voelser
XS650 Addict
Hey guys,
I've decided to replace my old BS38 carbs with some shiney new TM34's. Obviously they will need re-jetting, so I'm trawling the internet for information, and have already trawled through here (but maybe I've missed things) so I thought I'd see if you guys have any knowledge to share.
The engine is on it's second oversize (so slightly increased capacity), no airbox but pod filters instead, unbaffled exhaust. The BS38's are set up as follows: PJ:25, MJ: 140, NJ: Z8, stock needle (unsure what clip). Runs fine albeit a bit rich on startup and low... revs.
From the information I gathered so far the most common suggestion for the TM34's is as follows:
PJ: 25, MJ: 190, NJ: P6, Needle 6FP (middle clip).
What do you guys think?
My jetting chart. Baseline of current setup on the left, stock Mikuni setup, a reference chopper (which also runs rich on startup) and some setups I've gathered from research:
Pic of the bike:
I've decided to replace my old BS38 carbs with some shiney new TM34's. Obviously they will need re-jetting, so I'm trawling the internet for information, and have already trawled through here (but maybe I've missed things) so I thought I'd see if you guys have any knowledge to share.
The engine is on it's second oversize (so slightly increased capacity), no airbox but pod filters instead, unbaffled exhaust. The BS38's are set up as follows: PJ:25, MJ: 140, NJ: Z8, stock needle (unsure what clip). Runs fine albeit a bit rich on startup and low... revs.
From the information I gathered so far the most common suggestion for the TM34's is as follows:
PJ: 25, MJ: 190, NJ: P6, Needle 6FP (middle clip).
What do you guys think?
My jetting chart. Baseline of current setup on the left, stock Mikuni setup, a reference chopper (which also runs rich on startup) and some setups I've gathered from research:
Pic of the bike: