What Have You Being Doing With Your Non-triumph Today?

Changed the main jet on the 175 Yamaha and took it for a little run to do a plug chop.

 

I think you look safely rich enough there, are you running autolube or premix?

 

I’m running a 40:1 premix with Silkolene comp 2. I was at 32:1 but it was recommended that I reduce it.

 

Yes we run the kmx 125 on 40:1 likewise for that bit more protection without hopefully overdoing it.
My block paving is taking some hits from the odd spoodge dropping.

 

I delved into the ATAC set up on the NS400 this morning. The bike has been stood since October and whilst it was running OK last year, it was choking up around the 7500 rpm mark, which I was told, is when the ATAC set up comes into play and so it was first port of call for my investigations. The ATAC assembly is basically a butterfly valve in each exhaust, which is actuated by a solenoid at the aforementioned 7500 ish rpm. On removal of the ATAC inspection covers, one side butterfly was lagging behind the other and so there was excess play in the linkage. I should say at this point that Honda, in their wisdom, only fitted the ATAC valves to the front two cylinders, the rear cylinder doesn't have it. The two butterflies are connected by an articulated rod and it was the rod linkage that was the problem. Once I got it off it was a fairly straightforward fix and its now back in situ. The bike started up ok afterwards, but I won't be giving it a test ride in this miserable weather, but at least that's one less job come Spring. Time for a cuppa.

Sorry I should have said; ATAC stands for ~ Automatic Torque Amplification Chamber.

Good old 80's stuff, they loved all that Bullshit! Lol