LOL...yeah buddy. It's a frikking lawn mower engine running at 7000 feet powering a damn Cat mini bike. As impressed as I am by the crop of Instant Mechanics shouting out Googled answers, I never forget that if I really wanted to go fast, I'd buy a 2001 Hyundai and reach blistering speeds of 90 MPH. I mean heck, that is faster than my 625 Horsepower Jet Boat would run. 
Remarks on heat range, timing and fuel ring have to do with plug reading, most of which is impossible and irrelevant on a lawn mower engine. Hint: It is very "Google" searchable, and no pit crew I was ever a part of bothered with it.
Remarks on heat range, timing and fuel ring have to do with plug reading, most of which is impossible and irrelevant on a lawn mower engine. Hint: It is very "Google" searchable, and no pit crew I was ever a part of bothered with it.
LOL...yeah buddy. It's a frikking lawn mower engine running at 7000 feet powering a damn Cat mini bike. As impressed as I am by the crop of Instant Mechanics shouting out Googled answers, I never forget that if I really wanted to go fast, I'd buy a 2001 Hyundai and reach blistering speeds of 90 MPH. I mean heck, that is faster than my 625 Horsepower Jet Boat would run.
Remarks on heat range, timing and fuel ring have to do with plug reading, most of which is impossible and irrelevant on a lawn mower engine. Hint: It is very "Google" searchable, and no pit crew I was ever a part of bothered with it.
Remarks on heat range, timing and fuel ring have to do with plug reading, most of which is impossible and irrelevant on a lawn mower engine. Hint: It is very "Google" searchable, and no pit crew I was ever a part of bothered with it.
What it boils down to is those autolites are a pain in the AZZ and some people swear by them but I hate em and see no gain ... Once you get a NGK you will be able to tune your bored SA carb .. elevation wise I would have asked Russel when ordering it what he recommended .. very knowledgeable guy .. and if I were you I still might give him a buzz just to get his input
I had it when I was living in Tooele. (Hated that place) Had the engine built by a race boat engine guy in SoCal, dyno'd at 625 there, brought it to Utah, and spent a season trying to tune it. Finally moved down here, and put it back to original tune.
Can you imagine the plug reading technique used on a jet boat with over 600 HP? Start it, nail the throttle, get it to 8000 RPM, (70 MPH) and then shut it down. Yeah, that didn't work. Hard to read the plugs when the cyls are full of Utah Lake.
That's me in the background at Utah Lake, blasting past a 460 Ford. Ah those were the days.
Sorry for the diversion, but I thought I'd screw up your thread with inconsequential BS about boats, Utah, and 7000 feet of tuning FUN!
Can you imagine the plug reading technique used on a jet boat with over 600 HP? Start it, nail the throttle, get it to 8000 RPM, (70 MPH) and then shut it down. Yeah, that didn't work. Hard to read the plugs when the cyls are full of Utah Lake.
That's me in the background at Utah Lake, blasting past a 460 Ford. Ah those were the days.
Sorry for the diversion, but I thought I'd screw up your thread with inconsequential BS about boats, Utah, and 7000 feet of tuning FUN!
I had it when I was living in Tooele. (Hated that place) Had the engine built by a race boat engine guy in SoCal, dyno'd at 625 there, brought it to Utah, and spent a season trying to tune it. Finally moved down here, and put it back to original tune.
Can you imagine the plug reading technique used on a jet boat with over 600 HP? Start it, nail the throttle, get it to 8000 RPM, (70 MPH) and then shut it down. Yeah, that didn't work. Hard to read the plugs when the cyls are full of Utah Lake.
That's me in the background at Utah Lake, blasting past a 460 Ford. Ah those were the days.
Sorry for the diversion, but I thought I'd screw up your thread with inconsequential BS about boats, Utah, and 7000 feet of tuning FUN!
View attachment 96579
Can you imagine the plug reading technique used on a jet boat with over 600 HP? Start it, nail the throttle, get it to 8000 RPM, (70 MPH) and then shut it down. Yeah, that didn't work. Hard to read the plugs when the cyls are full of Utah Lake.
That's me in the background at Utah Lake, blasting past a 460 Ford. Ah those were the days.
Sorry for the diversion, but I thought I'd screw up your thread with inconsequential BS about boats, Utah, and 7000 feet of tuning FUN!
View attachment 96579