Search found 113 matches

by Rancher1
Mon May 18, 2015 6:15 pm
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

Re: More torque out of 85' Spree

The reeds appear to open ok. I gave a weak try to remove the reed valve but it's caked on there pretty good. I stopped because I figured I'd rip the gaskets and/or crack the reed valve. Maybe I'll buy another valve and some gasket material then give it some muscle. So here's another interesting obse...
by Rancher1
Thu May 14, 2015 8:31 pm
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

Re: More torque out of 85' Spree

I pulled the carb off and still getting 95 PSI compression. Can anyone with a 48mm BBK report back what pressure they get? Maybe 95 PSI is normal for this kit? I pulled the cylinder and the bore is pristine - no scuffing at all. Rings seem tight enough. Checked the gaskets and they appear to be in s...
by Rancher1
Wed May 06, 2015 7:02 pm
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

Re: More torque out of 85' Spree

Well, as I'm waiting for the exhaust gasket, I did a compression test on a cold engine - peaked at 95 psi. That's serious. When I installed the BBK, there were three total gaskets. One metal for the cylinder to cylinder head, and two paper for cylinder to engine. The instructions said to put on BOTH...
by Rancher1
Tue May 05, 2015 8:19 pm
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

Re: More torque out of 85' Spree

Hi Wheelman. I'm actually reading an old article you posted about drilling out the pilot. Interesting stuff.

I'm coming to realize that the Spree is a fairly limited platform to mod and maintain for that matter. Still a fun little bike nonetheless.
by Rancher1
Tue May 05, 2015 8:07 pm
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

Re: More torque out of 85' Spree

Cleaned out muffler by washing it out with Simple Green, then baking while spraying compressed air through it. Smoked out a ton. I didn't notice any subjective increase in flow (did the mouth to pipe end blow test), but it can only help. Ordered OEM metal gasket so we'll see if that holds up. The ex...
by Rancher1
Tue May 05, 2015 1:12 pm
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

Re: More torque out of 85' Spree

Will do. Are these paper gaskets any good?

http://pages.ebay.com/link/?nav=item.vi ... 1330419735

Or should I stick with a new metal OEM? Would permatex ultra copper hold up? Claimed up to 700 F. I'm not sure how hot the cylinder typically gets.
by Rancher1
Tue May 05, 2015 2:57 am
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

Re: More torque out of 85' Spree

I didn't break in the new bore in yet - in process. Is there going to be that drastic a improvement as it breaks in? I did run it with the stock bore and it just didn't have the juice. I have not checked compression. My buddy might have the equipment and I'll look into it. Will bake the exhaust tomo...
by Rancher1
Sun May 03, 2015 8:54 pm
Forum: Performance Technical
Topic: More torque out of 85' Spree
Replies: 26
Views: 13350

More torque out of 85' Spree

Hey guys, read a lot here and would appreciate any suggestions you may have. I picked up a nice stock 85 Spree and need more low end power. Don't need any high end power. I bought it to go up and down a long very steep driveway but it just doesn't make it. I put in a 48mm BBK from Taz. I need to pla...