What did you do with your Trials Bike today?

[grizzzly]

Originally Posted by Gordy

Grizzzly riding INT on a not as old as Brewtus' POS, but one nonetheless.

i am not sure but i think Brewtus's bike is newer than my ty (1985 TY350 )

[brewtus]

Originally Posted by grizzzly

i am not sure but i think Brewtus's bike is newer than my ty (1985 TY350 )

It is. OJ is an '86/'87 TLR200 Reflex. It spans both years, as the 3 piles of parts that built it were from both.

[motojunky]

Originally Posted by AteamNM

WIN!

I couldn't agree more.

She's asking about riding this weekend again.

On top of that, I got to sneak in a lunch ride again today.

[JeffS77]

this little TY is now only pumping 20psi after this weekend snow and slush ride

[JeffS77]

little bit of a failure on the exhaust port side

[Motorrad]

I introduced my new Cota to my sherpa.. they are now cracking jokes in spanish in the garage.... I think they are about me

[brewtus]

Originally Posted by JeffS77

little bit of a failure on the exhaust port side

Merely a flesh wound.

[Twin-shocker]

Originally Posted by JeffS77

little bit of a failure on the exhaust port side

The TY175 is based on an overbored 125 motor, and does run very hot due the cooling fins having been intended for 125cc.

If you run these bikes hard in muddy conditions without a mud flap on the front guard, then the front of the cylinder will quickly become clogged with mud.

This doesnt make a lot of difference if bike is being ridden slowly in trials application, but when piston crown temperature is very high due to sustained high rpm use, seizure on the front skirt of the piston will often result.

Its really a very good idea to fit a mudflap to any air-cooled bike thats going to get used in muddy conditions, as air-cooled cylinders really dont work very well at all when they are clogged with mud!

[Shercoman]

Originally Posted by Twin-shocker

Its really a very good idea to fit a mudflap to any air-cooled bike thats going to get used in muddy conditions, as air-cooled cylinders really dont work very well at all when they are clogged with mud!

This is very good advice.
Back in the ATV 3 wheeler days,I showed up at a mud race with a piece of sheet metal clamped to the frame in front of the cylinder on my ATC 250R.
Got a lot of ribbing before the race.
Mine was the only 250R that finished the race.
Gotta keep that mud out of the fins!!

[JeffS77]

it had somemud in the fins but wasnt packed..nothing worse then i have done to any bikes in the past.

mud flap..hell I got a trials front fender with the molded in flap on the back..not sure how much more protection i can get out of a fender.

[Twin-shocker]

Originally Posted by JeffS77

it had somemud in the fins but wasnt packed..nothing worse then i have done to any bikes in the past.

mud flap..hell I got a trials front fender with the molded in flap on the back..not sure how much more protection i can get out of a fender.

If the bike didnt overheat due to clogged fins, then it seems like you might either have worn main bearings, or possibly an issue with the type/amount of 2T oil used in the fuel.

[JeffS77]

just running repsol standard 2T injector oil...i have a suspension it had too hot of a plug..I always run NGK B7's in it but swapped out a Champion in it that i was told was the same plug when cross referenced..but i think somebody was lying...gonna cross reference tonight my self....that parts counter boy better hide when i get there

I thought I heard it pinging but my dad was riding it and he is hard of hearing. when I asked him he said it was running fine. I am not sure he heard the ping


the bike was getting plenty of oil the reeds and crank where nice and oily.

[brewtus]

Originally Posted by JeffS77

.i have a suspension it had too hot of a plug..

Gotta love autocorrect....

Originally Posted by JeffS77

just running repsol standard 2T injector oil..I thought I heard it pinging but my dad was riding it and he is hard of hearing.

Not that it really means anything, but a number of years ago I tried the Repsol pre-mix oil in my TXT270. It started making some not-so-good sounds out of the engine soon after the change. I got nervous and changed back to the Motul Off-Road pre-mix I had been running previously. Not a month afterward, the Repsol rep came into the Honda dealership where I worked at the time to help promote Repsol products in the US (this was around summer of 2006). He was very...enthusiastic about Repsol oil for MX and Roadracing, but when I asked him about using it for Trials use (low mixture ratio), he kinda screwed up his face and stumbled/gestured (remember he was a Repsol rep-from Spain. English was NOT his first language) "No no, no Trials good, no. Good for Roadracing!!" Well, that kinda convinced me right there. Motul Off-Road it's been ever since in my TY's, along with the 314 and 315 Montesas I own. The Repsol oil is now the pre-mix of choice for my Daytona Special Yamaha.

I'm also assuming since you said you were running the injector oil that you still have the injector system installed on your TY. This is merely my humble, but I would remove that and run the TY with pre-mix. I've never been a big fan of the injector pump system (too vague and susceptible to environmental influences for my trust), and have removed it from every OE injector-equipped bike I own, running pre-mix instead. This includes all my TY's, the aforementioned RD400F Daytona, and my TG50 Gyro S Honda scooter. I replaced lots of top-ends on injector-equipped bikes back in my previous career as a motorcycle tech, and substantially less on pre-mix bikes. Just sayin'.

[JeffS77]

Originally Posted by brewtus

I'm also assuming since you said you were running the injector oil that you still have the injector system installed on your TY. This is merely my humble, but I would remove that and run the TY with pre-mix. I've never been a big fan of the injector pump system (too vague and susceptible to environmental influences for my trust), and have removed it from every OE injector-equipped bike I own, running pre-mix instead. This includes all my TY's, the aforementioned RD400F Daytona, and my TG50 Gyro S Honda scooter. I replaced lots of top-ends on injector-equipped bikes back in my previous career as a motorcycle tech, and substantially less on pre-mix bikes. Just sayin'.

and then all my vintage Yamaha buddies say DO NOT disconnect the oil injection and some of them do put tons of miles on their bikes...tomato - tomato

I run the 2T standard injector oil



and I ran this stuff in a '68 Kawi Bushwacker I totally abused and never had a problem with it.

Just checked a pulg and it is a Champion 8902..is anything it is a tad cold like a NGK B9ES


oh and you got a GYRO ?? cool a buddy of mine just picked up a Honda Express SR...another odd bike...Honda made some cool stuff in the 80's

[NMTrailboss]

Originally Posted by JeffS77

...Honda made some cool stuff in the 80's

Yup.... I miss the old Honda.