Yamaha TRX850 Enthusiasts Forum

I don’t know much about these and am interested to know if anyone has fitted them and their thoughts about them, problems, benefits etc, thanks Steve.

There are a few members here who have fitted TDMR's.
Performance and tuning wise, they're about the same as FCR's.
Search for TMDR and you you'll find heaps of info.

Bucko wrote:I don’t know much about these and am interested to know if anyone has fitted them and their thoughts about them, problems, benefits etc, thanks Steve.

Problems: The usual regarding carb setup, but they are well documented and dealers that sell them usually know what you need well enough for bike to improve without dyno runs.
Benefits: Normally about 5-10 hp and a completely difference throttle response. Not the issue with worn emulsion tubes that haunts stock carbs.

It's been a known upgrade for the last 20 years, similar to Keihin FCR's.

jpe70 wrote:

Bucko wrote:I don’t know much about these and am interested to know if anyone has fitted them and their thoughts about them, problems, benefits etc, thanks Steve.

Problems: The usual regarding carb setup, but they are well documented and dealers that sell them usually know what you need well enough for bike to improve without dyno runs.
Benefits: Normally about 5-10 hp and a completely difference throttle response. Not the issue with worn emulsion tubes that haunts stock carbs.

It's been a known upgrade for the last 20 years, similar to Keihin FCR's.

You forgot a benefit: the sound of the intake!