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Messages - JonnyB

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121
CB500/550 / Re: piston ring compressor
« on: March 23, 2009, 01:48:34 PM »
I've never used one, the lip at the base of the barrels (on 750 anyway) is large enough to push the rings in as you slide the barrels over the pistons. I've always used loads and loads of clean engine oil during reassembly, and with the outer pistons raise slid the barrels downwards. You may need to pinch the rings as you go, but this can be done by hand

122
CB750 / Re: Take its head off??
« on: March 23, 2009, 06:43:26 AM »
It's an easy enough Job, and retiming up is simple too, make sure you get a gasket set and be careful prizing them apart don't be tempted use screw drivers and hammers, oh and locate the 4 hidden screws in the wells between the spark splug holes, if they don't slacken you'll have problems

123
Misc / Open / Re: PDF Editor needed for CB500 Parts Book
« on: March 18, 2009, 10:35:18 AM »
That's the problem with PDF's technically they are not editable, they are just the output, a bit like electronic paper. I can progmatically exctract and insert pages into an existing pages to create a new document.

See how you go.

124
New Member Introductions / Re: new member
« on: March 17, 2009, 06:53:58 AM »
Welcome Andrew, you'll find plenty of folks here who have done the same, me included

John

125
Other Bikes / Re: Cool Runnings or Slow running Issues
« on: March 16, 2009, 08:49:03 PM »
This is the DOHC nighthawk, oil/air cooled, but yes my bro' has the gpz600 with the de-icing mod, bascially a pipe from the water system thu the carbs

126
Other Bikes / Re: Cool Runnings or Slow running Issues
« on: March 16, 2009, 01:41:06 PM »
Took the carbs off and cleaned the Choke mechanism, chargedf the battery and went for a spin yesterday, drives like a dream, but still worried about the poor running on a cold day, any one had similar experences?

127
Other Bikes / Re: Cool Runnings or Slow running Issues
« on: March 08, 2009, 08:56:18 AM »
I don't remeber ever seeing it before, so I assume it must have had a blank or somthing over it, could this be causing my running rich problems?

128
Other Bikes / Re: Cool Runnings or Slow running Issues
« on: March 07, 2009, 03:34:11 PM »
Any Idea what this hole is for??????


129
CB750 / Re: 1980 CB750c starting problem
« on: March 06, 2009, 12:11:37 PM »
The F1 and F2 have Neutral interlock switch it behind the clutch lever on the handlebars, so you can start in gear with the clutch in. Ff the lights dim I would say that all the Juice is being used by the starter relay and starter motor, make sure the battery is fully charged

130
Other Bikes / Cool Runnings or Slow running Issues
« on: March 05, 2009, 04:41:35 PM »
No, Not the film about a Jamacian bobsleigh team,

The CB650 has been running great while the weather has been nice, tried to go to work the morning (-1 'king cold) everything was fine until I hit traffic and had to slow down, very ropy running wouldn't idle, It was doing this earlier in the year but only on REALLY cold days - plugs really foul up as if choke is open


131
CB650 / Re: CB650sc Nighthawk. Oil Cooler.
« on: March 02, 2009, 09:32:05 AM »
I can confirm that the DOHC model has an oil cooler. If (and it's a big IF) it does fit you may need the Filter bolt too, because it fits as a flange between the engin and the filter cover.

132
Other Bikes / Re: Carb problems
« on: March 02, 2009, 09:27:20 AM »
 ::) Typical  ??? I have managed to get it running better, I can now put the choke in without it dying but idle running is still a bitch. I have an ultrasonic cleaner - What fluid did you use to use?

133
CB750 / Re: OIL FOR CB750
« on: March 02, 2009, 09:23:53 AM »
I use the Halfords 10w40 in the green bottle

134
Other Bikes / Carb problems
« on: February 28, 2009, 06:48:05 PM »
Have cleaned the carbs on the gs450, but i can't keep the dam thing running. It will start on choke and run, but when i put the choke in it starts to back fire the dies.

any ideas

135
Where's My Old Bike? / Re: Where's my old Bike.
« on: February 27, 2009, 03:29:53 PM »
They certainty were robust little buggers, When mine dropped it's valve we went round a dozen scrappers looking for heads and every one had the same left had valve burnt out or dropped.

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