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by Ivor Collins
Tue Nov 06, 2018 5:49 pm
Forum: Two stroke
Topic: My latest project
Replies: 58
Views: 10715

Re: My latest project

Hi Lawrie

You’re making good progress there.
I too have been waiting for Drags to make some lower chain cases but fear I may be too old to ride by the time they get them in! Are you making in steel and how difficult is it to do without a sample to copy?
Regards
Ivor
by Ivor Collins
Sun Oct 21, 2018 5:08 pm
Forum: Two stroke
Topic: Crank Locking Tool
Replies: 6
Views: 1353

Re: Crank Locking Tool

Hello David

In the absence of any other replies so far, I have one and would be happy to lend it out but it’s one I machined up and made quite a bit beefier than the norm so postage would be a problem. Where are you from?
Regards
Ivor
by Ivor Collins
Fri Sep 21, 2018 11:21 am
Forum: Two stroke
Topic: POWDERCOATING Arrow rear shocks???
Replies: 4
Views: 737

Re: POWDERCOATING Arrow rear shocks???

My only experience of messing with shockers was from my Hillman Imp days when I wanted to produce my own stiffer dampers. I simply drilled and drained the old oil out before tapping for a plug which had to be sealed into place. I refilled with a variety of viscosities until I found the one that suit...
by Ivor Collins
Fri Aug 31, 2018 10:28 am
Forum: Two stroke
Topic: Age related registration no
Replies: 10
Views: 1458

Re: Age related registration no

Slightly off topic but I sent of my v112 form to dvla for mot exemption some time ago, never heard back from them so have just checked the status on line which shows it is taxed (free) but for MOT it reads No Results Returned. What the hell does that mean? Surely it should read Exempt or Expired or ...
by Ivor Collins
Sat Apr 07, 2018 10:22 am
Forum: Two stroke
Topic: UNEVEN SMOKE TRAILS
Replies: 10
Views: 1527

Re: UNEVEN SMOKE TRAILS

Hi Keith Thank you for your reply. I get the idea that small variations in volumetric efficiency and thermal mass affects temperature rise but I was intrigued by the suggestion from Eero that "rotation" was a contributing factor. It also begs the question that, having established the 'disa...
by Ivor Collins
Fri Apr 06, 2018 9:18 am
Forum: Two stroke
Topic: UNEVEN SMOKE TRAILS
Replies: 10
Views: 1527

Re: UNEVEN SMOKE TRAILS

Hi Eero You are right, the left does run hotter when checked with a lazer thermometer, both on the plug and around the cylinder head when the engine is stood.However, the (external) temperature difference dissapears when riding and only increases again when parked. I still don't really understand wh...
by Ivor Collins
Mon Mar 19, 2018 5:27 pm
Forum: Two stroke
Topic: Crankshank Allen Keys stuck
Replies: 7
Views: 859

Re: Crankshank Allen Keys stuck

Using WD 40 won't help release a seized fixing, through their marketing, many people now believe it to be a panacea for all things but it's actually just a "Water Displacement" fluid. Wash out the WD 40 with acetone or something similar and replace it with a good quality, purpose made rele...
by Ivor Collins
Sun Mar 11, 2018 8:09 am
Forum: Two stroke
Topic: Rattle sound from r/h side of engine
Replies: 40
Views: 4140

Re: Rattle sound from r/h side of engine

Hi Jess Interesting. So with better porting and highest degree of tuning you needed a smaller main jet! I'm sure you also felt that was wrong when the whole point of improved porting we to shift more fuel/air to extract more power. So does this mean that the bike with the larger main jet is the more...
by Ivor Collins
Sun Feb 25, 2018 2:03 pm
Forum: Two stroke
Topic: Exhaust modifications
Replies: 3
Views: 763

Re: Exhaust modifications

Hi Alan

Is this possibly the one you have seen before?
by Ivor Collins
Tue Feb 13, 2018 6:10 pm
Forum: Two stroke
Topic: close ratio gears
Replies: 21
Views: 2124

Re: close ratio gears

Hi Brian

I have seen pictures of your suspension conversion before, looks like a well engineered result and I assume it performs well so what would is the improvement you hinted at?

Regards
Ivor

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