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new to me trophy 900

3K views 17 replies 8 participants last post by  Pvo955 
#1 ·
picked up my 1996 tropy 900 today and must say i'm very impressed after a 170 mile trip home. after a 650 bmw single it feels very smooth and very planted, few wobbly moments in traffic coz i'm not used to the weight tho!!! one question is tho do the triples all sound rough and rattly when off the throttle? kinda like a realy rattly clutch??
 
#2 ·
It should sound like a finely tuned diesel rock crusher at idle. If it doesn't sound like a diesel rock crusher, it needs a valve job, and if it doesn't sound like a finely tuned one it needs the alternator bolt replaced. :D

Congrats on the new ride and welcome!

Cheers,
-Kit
 
#3 ·
That's funny. I've owned my '97 Trophy 900 since new, and have had numerous people ask me if it was a diesel if they only heard it at idle. ALL of the early triples (with sand-cast crankcases) sound like that.

Congrats lad!

:cool:
 
#5 ·
When I purchased my first Trophy 900 I was also concerned about the noise at idle. My (British) mechanic used exactly the same words as you "like ball bearings in a tin can" and stating they all sound like that.
I read that it is something to do with the backlash setup in the tranny and not to worry. I put 50,000 km on my bike with no problems.
Welcome to the Triumph Trophy site and hopefully you will grow to love your bike as the rest of us here do.:)
 
#6 ·
i'm absolutely loving it! my test drive was after i payed for it, on frosty roads made from concrete:( in the first 100yds i had turn across and uphill a busy main road:eek: then 140miles of motorway:mad:
so much smoother than my old F650 which was like riding a jackhammer!!
 
#11 ·
think i've found out the source of the noise.... turns out the previous owner, who told me a new chain and sprocket had been fitted, had fitted just that, a chain and sprocket and not the front one:( as it its a big job to do...... i was in the bike shop today for a new front tyre fitted and the mechanic pushed the bike into the workshop you could hear the chain clinking over the front sprocket. and he said i bet thats noisey when you roll off the throttle!!! under load there is no noise as the chain is held tight against the teeth but when you roll the throttle off the chain clatters about causing lots and lots off noise.
 
#12 ·
just to update on the source of the noise, i finally got fed up with it last week and decided to change the chain and sprockets, after 2hrs of stripping and oil draining i got to the source of the problem...... turns out that the previous owner hadn't tightened the bolt holding the front sprocket. its actually worn the splines on the sprocket to sharp points it was moving that much:mad: luckily the output shaft seems to be ok. anyhoo banged it all back together and all is quiet!!
 
#13 ·
Yikes! Its good you found that. It would eventually ruin the shaft.
If the front sprocket splines are worn very bad I would put a fresh sprocket on at some point,even tight it can move around under load and maybe cause problems. They arent that expensive.
 
#16 ·
PO may have tightened it. Was there a lock washer on there when you took it a part? It's a fitted flat washer. Once the nut is tightened, the washer is bent up against a flat side of the nut to keep it from backing off.

Happy trails,
Erv
 
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