Posted on by Tim

Tiger Test Ride(s)

 The Tiger rode like it has never had any fueling problems after I hacked the idle control system last time. Idle control is a common problem on 955i Triumphs and I’ve spent years trying to get mine back into spec even as finding parts for them gets more difficult. Turns out the solution is to remove it.

Ride #2: 40 minutes locally

Second ride this week and the bike idles rock steady and is as smooth as it has ever been, and the backfiring that had been getting worse is completely gone. Today it started on the button, ran from cold with no issues and took me on a 40 minute ride without a hiccup.

We live in an overcrowded little town now thanks to Southern Ontario swelling in size post COVID, so I took the Tiger through a lot of stop-start traffic to see if I could get it to hiccup, but it wouldn’t! Makes me want to move more than ever though.


No problems on the back roads.


Pickup up from stops, no problem. Cornering roll on throttle? Smooth as butter. Idle never wavers and I’d forgotten how much fun to chuck around the Tiger is…


So if you’re having never ending headaches with your Triumph 955i idle control system, yank the damned thing! Modulating the idle through varying the vacuum between the intake manifold and the airbox (the servo moves up and down revealing the vacuum passages for the three throttle bodies) serves some purpose (perhaps emissions?), but at this point in the bike’s life at over 90k and 22 years in, removing the lot and connecting the intake vacuum lines together offers a viable fix for what may be one of the last of these bikes on the road in Canada. I’d be willing to play Top Trumps with any other 955is on mileage too.

Ride #3: Going Long

The next run was a 275 km run up to Georgian Bay to look at a blue horizon. These days it’s also a reason to get out of our increasingly overcrowded and traffic jammy town.

The first 45 minutes are straight lining through farm desert, but the geography starts to get some character once you get into the Niagara Escarpment in the Gray Highlands. I didn’t throw the 360 camera on until we got to the less tedious bits.

At just under half a tank the Tiger took me 140 kms and two stops to a fuel stop between Blue Mountain and the big water. It was still showing most of the red on the fuel gauge and took less than 17 litres (it’s a 24 litre tank), suggesting that this mod isn’t hurting mileage.

After the fill up it was some twisty bits over to Creemore for a bite and then the long haul back through farm desert (with its big, juicy flies) and then lines of traffic to get back to my driveway. Through it all the Tiger was mighty.



Flesherton to Thornbury through Beaver Valley (41kms)





Thornbury Harbour to Creemore Brewery (77 kms)



Thornbury Harbour!


Just past the scenic caves on Blue Mountain.

Creemore for a late lunch.


Steady 100km/hr sections, twisties, as big an altitude change as you can find in Southern Ontario and we never missed a beat. Left at 10am, got home just past 4pm, multiple stops, always started on the button whether cold, or or somewhere in between.Temp was mid-teens leaving and mid-twenties returning.

It’s been a while since you’ve heard this on here, but I’m a happy Tiger owner.



1) Bin 2, 3 and 4
2) Remove the top of the servo (1) and leave it plugged in but detached from the airbox.
3) Block off the hole in the bottom of the airbox left by the removed idle control stuff..
4) Plumb the three vacuum lines out of the throttle bodies into each other through a T-junction.

Bob’s your uncle! No promises, but it did the trick for me.

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