Secondry Air Injection System.

Maybe it was me. I stuck a steel ball into the hose blocking it. Low rev jerking gone, popping gone. No issue. That was 30.000 kms ago...

 

Non ! Just the Light will come on , SAI is all about environmental protection ! It removes unburned fuel from the exhaust. Exhaust is waste / burnt gases exiting the engine. The only reasons for exhaust pipe's is the longevity of the valves and engines perform better with the exhaust gases exiting in an orderly and controlled fashion, they give engine designers control of performance , fuel economy or pure power is strongly affected by valve timing and exhaust port/pipe design.!!

 

while removing the air injection on a 2001 bonneville i noticed the treads are wrecked on the hole in the head beside the spark plug can i just block the hole with some liquid metal or is there back pressure there

 

Quick question to those in the know, would he be able to try and screw some blanking plugs in there anyway as the threads are f'ked anyway, being careful that nothing cracks of course

 

I once did this on a Kawasaki GT750
Helicoiled a spark plug hole without taking the head off
Thought I’d got away with it and everything seemed fine
Went for a ride and a bit of swarf got jammed on the inlet valve seat
It back fired through the carb and set fire to the air filter
Only just managed to stop and get the seat off and had rip it to bits to get it out
Nearly lost the bike
Also if that plug wasn’t held in properly it could come out at full chat like a Feckin bullet and puncture the tank
That could be interesting

 

You can helicoil it quite safely ,IF you ensure the cylinder on the side you are doing is @ top dead center ! This is to ensure swarf (as mentioned by @dilligaf doesn't get into cylinders) those holes are behind/outside the exhaust valves , they are in the exhaust port/exit ! Just use high pressure air to blow ports clean before you try starting it up ! I know this as I've had my motor apart to do top end modifications !

 

Gee I'm glad I have those AWFUL carburetors on mine ...J.D.

 

Now you just need to do the airbox mod put in a k&n and a remap

 

Its really easy to do with a windows laptop and a Lonelec cable but if your happy with the way the bike is standard map and light mods then no real need to remap it,I only did mine as changed the end cans it was not even running that bad the previous bonneville owned had the whole hog done TTP stage one map pipes airbox mods 02 sensors SAI ect recon it gave the bike another 20 BHP

 

Well thats where it all started with my Bonny the Hyde peashooters made it pop and bang on the overrun so junking the SAI system eliminated that issue same as my current Thruxton the remap i used on this bike is the OEM triumph factory TORS map and it runs fine so all personal preference you can do so much to these machines its yours to decide how to make it your own

 

Put a few pics of your iron horse up here Malcolm for us to see

 

Ooh thats pretty love the colour and the seat/rack combo are those engine casings chrome coated type or highly polished as i cant get mine nowhere like it but they are brush alloy