TR500 won't rev over 6000rpm

Getting your blazingly fast Suzuki powerplant to perform even better!

Moderators: oldjapanesebikes, H2RICK, diamondj, Suzsmokeyallan

ben james
On the street
Posts: 20
Joined: Sun May 06, 2012 5:40 am
Country: australia
Suzuki 2-Strokes: t250

Re: TR500 won't rev over 6000rpm

Post by ben james »

tank
You do not have the required permissions to view the files attached to this post.
User avatar
ChrisK
On the main road
Posts: 121
Joined: Mon Nov 25, 2013 1:16 pm
Country: Australia
Suzuki 2-Strokes: T250, GS550, TL1000S, T500 race, GSXR400 race
Location: Perth, Western Australia

Re: TR500 won't rev over 6000rpm

Post by ChrisK »

Ben, did you ever get this to rev properly? If so what was the issue? I had a similar problem (not quite so pronounced) with mine in the early days and it ended up being pipe dimensions. I also found to my surprise as we retarded the ignition timing (Zeeltronics) it kept making more power.
ben james
On the street
Posts: 20
Joined: Sun May 06, 2012 5:40 am
Country: australia
Suzuki 2-Strokes: t250

Re: TR500 won't rev over 6000rpm

Post by ben james »

I did get the problem solved. After I replaced the fuel tap I took the bike out to local track at Broadford. Short 2 km track. First session bike cut out after 2 laps. Took bike back to pits & it started again. Took bike out again & it cut out again after 2 laps. Was revving to 8000 rpm though. Pulled R/H cylinder off & had partial seizure. Was advised when I bought bike to run oil pump at about half & 100:1 fuel mix. Problem was not enough oil. Replaced Piston honed bore & ran 25:1 fuel oil mix & no further problems. Bike has ran 3 race meetings without a problem.
Zunspec4
Expert racer
Posts: 1087
Joined: Tue Dec 16, 2008 11:37 am
Country: UK
Suzuki 2-Strokes: T500R, SV1000S, TS125, Seeley T500
Location: Trowbridge UK

Re: TR500 won't rev over 6000rpm

Post by Zunspec4 »

Hello Ben,

I holed a piston the first time I took my Seeley T500 on track. Suspected cause was fuel starvation due to the taps not flowing enough fuel at full throttle. I replaced them with taps designed to flow methanol, which of course provide a much higher flow than petrol taps. I run pre-mix only at 20:1 (Castrol A747)

glad you got yours sorted :up:

Cheers Geoff
Post Reply