Talk to me about boost plugs!

[Sadlonelygit]

Found one on the crf of doom! Sits in line from the maf sensor in the airport, so guessing it just fiddles the signal to the ecu.
Thing is, there's a fair bit of oil in the airbox, both drain hoses were full. Connected or just usual modern emissions malarkey.
Your thoughts as always are appreciated

[Ditchfinder]

From what I understand all they do is alter the air intake temp to try and make the ECU pump more fuel to richen mixture at closed throttle. Shouldn't affect oil in anyway.

[dern]

I had one on a gs1150. It modified a temp sensor's input to make the standard map run less lean and therefore more smooth. It worked for about a week or so and then the map adjusted and it was the same jerky shitebox as before. Shouldn't have any effect on oil in the airbox.

[Mr Moofo]

I had one on a gs1150. It modified a temp sensor's input to make the standard map run less lean and therefore more smooth. It worked for about a week or so and then the map adjusted and it was the same jerky shitebox as before. Shouldn't have any effect on oil in the airbox.

Interesting - I run one on my Scrambler because the 1200 runs very lean. When I first put it on, I swear it made a difference. However I am pretty convinced that now it doesn't!

[Rockburner]

I had one on a gs1150. It modified a temp sensor's input to make the standard map run less lean and therefore more smooth. It worked for about a week or so and then the map adjusted and it was the same jerky shitebox as before. Shouldn't have any effect on oil in the airbox.

The BMW Motronic is a closed loop system, so anything that just tinkers with a single sensor tends to get ignored fairly quickly.

Best solution for them is a complete new map.

[Supermofo]

Oil in the airbox sounds more like overfilled oil, no? Or something like that. I seem to recall wheelies used to dump oil in the air box of LC4 KTMs as well.

[Rockburner]

Oil in the airbox sounds more like overfilled oil, no? Or something like that. I seem to recall wheelies used to dump oil in the air box of LC4 KTMs as well.

Yep - airbox is usually where the engine breather exits.

[Buckaroo]

Like @dern said. I put one on my F800R. Worked for a while and then back to the usual stutter.

[Mr. Dazzle]

If your bike has the big dustbin cat (no idea if the OP does) then it'll be closed loop fueling, so anything wedged in to try and "fool" the ECU will be ignored/adjusted out pretty quick - withina couple of miles quick. Or it'll just make the check engine light come on.

[Taipan]

I got one for my F800R only to find it already had one! D'oh! I unplugged it for a few hundred miles and plugged it back in and it was better, but I knew it was going to revert0 to its base settings again, so I had the ECU remapped and it was probably the best fuelling bike i've ever owned.
I put one on my KTM 690 Duke and it helped, but didnt solve the jerkiness.

[Scootabout]

When I first got the V85TT it used to pink, quite badly, when hot. I looked into various solutions, including booster plugs. In the end I didn't need any, as there was an official ECU remap due, which the dealer did. This solved the problem.
Others have used third party mapping solutions. The names Upmap and Beetle Maps spring to mind.

[Ditchfinder]

Beetle maps are very well known in the Guzzi fraternity

[roadster]

There could be some connection between over-fuelling and oil in the airbox if the oil smells of fuel and the level seems to be high but then falls after a long run. Namely that unburnt fuel washes off the oil on piston scrapper rings and blow-by carries fuel into the crankcase. Oil will smell of petrol and there will be excessive crankcase pressure blowing out through the breather when disconnected.

[Dickyboy]

Beetle maps are very well known in the Guzzi fraternity

Still found a proper remap at Dave Wood Racing far better for my 1200 sport, considerably more expensive than a beetle map grant you, but +5bhp in the midrange & a lot smoother.