, 2019, 07:56:34 PM »
I had to change clutch as well john when carb upgrade.

bradster

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Re: Green Thing
« Reply #104 on: September 26, 2019, 10:07:52 PM »
Yup an ol worn clutch cant hide when things are running sweet ...ditto..

How did you get along  with tge lack of compression ?

XS1100UK Forum  |  Bullshit Corner  |  In The Garage  |  Topic: Green Thing
 

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