Snowmobile World banner

1 - 4 of 4 Posts

·
Registered
Joined
·
209 Posts
Discussion Starter #1
I have picked up a set of pipes off of a 99 Z and was wondering if there will be any differnce in jetting or timing with these pipes. Or clutching changes.

My set up now is

I have the head cut and a 1.5 mm base gasket
310-320-310
solid pins
286 ramps
pu. gr. spring 160-260
black ice 46 deg.
stock secondary spring in a-6

any comments would be helpfull

Thanks
Duane
 

·
Registered
Joined
·
333 Posts
Sounds like your clutching should be close,should be able to get max rrrs to 8100-8200 with clicker on 3.Youll have to re-advance the timing back to 99 specs,and the 99s had 330 mains I believe(cant find the damn race manual).I tried the 99 pipes on my 98 and were not any faster(although) I didnt reset the timing.They did seem quicker coming out of corners though.I am trying a set of dyno ports now.For what its worth ,im not sure how much skidoo tachs are out by (some say 150to 200rpm high)but a couple of 99 machs I have clutched pulled better at or below 8000rpm especially those that have shim kits like yours.
 

·
Registered
Joined
·
209 Posts
Discussion Starter #3
Thanks for input

Where can I get one of those race manuals at the dealer.

I was going to ride it for a while like it is and then one day at my friends lake swich the pipes and see how it reacts.


Duane
 

·
Registered
Joined
·
2,422 Posts
99 specs:
Jets; 300
Needle jets; same
Jet needles; J8-8ADYO1-41 different than 98
Pilot; same
Timing .102- different

Go to ronnies.com for all the carb specs. to 2000 :thumbsup:
 
1 - 4 of 4 Posts
Top