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Post by gsxrtriple1 on Apr 28, 2016 14:32:16 GMT -5
hi all just bought a set of j&r pipes for h1e engine is stock separate kn filters had a look at spread sheet of settings but only one spec for these pipes has any body on here used these pipes and if so what jetting was used any info much appreciated thanks
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Post by JA-Moo on Apr 28, 2016 18:48:24 GMT -5
Trash the K&N's get UNI's. Go up one on the pilots and up the needle one and 2 up on the mains to start.
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Post by acceleration on Apr 28, 2016 22:56:39 GMT -5
Back in the mid 70'S when I got my H1 E .I went to the Kawasaki dealer to order a set of DENCO chambers as they were a DENCO parts dealer.But when I got there they had a set of brand new chrome J&R chambers hanging on the wall.They made me an offer I couldn't refuse.$75.00 Bones.Nothing to lose at $75.00 bones ? I took them along with a set of K&N filters.A set of colder spark plugs and several jets to experiement with.Checked the timing on the bike and recall the bike winding out between 7.5K - 8K topped out in 5TH gear STOCK pipes etc.
I installed the chambers and the K&N'S and tried different pilot jets and moving the clip on the needle.But
it ran best with just around 100-102.4 main jets 92.5 was stock.J&R H1 500 pipes have a very short belly.And are a very under rated chamber.Stock with the J&R'S and the K&N's the bike would wind out to 9.5K RPM in 5TH and the speedo read about 127 MPH.There were several different versions of J&R's made.I recently found a set among my chamber collection, I didn't know i had.One thing about the J&R H1 chambers.They have excellent ground clearance if you like to handle the corners.And they do make decent power.I notice some of those pipes made in Japan that you can get these days.Sure look very similar to the early J&R H1 pipes.Your altitude will affect what jetting you will need.I am slightly below sea level.
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Post by triplepoweredgpz on Apr 29, 2016 5:48:22 GMT -5
My bike came pods and wirges, it had 100mains...it ran great
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j&r pipes
May 4, 2016 9:51:20 GMT -5
via mobile
Post by gsxrtriple1 on May 4, 2016 9:51:20 GMT -5
Trash the K&N's get UNI's. Go up one on the pilots and up the needle one and 2 up on the mains to start. [br When you say go one up on the needle do you mean leaner or richer ?] |
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Post by JA-Moo on May 4, 2016 11:12:32 GMT -5
richer, lower the clip.
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Post by hoozier on May 10, 2016 11:02:46 GMT -5
what about Denco street pipes? Just put a set on an H1D. Im wondering where these make power.
stock pipes are 7,500 rpm.
the motor is stock and Im using uni filters
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