Sunday 16 November 2014

A few odds and sods


First up, since my post on regarding the air filter and concern about it getting splashed and clogged with muddy water, hence my fix with the old airbox. As if by magic the same filters have now appeared for sale with the plastic shielding around them:



It won't be a concern for me but you may wish to get one out these instead maybe? Up to you.

The cdi situation.

Well first up, that's another DC Cassoli unit marked as for cg 125 / fmi156 that DOESN'T work on the bike.


So it looks as though I got told duff info and the bike runs on an AC system after all! An AC CDI unit is on route.

Just to rub it in I found a site called 'Taipei Scooter Assassins' (Google), which also stock tuning parts for motorcycles do stock a cdi unit that definitely works with the bike (under the Kaisar & Skyjet variants), so either way I'll find one that works but hopefully the one on route should be fine.

They also stock the different carb main jets sizes, which I touched on earlier, so will be worth delving there for those later on. Although as an engineer (engineer not a mechanic, there's a difference) I know full well I could just drill out the hole in the existing jet to the same effect but, it's good to know you have one to revert to that works should a bigger size send things awry.

If you can't get hold of different size jets though, you can just by another spare part original size jet and drill it out!

They claim on the site that they took an slower ohv engine version of the bike (from it's model no) from 68 mph to around 82 mph by changing jets, air filter, and cdi unit. Sounds kind of promising and there's no mention of adding a new exhaust system or even bigger carb itself.

The carb itself 'Shengway' a clone of a Mikuni style carb seemed to have only 1 screw for adjustment a combination air / fuel mix I would assume. This was adjusted to get it running / ticking over better at around two & half thousand revs. After this there is no bogging down when suddenly twisting the throttle right back. It's all a ok.

Since a new Shengway carb itself is cheap for the bike, even cheaper off a breaker on Ebay, if you were thinking about changing the jets I would buy an complete new carb and change the jets on that one. Then, that way you have a complete system you know that works previously just to bolt back on, if you cock it up. If you were thinking of changing the carb out for a bigger one or an actual Mikuni etc then that would be the time.

On another note, I noticed a gearing sprockets / chain upgrade kit for the bikes on another website that not only improves top end but fuel economy as well. That will obviously impact acceleration in a trade off for top end as that's just how things work when it comes to gearing. The 1st gear really is just to get things moving as it is, if it can add more to that it would be good but, it's how it is across the range that counts.

Will it effect the 'just around town / city' nippy performance too much or not affect it really that much at all? It could be that our other tuning might mean it helps there meaning it's not a problem, If it's minimal then it would be worth it just to have a tank of petrol last longer and to have more overtaking speed available in lew around 55 mph. You know your not going to have to worry getting into trouble trying to overtake something at that speed as there's plenty left.

Then again, if other tuning takes it well past that 70 mph legal barrier we have (80 to 90mph) already then do we need to bother? Something to leave till later on.

The exhaust on this is still fairly new, so I want to get the money's worth out of it before swapping it out. Though swapping it out for a performance system that's stainless steel is at some point a no brainer, if just for the fact it won't rust away & need to be replaced is the main reason. Just how much extra performance from one though is questionable?





Another little tit bit is the rear shock, it's ok but does have a low ride height, which I suppose is great for the 17 - 18 yr olds and is still ok with people like me on it but, it can be swapped out for an original Honda CBR rear shock. This apparently gives it a higher ride height. Some say a better handling, again not quite sure about that at the moment? Worth picking one up in good condition from an eBay breaker for pence. I'll have it fitted when the rear tire needs changing, since the guy will have the rear wheel off anyway, seems logical no matter how easy a swap. I can manage with the one that's on for now.

A problem with bikes is that you can tend to get a bit of a rash where you put your legs down the sides (sounds bad doesn't it!). On the bike of course! Scratches from metal lace loops etc brushing down the panels.
I decided to smarten these 2 small panels and add to the black and gold balance by wrapping them either side.
Bear in mind this is one big panel all the way to the back so I had to use a knife to part it off carefully so it looks like two separate pieces:






Both side panels (Larry & Lenny) were finshed ready to be added back on:










No comments:

Post a Comment