I use the bike as a general commuter in Spain. Here at times it gets very hot and even though the bike runs fine, I do notice a slight drop in performance when its 30c+. Will the air tray help ?

I'm cautious because i've seen several posts explaining that it can take 2 hours to get it all back together again.

Also, can you use the air tray with standard air box/filters ?

Cheers

No, I don't think it will make a noticeable difference.

If you're seeing a drop in performance in hot weather you might need to rejet the carbs.

Would you not think that the shielding and the channelling of the air might not help cool the float bowls Cammo?

I reckon it helps...but hot over here is 20 deg right now..lol

The hot air will make the bike richer as the density is less so rejetting might help too

So what you are telling me is that it's probably worth the effort to open her up to rejet and at the same time fit the tray ? Can u still use the standard filters etc ?

Thanks, much appreciated....

CMSMJ1 wrote:Would you not think that the shielding and the channelling of the air might not help cool the float bowls Cammo?

I'm not totally convinced, so a no from me. Edit I need some 'data' to prove this, a logged thermocouple would tell what temp fluctuations there were at the float bowls in all conditions, a good upcoming project maybe?

Engine heat will conduct to the carbs regardless I reckon. The carb tray -might- help in slow riding conditions, but at speed there's already a lot of air travelling through that space, carb tray or not I reckon.

I guess every bit helps, but I think holding high hopes on a carb tray to sort running issues on a roadbike that is performing differently in different weather conditions is a bit much.

I would first look at whether the cooling system is adequate, and then jetting.

FWIW I jet my racebike up or down depending on weather conditions. e.g. In 15C temp I run 140 mains, in 35C I usually run 145's.

I really can't weigh in on the argument too much here, but I do run in hot (Australian) condiditons with a cut down HRC air tray with no apparent performance difference compared to a full HRC air tray. This effectively allows the heat from the cylinders to go straight up to the carbs (maybe?). But I don't think it makes a difference TBH. I went down this path to make carb removal/fitting easier, and it's worked a treat. I didn't like the idea at first, but it just works! So I'd have to say that the carb tray doesn't bring about a notable difference in temp. I'd say it's more down to the carb set-up.

Just one other bit of info...

When pushed hard the bike runs better on 98 octane petrol than on 95.