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by G-Man
Thu Jan 30, 2020 2:47 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: CB77 Crankshaft repair
Replies: 10
Views: 10699

Re: CB77 Crankshaft repair

Michael Thankyou! These old parts do not deserve to be thrown out . Hopefully I have come up on an economic means of repairing them. Hopefully, I'll have a bike ready to test an engine in the next few months. I'll certainly report back. With help from Ken Garfield on the Honda 305 Facebook page I ha...
by G-Man
Tue Jan 28, 2020 3:35 pm
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: Tilting the engine
Replies: 4
Views: 3052

Re: Tilting the engine

Try doing that with a CL77........ :-)

G
by G-Man
Tue Jan 28, 2020 1:01 pm
Forum: Carburation - Fuel
Topic: carb o-ring no 16173-250-004
Replies: 1
Views: 1978

Re: carb o-ring no 16173-250-004

Just measure the one you have and buy a replacement from a generic bearing / seal supplier.

This is where I get mine.

https://simplybearings.co.uk/shop/Produ ... index.html

G
by G-Man
Mon Jan 27, 2020 2:39 pm
Forum: Transmission
Topic: CB72/77 Kickstart gear
Replies: 3
Views: 5366

CB72/77 Kickstart gear

I've built up quite a collection of damaged kickstart gears, none of which are easily repairable on their own. The first two I looked at had complementary faults. One had a damaged gear and one had a damaged spline. This one had a broken gear tooth. https://live.staticflickr.com/65535/49451260196_e7...
by G-Man
Fri Jan 24, 2020 11:27 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: CB77 Crankshaft repair
Replies: 10
Views: 10699

Re: CB77 Crankshaft repair

Al

Well I think I've just found out......

Today has been spent trying to fix the digital scale on my mill. Very annoying. I've had to resort to my credit card after several frustrating hours. :-(

G
by G-Man
Fri Jan 24, 2020 4:10 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: CB77 Crankshaft repair
Replies: 10
Views: 10699

Re: CB77 Crankshaft repair

The rods both got treated to some bronze bushes for the small ends. https://live.staticflickr.com/65535/49432885283_2b82d77e50_c.jpg And, with the centre-section assembled it was time to assemble the big ends. My sleeves are a close sliding fit and are held in place by Loctite 620 which is an amazin...
by G-Man
Fri Jan 24, 2020 3:59 am
Forum: Motors - 247cc | 305cc | 337cc | 350cc
Topic: CB77 Crankshaft repair
Replies: 10
Views: 10699

Re: CB77 Crankshaft repair

To get oil to my new bearing, the sleeve needed holes to transfer oil from teh big end pin out to the bearing. This is incredibly hard material and I went through a few optione before I could make the holes. The chosen method was to start the 'hole' with a dremel grinding bit and then drill with an ...




 

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