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by pauldridge
Sun Jul 23, 2017 7:22 pm
Forum: Four stroke
Topic: HANDLEBARS
Replies: 7
Views: 2161

Re: HANDLEBARS

Ralph.. I ordered a new bar for my mk ii a year ago from Dragan, but when it came I didn't like the shape respective to the one that is on my bike I decided to just keep my original which is actually in very decent shape The one from Dragon is supposedly correct for the mark ii. The shipping cost ba...
by pauldridge
Tue Apr 18, 2017 1:03 pm
Forum: Four stroke
Topic: SQ 4 MK II front hub assembly
Replies: 22
Views: 4621

Re: SQ 4 MK II front hub assembly

David, Thanks for your astute observation, and for setting me straight. I do need to learn to document my disassembly/assembly of components more thoroughly for my own future reference and for others, as I seem to forget these things in a very short period of time. I think you have certainly caught ...
by pauldridge
Sun Apr 16, 2017 2:49 am
Forum: Four stroke
Topic: Sq 4 MK II Assembling cylinder block to crankcase
Replies: 1
Views: 611

Sq 4 MK II Assembling cylinder block to crankcase

I will be assembling my engine soon, after its disastrous thrown rod back in September. Although the manual suggests assembling the rods and pistons together in the crankcase, THEN lowering the cylinder block onto all 4, at least one knowledgeable person says the way he does it is to insert all 4 pi...
by pauldridge
Sat Apr 15, 2017 6:00 pm
Forum: Four stroke
Topic: SQ 4 MK II front hub assembly
Replies: 22
Views: 4621

Re: SQ 4 MK II front hub assembly

Simon, There is not a whole lot to it. You will need the tool to remove the bearing locking rings Draganfly PN 61-3694 (or fabricate something that will work). Inexplicably, the tool comes without necessary roll pins, but I was able to easily source a correct size at an autoparts store. Once the bea...
by pauldridge
Sat Apr 15, 2017 5:05 pm
Forum: Four stroke
Topic: SQ 4 MK II front hub assembly
Replies: 22
Views: 4621

Re: SQ 4 MK II front hub assembly

Vincent, Thanks for your thoughts, but it turns out that spacer washer cannot be used with the newer, wider bearings D/F provides. The new bearing width is exactly the same as the width of the old bearing and the spacer washer combined. I finally got it all back together properly WITHOUT the spacer ...
by pauldridge
Sat Mar 11, 2017 11:10 pm
Forum: Four stroke
Topic: SQ 4 MK II front hub assembly
Replies: 22
Views: 4621

SQ 4 MK II front hub assembly

I just replaced my open front wheel bearings with sealed units from Draganfly. The new right hand bearing is sold with same dimensions as the left hand, but includes a reducer bushing and flange to bring the bearing back to correct dimensions as the original. The new bearing is narrower in width, bu...
by pauldridge
Fri Mar 10, 2017 8:57 pm
Forum: Four stroke
Topic: SQ four MK II crankshaft bearings
Replies: 1
Views: 620

SQ four MK II crankshaft bearings

Wonder if anyone has a "modern" supplier/designation for the drive side crankshaft roller bearings? We are at the near final step of putting my engine back together, but need to replace the bearings, hate to wait the typical 30 days transit time through customs here in Trump's USA, hoping ...
by pauldridge
Thu Jan 26, 2017 12:19 am
Forum: Four stroke
Topic: SQ4 MK II Need to source timing side crank bushing
Replies: 6
Views: 1513

Re: SQ4 MK II Need to source timing side crank bushing

Thanks! That seems to be the unanimous conclusion. I'll stick with the standard!
by pauldridge
Wed Jan 25, 2017 2:05 am
Forum: Four stroke
Topic: SQ4 MK II Need to source timing side crank bushing
Replies: 6
Views: 1513

SQ4 MK II Need to source timing side crank bushing

My machinist has almost recovered after my engine meltdown (thrown rod, 1953 MK II). Most all repairs and parts have been completed.. new roller bearings, pistons, rods, bearings, valves, guides, springs, etc. The last obstacle is replacing the timing side crank bushings, as he finds the clearance t...
by pauldridge
Fri Jan 20, 2017 9:50 pm
Forum: Four stroke
Topic: need air cleaner rubber hose for Solex
Replies: 5
Views: 1053

Re: need air cleaner rubber hose for Solex

Thanks for your wisdom Paul,
I guess this is hardly the worst of my concerns with this bike!

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