What year engine?

RETed · 04-18-2012, 01:51 AM

If it stock carb, it's a 12A.
13B's are only available in the top-of-the-line GSL-SE's with stock fuel injection.

GSL-SE = 4x114.3mm bolt pattern hubs, rear disc brakes
Everything else = 4x110mm bolt pattern hubs

-Ted

magpiemini · 04-18-2012, 10:44 AM

Quote:

Originally Posted by RETed

If it stock carb, it's a 12A.
13B's are only available in the top-of-the-line GSL-SE's with stock fuel injection.

GSL-SE = 4x114.3mm bolt pattern hubs, rear disc brakes
Everything else = 4x110mm bolt pattern hubs-Ted

I admit I am new to this rotary stuff but I have seen 13b engines with carbs, were they not delivered that way from the factory?

FerociousP · 04-18-2012, 12:07 PM

Quote:

Originally Posted by magpiemini

I admit I am new to this rotary stuff but I have seen 13b engines with carbs, were they not delivered that way from the factory?

Not in an rx-7. early and mid 70s rotaries had carb'd 4port 13Bs... but all 1st gens were either carb'd 12As or fuel injected 13Bs.

j9fd3s · 04-24-2012, 11:37 PM

1. i would look in the factory parts catalog for jetting before sterlings website, his chart might not be accurate.

2. an 85 GS should have a 12A in it. there are a couple flavors of 12A, but a 4 belt pulley and studs on the front cover probably mean the engine is the correct one.

3. there is a page in the factory shop manual, www.foxed.ca on how to do a tuneup, like setting the idle mixture and timing, you should start there.

04-24-2012, 11:37 PM	#4
j9fd3s Rotary Fanatic Join Date: Mar 2008 Posts: 123 Rep Power: 18	1. i would look in the factory parts catalog for jetting before sterlings website, his chart might not be accurate. 2. an 85 GS should have a 12A in it. there are a couple flavors of 12A, but a 4 belt pulley and studs on the front cover probably mean the engine is the correct one. 3. there is a page in the factory shop manual, www.foxed.ca on how to do a tuneup, like setting the idle mixture and timing, you should start there.