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linuxyeti |
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linuxyeti World Chat Champion
Joined: 06 Oct 2006 Karma :
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Moxey |
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Moxey World Chat Champion
Joined: 11 May 2011 Karma :
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Posted: 22:51 - 23 Jan 2019 Post subject: |
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Last Friday really.
Acquired a spare set of barrels for the 750 that were a little damaged hence I got them a fair bit cheaper and came with the 65mm pistons to take it up to 836 if I so wish.
Got a bit more £ back after they were apparently damaged in transit which wasn't really of any concern as I planned on fitting ductile steel liners anyway.
The damage.
https://i.imgur.com/eJHb4yB.jpg
Chucked them in the works oven at 85 degrees for about 20 minutes then proceeded to tap them out nice and easy.
https://i.imgur.com/7J2GDB6.jpg
3 of the fins on one side were also damaged so welded them back on (bottom left).
https://i.imgur.com/iz8bb9t.jpg
https://i.imgur.com/MSDjFqP.jpg
Little bit of filing and they should look as new, provided my contact in Middlesbrough gets in touch I should be able to get some NOS 836 rings so should only cost the new sleeves + machining of and soda blasting and I have an 836 kit for a quarter of the price. ____________________ Current: 02 FZS 1000 Some Bike Pics...
'I was too busy paying attention to pay attention' |
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redeem ouzzer |
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redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
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Posted: 09:46 - 27 Jan 2019 Post subject: |
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My YR5 is still being a bitch with this random ignition fault, it runs fine at idle and below 4K but then cuts out from time to time above that, it’s a bit concerning as the rev counter dies when it happens so I’m hoping it’s not a CDI fault. Anyway managed to run it for long enough to get a few runs with the new pipes, which has increased my annoyance as the difference is like night and day between the Jim Lomas pipes and the custom built replacements. Red is old pipes, for reference.
https://farm8.staticflickr.com/7922/46890984801_920aa618a1_z.jpg
[url=tools.sportscard.trade]Generated from my Apple iPhone using tools.sportscard.trade[/url]
No hole at 5.5k, vast increase in torque, everything happening at a lower RPM. Where you see the torque start increasing rapidly, the thing was twisting and squirming on the dyno . Fuelling was pretty good, once we cure the issue with it shutting down at random there are likely improvements to be had with the ignition curve as it’s still structured to tail off at a higher peak RPM in line with the old pipes. Have to say I’m surprised how low the new pipes peak but that bodes well for piston and crank life. ____________________ Be a REAL MAN! |
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Sister Sledge |
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Sister Sledge World Chat Champion
Joined: 17 Aug 2018 Karma :
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redeem ouzzer |
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redeem ouzzer World Chat Champion
Joined: 06 Oct 2015 Karma :
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stevo as b4 |
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stevo as b4 World Chat Champion
Joined: 17 Jul 2003 Karma :
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redeem ouzzer |
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redeem ouzzer World Chat Champion
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Pete. |
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Pete. Super Spammer
Joined: 22 Aug 2006 Karma :
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Posted: 13:56 - 27 Jan 2019 Post subject: |
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Fitted repaired ignition barrel, TFR and jetwash, quick once-over and sorted out a weird problem that makes the right indicators flash at random rates. ____________________ a.k.a 'Geri'
132.9mph off and walked away. Gear is good, gear is good, gear is very very good |
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Sister Sledge |
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Sister Sledge World Chat Champion
Joined: 17 Aug 2018 Karma :
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Posted: 14:39 - 27 Jan 2019 Post subject: |
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Was dreading this.. but it needs doing!
Started putting new (Pirelli) tyres onto it. A slight problem though was last time I took it out they'd gritted onto the hill tops and I realised too late. Combine that with bare polished metal everywhere including rims and it's gonna be an annoying job to sort out!
Front wheel off, old tyre off, clean and prep metal and then start polishing.
https://farm8.staticflickr.com/7829/46168323064_b3ac72508c_b.jpgRebuild time by Craig David, on Flickr ____________________ CCM 404 DS |
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Fizzer Thou |
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Fizzer Thou World Chat Champion
Joined: 06 Aug 2011 Karma :
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Posted: 16:11 - 27 Jan 2019 Post subject: |
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Moxey wrote: | Last Friday really.
Acquired a spare set of barrels for the 750 that were a little damaged hence I got them a fair bit cheaper and came with the 65mm pistons to take it up to 836 if I so wish.
Got a bit more £ back after they were apparently damaged in transit which wasn't really of any concern as I planned on fitting ductile steel liners anyway.
The damage.
https://i.imgur.com/eJHb4yB.jpg
Chucked them in the works oven at 85 degrees for about 20 minutes then proceeded to tap them out nice and easy.
https://i.imgur.com/7J2GDB6.jpg
3 of the fins on one side were also damaged so welded them back on (bottom left).
https://i.imgur.com/iz8bb9t.jpg
https://i.imgur.com/MSDjFqP.jpg
Little bit of filing and they should look as new, provided my contact in Middlesbrough gets in touch I should be able to get some NOS 836 rings so should only cost the new sleeves + machining of and soda blasting and I have an 836 kit for a quarter of the price. |
Interesting read about the work on the barrels.I bought a set of Yoshi 836cc pistons from Dixon Racing back in the early '80s for my CB750F2 Special.As such I have some spare piston rings and some other bits and pieces in amongst a stack of other bike pieces
Have you had a read of my Honda 750 story?
https://www.bikechatforums.com/viewtopic.php?t=234539&postdays=0&postorder=asc&start=0 ____________________ Just talk bikes.What else is there?
Always have a 'Plan B' |
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redeem ouzzer |
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redeem ouzzer World Chat Champion
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DrSnoosnoo |
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DrSnoosnoo World Chat Champion
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Moxey |
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Moxey World Chat Champion
Joined: 11 May 2011 Karma :
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Posted: 11:13 - 28 Jan 2019 Post subject: |
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Indeed I have read the story of your 750 it was one of the primary motivators for buying one .
I'll drop you a PM about those rings .
I have debated going up to 900cc using donor pistons from another machine but I don't want to out-perform the cranks capabilities (or the braking and handling for that matter). ____________________ Current: 02 FZS 1000 Some Bike Pics...
'I was too busy paying attention to pay attention' |
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Sister Sledge |
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Sister Sledge World Chat Champion
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stonesie |
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stonesie World Chat Champion
Joined: 04 Jul 2010 Karma :
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Sister Sledge |
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Sister Sledge World Chat Champion
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ThatDippyTwat |
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ThatDippyTwat World Chat Champion
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
Joined: 16 Aug 2013 Karma :
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ThatDippyTwat |
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ThatDippyTwat World Chat Champion
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kramdra |
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kramdra World Chat Champion
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Courier265 |
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Courier265 World Chat Champion
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Nobby the Bastard |
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Nobby the Bastard Harley Gaydar
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kramdra |
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kramdra World Chat Champion
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mrr1 |
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mrr1 Traffic Copper
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Wull |
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Wull Crazy Courier
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Old Thread Alert!
The last post was made 5 years, 79 days ago. Instead of replying here, would creating a new thread be more useful? |
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